inis20240930c

Table of Contents

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2024

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from _____________ to _______________

Commission file number:

0-22923

INTERNATIONAL ISOTOPES INC.

(Exact name of registrant as specified in its charter)

Texas

74-2763837

(State or other jurisdiction of

incorporation or organization)

(IRS Employer Identification No.)

4137 Commerce Circle

Idaho Falls, Idaho, 83401

(Address of principal executive offices, including zip code)

(208) 524-5300

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act: None

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. ☒ Yes ☐ No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). ☒ Yes ☐ No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☐	Accelerated filer ☐
Non-accelerated filer ☒	Smaller reporting company ☒

	Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). ☐ Yes ☒ No

As of November 7, 2024, the number of shares of common stock, $0.01 par value, outstanding was 523,553,435.

Table of Contents

	September 30,			December 31,
	2024			2023
Assets
Current assets
Cash and cash equivalents	$	2,372,983		$	2,688,141
Accounts receivable		1,471,917			1,469,298
Inventories		845,041			927,111
Prepaids and other current assets		489,581			672,934
Total current assets		5,179,522			5,757,484

Long-term assets
Restricted cash		1,414,777			880,752
Property, plant and equipment, net		2,573,726			2,465,077
Capitalized lease disposal costs, net		651,580			688,462
Financing lease right-of-use asset		2,103			6,611
Operating lease right-of-use asset		2,082,689			2,183,988
Goodwill		1,384,255			1,384,255
Patents and other intangibles, net		3,414,787			3,538,458
Total long-term assets		11,523,917			11,147,603
Total assets	$	16,703,439		$	16,905,087

Liabilities and Stockholders' Equity
Current liabilities
Accounts payable	$	607,719		$	559,597
Accrued liabilities		1,717,047			1,482,179
Unearned revenue		656,656			932,682
Current portion of operating lease right-of-use liability		148,020			140,733
Current portion of financing lease liability		528			2,832
Current installments of notes payable		141,434			155,733
Total current liabilities		3,271,404			3,273,756

Long-term liabilities
Accrued long-term liabilities		46,875			75,000
Related party notes payable		1,620,000			1,620,000
Notes payable, net of current portion		160,667			270,732
Asset retirement obligation		1,526,898			1,474,463
Operating lease right-of-use liability, net of current portion		1,979,567			2,091,511
Mandatorily redeemable convertible preferred stock		4,063,000			4,063,000
Total long-term liabilities		9,397,007			9,594,706
Total liabilities		12,668,411			12,868,462

Stockholders' equity
Common stock, $0.01 par value; 750,000,000 shares authorized; 523,455,145 and 519,787,870 shares issued and outstanding respectively		5,234,551			5,197,879
Additional paid in capital		126,367,581			126,168,605
Accumulated deficit		(127,567,104	)		(127,329,859	)
Total equity		4,035,028			4,036,625
Total liabilities and stockholders' equity	$	16,703,439		$	16,905,087

	Three months ended September 30,						Nine months ended September 30,
	2024			2023			2024			2023

Sale of product	$	3,924,444		$	2,918,556		$	9,998,135		$	9,120,256
Cost of product		1,475,016			1,125,888			3,665,085			3,704,939
Gross profit		2,449,428			1,792,668			6,333,050			5,415,317

Operating costs and expenses:
Salaries and contract labor		1,074,535			1,152,987			2,976,880			3,072,348
General, administrative and consulting		1,082,937			848,597			3,133,557			2,620,449
Research and development		112,351			100,544			489,328			408,012
Total operating expenses		2,269,823			2,102,128			6,599,765			6,100,809

Net operating income (loss)		179,605			(309,460	)		(266,715	)		(685,492	)

Other income (expense):
Other income		20,718			22,873			176,094			123,803
Interest income		31,812			20,328			98,071			49,270
Interest expense		(81,884	)		(82,346	)		(244,695	)		(247,542	)
Total other income (expense)		(29,354	)		(39,145	)		29,470			(74,469	)
Net Income (Loss)	$	150,251		$	(348,605	)	$	(237,245	)	$	(759,961	)

Net loss per common share - basic:	$	—		$	—		$	—		$	—
Net loss per common share - diluted:	$	—		$	—		$	—		$	—

Weighted average common shares outstanding - basic		523,138,891			518,301,657			522,028,572			517,265,031
Weighted average common shares outstanding - diluted		523,138,891			518,301,657			522,028,572			517,265,031

	Nine months ended September 30,
	2024			2023
Cash flows from operating activities
Net loss	$	(237,245	)	$	(759,961	)
Adjustments to reconcile net loss to net cash provided by operating activities
Depreciation and amortization		301,211			262,029
Accretion of obligation for lease disposal costs		52,435			39,570
Equity based compensation		136,601			398,727
Gain on sale of property, plant, and equipment		(13,492	)		—
Right-of-use asset changes, net		(3,358	)		(3,359	)
Changes in operating assets and liabilities:
Accounts receivable		(2,619	)		214,185
Inventories		82,070			3,990
Prepaids and other current assets		183,353			585,775
Accounts payable and accrued liabilities		345,285			(168,813	)
Unearned revenues		(276,026	)		125,502
Net cash provided by operating activities		568,215			697,645

Cash flows from investing activities:
Proceeds from sale of property, plant, and equipment		36,000			—
Purchase of property, plant and equipment		(267,307	)		(550,629	)
Net cash used in investing activities		(231,307	)		(550,629	)

Cash flows from financing activities:
Proceeds from sale of stock and exercise of options and warrants		8,627			7,127
Payments on financing lease		(2,304	)		(4,770	)
Proceeds from the issuance of notes payable		—			452,100
Principal payments on notes payable		(124,364	)		(50,792	)
Net cash used in financing activities		(118,041	)		403,665

Net increase in cash, cash equivalents, and restricted cash		218,867			550,681
Cash, cash equivalents, and restricted cash at beginning of period		3,568,893			3,215,866
Cash, cash equivalents, and restricted cash at end of period	$	3,787,760		$	3,766,547

Supplemental disclosure of cash flow activities:
Cash paid for interest	$	157,320		$	159,926
Cash paid for income taxes	$	—		$	—

Supplemental disclosure of noncash financing and investing transactions
Decrease in accrued interest and increase in equity for conversion of dividends to stock	$	90,420		$	90,660

Reconciliation of cash, cash equivalents, and restricted cash as shown in the condensed consolidated statements of cash flows is presented in the table below:

(1) The Company and Basis of Presentation

International Isotopes Inc. (INIS) was incorporated in Texas in November 1995. The accompanying unaudited condensed consolidated financial statements are presented in conformity with accounting principles generally accepted in the United States of America (GAAP) and include all operations and balances of INIS and its wholly-owned subsidiaries, including RadQual, LLC (RadQual) and TI Services, LLC (TI Services). RadQual is a global supplier of molecular imaging quality control and calibration devices, and is based at INIS headquarters in Idaho Falls, Idaho. TI Services is headquartered in Boardman, Ohio and distributes products for nuclear medicine, nuclear cardiology, and Positron Emission Tomography (PET) imaging. INIS, and its wholly-owned subsidiaries are collectively referred to herein as the “Company,” “we,” “our” or “us.”

Nature of Operations – The Company manufactures a full range of nuclear medicine calibration and reference standards, generic sodium iodide I-131 drug product, cobalt teletherapy sources, and a varied selection of radiochemicals for medical research, and clinical applications. For 2024, the Company’s business consists of five business segments: Theranostics Products, Cobalt Products, Nuclear Medicine Standards, Medical Device Products, and Fluorine Products. The Company’s headquarters and all manufacturing operations are located in Idaho Falls, Idaho.

With the exception of certain unique products, the Company’s normal operating cycle is considered to be one year. Due to the time required to produce some cobalt products, the Company’s operating cycle for those products is considered to be two to three years. Accordingly, preliminary payments received on cobalt contracts, where shipment will not take place for greater than one year, have been recorded as unearned revenue and, depending upon estimated ship dates, classified under either current or long-term liabilities on the Company’s condensed consolidated balance sheets. These unearned revenues are being recognized as revenue in the periods during which the cobalt shipments take place. All assets expected to be realized in cash or sold during the normal operating cycle of business are classified as current assets.

Principles of Consolidation – The accompanying unaudited condensed consolidated financial statements are presented in conformity with GAAP and include all operations and balances of INIS and its wholly-owned subsidiaries including RadQual and TI Services. See Note 4 “Investment and Business Consolidation” for additional information. All significant intercompany accounts and transactions have been eliminated in consolidation.

Interim Financial Information – The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information and pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (SEC). Accordingly, the accompanying unaudited condensed consolidated financial statements do not include all of the information and notes required by GAAP for complete financial statements. In the opinion of management, all adjustments and reclassifications considered necessary in order to make the financial statements not misleading and for a fair and comparable presentation have been included and are of a normal recurring nature. Operating results for the three and nine months ended September 30, 2024 are not necessarily indicative of the results that may be expected for the year ending December 31, 2024 or any future periods. The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 filed with the SEC on March 29, 2024.

Recent Accounting Pronouncements – In November 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2023-07, Segment Reporting (Topic 280) - Improvements to Reportable Segment Disclosures, which enhances the disclosures required for operating segments in the Company’s annual and interim consolidated financial statements. ASU 2023-07 is effective for the Company in our annual reporting for fiscal 2024 and for interim period reporting beginning in fiscal 2025 on a retrospective basis, with all required disclosures to be made for all prior periods presented in the consolidated financial statements. Early adoption is permitted. The Company is currently evaluating the impact of ASU 2023-07 on its consolidated financial statements.

In December 2023, FASB issued ASU 2023-09, Income Taxes (Topic 740) - Improvements to Income Tax Disclosures, which enhances the disclosures required for income taxes in the Company’s annual consolidated financial statements. Notably, this ASU requires entities to disclose specific categories in the effective tax rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold. ASU 2023-09 is effective for the Company in its annual reporting for fiscal 2025 on a prospective basis. Early adoption and retrospective reporting are permitted. The Company is currently evaluating the impact of ASU 2023-09 on its consolidated financial statements.

Table of Contents

(2) Current Developments and Liquidity

Business Condition – Since inception, the Company has incurred substantial losses. During the nine months ended September 30, 2024, the Company reported a net loss of $237,245 and net cash provided by operating activities of $568,215. During the nine months ended September 30, 2023, the Company reported net loss of $759,961 and net cash provided by operating activities of $697,645.

During the three and nine months ended September 30, 2024, the Company continued its focus on its strongest long-standing core business segments which consist of its Theranostics Products (previously called Radiochemical Products), Cobalt Products, and Nuclear Medicine Standards, and in particular, the pursuit of new business opportunities within those segments. Additionally, the Company has begun to focus on the start-up of its Medical Device segment which includes assets purchased from AMICI in 2023 and investing into an EasyFill Automated Iodine Capsule System.

The Company holds a Nuclear Regulatory Commission (NRC) construction and operating license for the depleted uranium facility in, as well as the property agreement with, Lea County, New Mexico, where the plant is intended to be constructed. The NRC license for the de-conversion facility is a forty (40) year operating license and is the first commercial license of this type issued in the United States. On February 8, 2024, the Company entered into a definitive agreement to sell all of our assets related to the Fluorine Products segment and the Planned Uranium De-Conversion Facility, including the Lea County land, ("DUF6 Asset Sale"). The Company expects to close the agreement within 12 to 24 months of signing. Closing is contingent on various conditions being met, including approvals and agreements by the NRC and other third parties.

The Company expects that cash from operations, equity or debt financing, and its current cash balance will be sufficient to fund operations for the next twelve months. Future liquidity and capital funding requirements will depend on numerous factors, including commercial relationships, technological developments, market factors, available credit, and management of redeemable convertible preferred stock. There is no assurance that additional capital and financing will be available on acceptable terms to the Company or at all.

Table of Contents

(3) Net Income (Loss) Per Common Share - Basic and Diluted

For the three and nine months ended September 30, 2024, the Company had 27,012,500 stock options outstanding, 5,250,000 restricted stock units outstanding, and 4,063 outstanding shares of Series C redeemable convertible preferred stock (Series C Preferred Stock), each of which were not included in the computation of diluted income (loss) per common share because they would be anti-dilutive.

For the three and nine months ended September 30, 2023, the Company had 26,012,500 stock options outstanding, 7,000,000 restricted stock units outstanding, and 4,063 outstanding shares of Series C Preferred Stock, each of which were not included in the computation of diluted income (loss) per common share because they would be anti-dilutive.

The table below shows the calculation of diluted shares:

	3 Months Ended				9 Months Ended
	September 30,		September 30,		September 30,		September 30,
	2024		2023		2024		2023
Weighted average common shares outstanding - basic		523,138,891		518,301,657		522,028,572		517,265,031

Effects of dilutive shares
Stock Options		—		—		—		—
Series C Preferred Stock		—		—		—		—
Weighted average common shares outstanding - diluted		523,138,891		518,301,657		522,028,572		517,265,031

The table below summarizes common stock equivalents outstanding at September 30, 2024 and September 30, 2023:

	September 30,
	2024		2023
Stock options		27,012,500		26,012,500
Restricted Stock Units		5,250,000		7,000,000
Shares of Series C Preferred Stock		40,630,000		40,630,000
		72,892,500		73,642,500

Table of Contents

(4) Investment and Business Consolidation

The Company owns all of the membership interest of RadQual. TI Services is a 50/50 joint venture between the Company and RadQual, therefore TI Services is also treated as a wholly-owned subsidiary of the Company.

In June 2023, the Company executed an agreement to buy medical devices and related assets and intellectual property rights from AMICI, Inc. The Company has been working on startup of manufacturing. These assets and expenses are included in the Medical Device Segment; launch of these products is expected in 2025 (delayed from a Q4 2024 anticipated launch).

On June 3, 2024, the Company entered into a Strategic Development and Distribution Agreement with Alpha Nuclide Inc for the rights to manufacture and distribute the Company’s Theranostics Products and Nuclear Medicine Products in mainland China as part of a 50/50 joint Venture between the Company and Alpha Nuclides. The parties will begin with the distribution of the Company’s Nuclear medicine Products as part of phase I of the strategic alliance, with further planned milestones for the establishment of a joint venture to register the Company’s Theranostics & Nuclear Medicine Products with the CFDA for local manufacturing and distribution. The parties envision commercializing INIS's radiopharmaceutical Iodine-131, radiochemical API, and theranostics API I-131 for 3^rd party therapeutic applications in China. The parties intend to manufacture and distribute the products from Alpha Nuclide's Jiaxing facility, which Alpha Nuclides is responsible for establishing. The parties also intend to enter into a supply agreement for raw material isotopes to be supplied from Alpha Nuclide to the Company to be used in the Company’s manufacturing process at the Company’s Idaho Falls, Idaho facility.

On August 6, 2024, the Company entered into a joint venture agreement with Phantech LLC to form PhanQual. PhanQual will leverage INIS’s and Phantech’s technologies, facilities, experience, and global network to design, manufacture, and distribute sealed sources, including adapting Phantech's patented and cutting-edge fillable calibration source technology, into sealed source calibration devices to better serve the R&D and theranostics community. Additionally, RadQual will globally distribute Phantech’s entire portfolio of fillable sources through RadQual’s global network of distributors. PhanQual’s revenues and operations will operate through RadQual and will be included in our Nuclear Medicine Standards segment.

(5) Stockholders’ Equity, Options, and Warrants

Employee Stock Purchase Plan

The Company has an employee stock purchase plan pursuant to which employees of the Company may participate to purchase shares of common stock at a discount. During the nine months ended September 30, 2024 and 2023, the Company issued 290,625 and 279,534 shares of common stock, respectively, to employees under the employee stock purchase plan for proceeds of $8,627 and $7,127, respectively. As of September 30, 2024, 1,933,919 shares of common stock remain available for issuance under the employee stock purchase plan.

Stock-Based Compensation Plans

2015 Incentive Plan - In April 2015, the Company’s Board of Directors approved the International Isotopes Inc. 2015 Incentive Plan (as amended, the 2015 Plan), which was subsequently approved by the Company’s shareholders in July 2015. The 2015 Plan was amended and restated in July 2018 to increase the number of shares authorized for issuance under the 2015 Plan by an additional 20,000,000 shares. The 2015 Plan provides for the grant of incentive and non-qualified stock options, stock appreciation rights, restricted stock, restricted stock units, performance shares and units, and other stock or cash-based awards. At September 30, 2024, there were 18,249,296 shares available for issuance under the 2015 Plan.

Employee/Director Grants - The Company accounts for issuances of stock-based compensation to employees by recognizing, as compensation expense, the cost of employee services received in exchange for equity awards. The compensation expense is based on the grant date fair value of the award. Stock option compensation expense is recognized over the period during which an employee is required to provide service in exchange for the award (the vesting period).

Non-Employee Grants - The Company accounts for its issuances of stock-based compensation to non-employees by recognizing compensation expense based on the grant date fair value of the award. Stock option compensation expense is recognized over the vesting period for the award.

Table of Contents

Option awards outstanding as of September 30, 2024, and changes during the nine months ended September 30, 2024, were as follows:

					Weighted
			Weighted		Average
			Average		Remaining		Aggregate
Fixed Options	Shares		Exercise Price		Contractual Life		Intrinsic Value
Outstanding at December 31, 2023		24,787,500	$	0.05		5.4	$	17,000
Granted		3,075,000		0.04
Exercised		—		—
Expired		—		—
Forfeited		850,000		0.07
Outstanding at September 30, 2024		27,012,500		0.05		5.2	$	17,000
Exercisable at September 30, 2024		20,007,500	$	0.05		4.1	$	16,000

The intrinsic value of outstanding and exercisable shares is based on the closing price of the Company’s common stock on the OTCQB of $0.04 per share on September 30, 2024, the last trading day of the three months ended September 30, 2024.

As of September 30, 2024, there was $88,220 of unrecognized compensation expense related to stock options that will be recognized over a weighted-average period of 1.68 years.

Total stock-based compensation expense for the nine months ended September 30, 2024 and 2023 was $136,601 and $398,727, respectively.

During the nine months ended September 30, 2024, the Company granted an aggregate of 3,075,000 qualified stock options to 5 of its employees. These options vest over a three-year or five-year period with the first vesting on the first anniversary of the date of grant and expiration at ten-year anniversary for all grants. The exercise price for these granted options was $0.04 per share. The options issued during the nine months ended September 30, 2024 have a fair value of $65,364, as estimated on the date of issue using the Black-Scholes options pricing model with the following weighted-average assumptions: risk free interest rate of 4.21% to 4.66%, expected dividend yield rate of 0%, expected volatility of 72.94% to 78.11% and an expected life between 5 and 7 years.

Restricted Stock Units outstanding as of September 30, 2024, and changes during the nine months ended September 30, 2024, were as follows:

Non-Vested Restricted Stock Units	Number of restricted stock units			Weighted average grant-date fair value
Outstanding at December 31, 2023		7,000,000		$	0.04
Granted		—
Vested and Exercised		(1,750,000	)		0.04
Forfeited / Cancelled		—
Outstanding at September 30, 2024		5,250,000		$	0.04

As of September 30, 2024, there was $85,637 of unrecognized compensation expense related to Restricted Stock Units that will be recognized over a weighted-average period of 1.27 years.

Table of Contents

Preferred Stock

At September 30, 2024, there were 4,063 shares of the Series C Preferred Stock outstanding with a mandatory redemption date of February 2027 at $1,000 per share in either cash or shares of common stock, at the option of the holder. On September 25, 2024, with the approval of a majority of holders of the Series C Preferred Stock, the mandatory redemption date of the Series C Preferred was extended for an additional two years to February 28, 2027. Holders of the Series C Preferred Stock do not have any voting rights except as required by law and in connection with certain events as set forth in the Statement of Designation of the Series C Preferred Stock. The Series C Preferred Stock accrues dividends at a rate of 6% per annum, payable annually on February 17th of each year. The Series C Preferred Stock are convertible at the option of the holders at any time into shares of the Company common stock at an initial conversion price equal to $0.10 per share, subject to adjustment. If the volume-weighted average closing price of the Company’s common stock over a period of 90 consecutive trading days is greater than $0.25 per share, the Company may redeem all or any portion of the outstanding Series C Preferred Stock at the original purchase price per share plus any accrued and unpaid dividends, payable in shares of common stock.

During the nine months ended September 30, 2024 and 2023, dividends paid to holders of the Series C Preferred Stock totaled $243,030 and $243,780 respectively. Some holders of the Series C Preferred Stock elected to settle their dividend payments with shares of the Company’s common stock in lieu of cash. For the nine months ended September 30, 2024 and 2023, the Company issued an aggregate of 1,808,400 and 2,266,500 shares of common stock, respectively, in lieu of dividend payments in the aggregate of $90,420 and $90,660, respectively, with the remaining dividend payable settled in cash of $152,610 and $153,120, respectively.

Table of Contents

(6) Debt

In December 2013, the Company entered into a promissory note agreement with its then Chairman of the Board and one of our major shareholders, pursuant to which we borrowed $500,000 (the 2013 Promissory Note). The 2013 Promissory Note is secured and bears interest at 6% per annum and was originally due June 30, 2014. According to the terms of the 2013 Promissory Note, at any time, the lenders may settle any or all of the principal and accrued interest with shares of our common stock. In December 2019, the 2013 Promissory Note was modified to extend the maturity date to December 31, 2021, with all remaining terms unchanged. In January 2022, the 2013 Promissory Note was modified to extend the maturity date to December 31, 2023, with all remaining terms unchanged. In February 2024, the 2013 Promissory Note was modified to extend the maturity date to March 31, 2026, with all remaining terms unchanged. At September 30, 2024, accrued interest payable on the 2013 Promissory Note was $324,234.

In April 2018, the Company borrowed $120,000 from its then Chief Executive Officer and Chairman of the Board pursuant to a promissory note (the 2018 Promissory Note). The 2018 Promissory Note accrues interest at 6% per annum, which is payable upon maturity of the 2018 Promissory Note. The 2018 Promissory Note was originally unsecured and originally matured on August 1, 2018. At any time, the holder of the 2018 Promissory Note may elect to have any or all of the principal and accrued interest settled with shares of our common stock based on the average price of the shares over the previous 20 trading days. In June 2018, the 2018 Promissory Note was modified to extend the maturity date to March 31, 2019 with all other provisions remaining unchanged. In February 2019, the 2018 Promissory Note was modified to extend the maturity date to July 31, 2019 with all other provisions remaining unchanged. In July 2019, the 2018 Promissory Note was modified to extend the maturity date to January 31, 2020 with all other provisions remaining unchanged. In December 2019, the 2018 Promissory Note was modified to extend the maturity date to December 31, 2021, the note was also modified to become secured by company assets, with all other provisions remaining unchanged. In December 2021, the 2018 Promissory Note was modified to extend the maturity date to December 31, 2023, with all remaining terms unchanged. In December 2023, the 2018 Promissory Note was modified to extend the maturity date to January 31, 2025, with all remaining terms unchanged. In February 2024, the 2018 Promissory Note was modified to extend the maturity date to March 31, 2026, with all remaining terms unchanged. At September 30, 2024, accrued interest on the 2018 Promissory Note totaled $46,370.

In December 2019 and February 2020, the Company borrowed an aggregate of $1,000,000 from four of the Company’s major shareholders pursuant to a promissory note (the 2019 Promissory Note). The 2019 Promissory Note bears an interest rate of 4% annually and was originally due December 31, 2022. According to the terms of the 2019 Promissory Note, at any time, the lenders may settle any or all of the principal and accrued interest with shares of the Company’s common stock based on the average closing price of the Company’s common stock for the 20 days preceding the payment. In connection with the 2019 Promissory Note, the lenders were issued warrants totaling 30,000,000 warrants to purchase shares of the Company’s common stock at $0.045 per share (the Class O Warrants). The fair value of these Class O Warrants issued totaled $446,079 and was recorded as a debt discount and was amortized over the life of the 2019 Promissory Note. The Company calculated a beneficial conversion feature of $315,643 which was accreted to interest expense over the life of the 2019 Promissory Note. In December 2022, the 2019 Promissory Note was modified to extend the maturity date to December 31, 2024, with all remaining terms unchanged. In February 2024, the 2019 Promissory Note was modified to extend the maturity date to March 31, 2026, with all remaining terms unchanged. At September 30, 2024, the accrued interest on the 2019 Promissory Note totaled $189,131.

In June 2023, the Company executed an asset purchase agreement with AMICI, Inc. for purchase of medical devices and related assets and intellectual property rights. As part of the asset purchase agreement, the Company entered a promissory agreement for $427,100. According to the terms of the agreement, the Company is to pay the seller a minimum of $10,000 per month for a period of 45 months. The amount due is not subject to interest until the 25th month after the anniversary of the closing of the agreement. At September 30, 2024, the balance of this agreement was $302,100.

Table of Contents

(7) Commitments and Contingencies

Dependence on Third Parties

The production of Cobalt-60 is dependent upon the U.S. Department of Energy (DOE), and its prime operating contractor, which controls the Advanced Test Reactor (ATR) and laboratory operations at the ATR located outside of Idaho Falls, Idaho. In October 2014, the Company signed a ten-year contract with the DOE for the irradiation of cobalt targets for the production of cobalt-60. The Company is able to purchase cobalt targets for a fixed price per target with an annual 5% escalation in price. The contract term is October 1, 2014 through September 30, 2024. The Company and DOE have determined that supply will continue for the next 18-24 months under the 2014 agreement. The Company and DOE are currently working on an extension to this contract for future irradiation and supply of Cobalt. The DOE may end the contract if it determines termination is necessary for the national defense, security or environmental safety of the United States.

Sales of our most predominant Theranostics Products are dependent upon a few key suppliers. An interruption in production by any of these individual suppliers could have an immediate negative impact upon Theranostics Products sales until material could be purchased from alternate suppliers including obtaining regulatory approval to use material from alternative suppliers if necessary. The Company has identified additional suppliers in 2024, with anticipated regulatory approvals for those suppliers in 2025 and continue to search for additional means to produce and procure certain critical isotopes.

The Nuclear Medicine Reference and Calibration Standard products sold by the Company are dependent upon certain radioisotopes that are supplied to the Company through agreements with several suppliers. A loss of any of these suppliers could adversely affect operating results by causing a delay in production or a possible loss of sales. In nine months ended September 30, 2024, there was a global shortage of Cobalt-57 isotopes, a key isotope for this business segment that resulted in significant lost sales. The Company has added additional suppliers in 2024 and continue to search for additional means to produce and procure certain critical isotopes, including through our Chinese Joint Venture. In the third quarter of 2024 our main supply of Cobalt-57 was restored. We have seen a sharp decrease in cancellations of orders, and we have been able to process through our backlogged orders. We expect increased revenue due to this backlog catch-up throughout the remainder of 2024 and potentially into the first quarter of 2025 as our global isotope supply chain has normalized.

Contingencies

Because all the Company’s business segments involve the handling or use of radioactive material, the Company is required to have an operating license from the NRC and specially trained staff to handle these materials. The Company has amended this operating license numerous times to increase the amount of material permitted within the Company’s facility. Although this license does not currently restrict the volume of business operations performed or projected to be performed in the upcoming year, additional processing capabilities and license amendments could be implemented that would permit the processing of other reactor-produced radioisotopes by the Company. The financial assurance required by the NRC to support this license has been provided for with a surety bond held with North American Specialty Insurance Company which is supported by a restricted money market account held with Merrill Lynch. In the nine months ended September 30, 2024 the Company funded an additional $484,000 to this restricted money market account. At September 30, 2024, the balance of this account was $1,414,777.

On February 8, 2024, the Company entered into a definitive agreement to sell all of our assets related to the Fluorine Products segment and the Planned Uranium De-Conversion Facility, including the Lea County land, for an aggregate purchase price of approximately $12.5 million, subject to conditions. The Company expects to close the agreement within 12 to 24 months of signing. Closing is contingent on various conditions being met, including approvals and agreements by the NRC and other third parties. The Company has not recorded the value of this property as an asset and will not do so until such time that material changes to or sufficient progress on the project has been made to meet the Company’s obligations under the agreements for permanent transfer of the title.

Table of Contents

(8) Revenue Recognition

Revenue from Product Sales

The following tables present the Company’s revenue disaggregated by business segment and geography, based on management’s assessment of available data:

	Three Months Ended September 30, 2024									Three Months Ended September 30, 2023
			Outside		Total		% of Total					Outside		Total		% of Total
	U.S.		U.S.		Revenues		Revenues			U.S.		U.S.		Revenues		Revenues
Theranostics Products	$	2,091,564	$	91,633	$	2,183,197		56	%	$	1,413,722	$	121,176	$	1,534,898		53	%
Cobalt Products		814,845		—		814,845		21	%		289,333		39,645		328,978		11	%
Nuclear Medicine Products		643,107		283,295		926,402		23	%		832,279		222,401		1,054,680		36	%
Medical Devices Products		—		—		—		0	%		—		—		—		0	%
Fluorine Products		—		—		—		0	%		—		—		—		0	%
	$	3,549,516	$	374,928	$	3,924,444		100	%	$	2,535,334	$	383,222	$	2,918,556		100	%

	Nine Months Ended September 30, 2024									Nine Months Ended September 30, 2023
			Outside		Total		% of Total					Outside		Total		% of Total
	U.S.		U.S.		Revenues		Revenues			U.S.		U.S.		Revenues		Revenues
Theranostics Products	$	5,742,108	$	515,302	$	6,257,410		63	%	$	4,644,151	$	389,186	$	5,033,337		55	%
Cobalt Products		1,618,812		22,200		1,641,012		16	%		826,886		108,658		935,544		10	%
Nuclear Medicine Products		1,473,309		626,404		2,099,713		21	%		2,436,391		714,984		3,151,375		35	%
Medical Devices Products		—		—		—		0	%		—		—		—		0	%
Fluorine Products		—		—		—		0	%		—		—		—		0	%
	$	8,834,229	$	1,163,906	$	9,998,135		100	%	$	7,907,428	$	1,212,828	$	9,120,256		100	%

The Company’s revenue consists primarily of distribution of theranostics including sodium iodide I-131 drug product, calibration and reference standards manufactured for use in the nuclear medicine industry, and cobalt source manufacturing. With the exception of certain unique products, the Company’s normal operating cycle is considered to be one year. Due to the time required to produce some cobalt products, the Company’s operating cycle for those products is considered to be two to three years. Accordingly, preliminary payments received on cobalt contracts where shipment has not taken place have been recorded as unearned revenue on the Company’s condensed consolidated balance sheets and classified under current or long-term liabilities, depending upon estimated ship dates. For the nine months ended September 30, 2024, the Company reported current unearned revenue of $656,656. For the period ended December 31, 2023, the Company reported current unearned revenue of $932,682. These unearned revenues will be recognized as revenue in the periods during which the cobalt shipments take place.

Contract Balances

The Company records a receivable when it has an unconditional right to receive consideration after the performance obligations are satisfied. As of September 30, 2024, and December 31, 2023, accounts receivable totaled $1,471,917 and $1,469,298, respectively. For the nine months ended September 30, 2024, the Company did not incur material impairment losses with respect to its receivables.

(9) Leases

The Company leases office and warehouse space under operating leases. Right-of-use assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent its obligation to make lease payments under the lease. Operating lease, right-of-use assets, and liabilities are recognized at the lease commencement date based on the present value of lease payments over the reasonably certain lease term. The implicit rates with the Company’s operating leases are generally not determinable and the Company uses its incremental borrowing rate at the lease commencement date to determine the present value of its lease payments. The determination of the Company’s incremental borrowing rate requires judgement. The company determines its incremental borrowing rate for each lease using its then-current borrowing rate. Certain of the Company’s leases include options to extend or terminate the lease. The Company establishes the number of renewal options periods used in determining the operating lease term based upon its assessment at the inception of the operating lease. The option to renew the lease may be automatic, at the option of the Company, or mutually agreed to between the landlord and the Company. Once the facility lease term has begun, the present value of the aggregate future minimum lease payments is recorded as a right-of-use asset. Lease expense is recognized on a straight-line basis over the term of the lease.

Table of Contents

	Nine Months Ended September 30,
	2024			2023
Operating lease costs	$	215,331		$	215,331
Short-term operating lease costs		5,400			5,400
Financing lease expense:
Amortization of right-of-use assets		2,304			5,281
Interest on lease liabilities		92			339
Total financing lease expense		2,396			5,620
Total lease expense	$	223,127		$	226,351

Right-of-use assets obtained in exchange for new operating lease liabilities	$	—		$	—
Right-of-use assets obtained in exchange for new financing lease liabilities	$	—		$	—

Weighted-average remaining lease term (years) - operating leases		10.3			11.3
Weighted-average remaining lease term (years) - financing leases		0.2			1.2
Weighted-average discount rate - operating leases		6.75	%		6.75	%
Weighted-average discount rate - financing leases		6.75	%		6.75	%

The future minimum payments under these operating lease agreements are as follows:

	Operating Leases			Financing Leases
2024 (excluding the nine-months ended September 30, 2024)	$	71,777		$	533
2025		287,108			—
2026		287,108			—
2027		287,108			—
2028		287,108			—
Thereafter		1,738,084			—
Total minimum lease obligations		2,958,293			533
Less-amounts representing interest		(830,706	)		(5	)
Present value of minimum lease obligations		2,127,587			528
Current maturities		(148,020	)		(528	)
Lease obligations, net of current maturities	$	1,979,567		$	—

Table of Contents

(10) Segment Information

In 2024, the Company has five reportable segments which include: Theranostics Products, Cobalt Products, Nuclear Medicine Standards, Medical Device Products, and Fluorine Products.

Information regarding the operations and assets of these reportable business segments is contained in the following table:

	Three months ended September 30,				Nine months ended September 30,
Sale of Product	2024		2023		2024		2023
Theranostics Products	$	2,183,197	$	1,534,898	$	6,257,410	$	5,033,337
Cobalt Products		814,845		328,978		1,641,012		935,544
Nuclear Medicine Standards		926,402		1,054,680		2,099,713		3,151,375
Medical Device Products		—		—		—		—
Fluorine Products		—		—		—		—
Total Segments		3,924,444		2,918,556		9,998,135		9,120,256
Corporate revenue		—		—		—		—
Total Consolidated	$	3,924,444	$	2,918,556	$	9,998,135	$	9,120,256

	Three months ended September 30,				Nine months ended September 30,
Depreciation and Amortization	2024		2023		2024		2023
Theranostics Products	$	7,785	$	5,674	$	22,528	$	19,498
Cobalt Products		13,689		13,142		41,103		39,118
Nuclear Medicine Standards		30,429		28,353		91,848		86,462
Medical Device Products		—		—		—		—
Fluorine Products		20,345		28,969		78,285		86,909
Total Segments		72,248		76,138		233,764		231,987
Corporate depreciation and amortization		28,541		10,493		67,447		30,042
Total Consolidated	$	100,789	$	86,631	$	301,211	$	262,029

	Three months ended September 30,						Nine months ended September 30,
Segment Income (Loss)	2024			2023			2024			2023
Theranostics Products	$	1,289,266		$	687,413		$	3,474,120		$	2,171,980
Cobalt Products		(51,805	)		90,713			(18,806	)		118,108
Nuclear Medicine Standards		39,519			74,716			(328,743	)		213,229
Medical Device Products		(167,451	)		—			(279,801	)		—
Fluorine Products		(26,095	)		(27,870	)		(30,941	)		(79,004	)
Total Segments		1,083,434			824,972			2,815,829			2,424,313
Corporate loss		(933,183	)		(1,173,577	)		(3,053,074	)		(3,184,274	)
Net Income	$	150,251		$	(348,605	)	$	(237,245	)	$	(759,961	)

	Three months ended September 30,				Nine months ended September 30,
Expenditures for Segment Assets	2024		2023		2024		2023
Theranostics Products	$	—	$	—	$	146,295	$	—
Cobalt Products		39,799		—		39,799		6,165
Nuclear Medicine Standards		—		484,107		49,038		487,237
Medical Device Products		—		—		—		—
Fluorine Products		—		—		—		—
Total Segments		39,799		484,107		235,132		493,402
Corporate purchases		4,216		—		32,175		57,227
Total Consolidated	$	44,015	$	484,107	$	267,307	$	550,629

	September 30,		December 31,
Segment Assets	2024		2023
Theranostics Products	$	1,117,755	$	849,351
Cobalt Products		192,013		274,513
Nuclear Medicine Standards		2,782,813		2,986,458
Medical Device Products		552,100		552,100
Fluorine Products		4,901,833		4,980,118
Total Segments		9,546,514		9,642,540
Corporate assets		7,156,925		7,262,547
Total Consolidated	$	16,703,439	$	16,905,087

Table of Contents

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

This Quarterly Report on Form 10-Q (the “Quarterly Report”) contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical fact, including statements regarding industry prospects and future results of operations or financial position, made in this Quarterly Report are forward-looking statements. Words such as “anticipates,” “believes,” “should,” “expects,” “future,” “intends” and similar expressions identify forward-looking statements. Forward-looking statements reflect management’s current expectations, plans or projections, and are inherently uncertain. Actual results could differ materially from management's expectations, plans or projections. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this Quarterly Report. Certain risks and uncertainties that could cause our actual results to differ significantly from management’s expectations are described in the risk factors set forth in our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 filed with the Securities and Exchange Commission (SEC) on March 29, 2024 and in the other reports we file with the SEC. These factors describe some but not all of the factors that could cause actual results to differ significantly from management’s expectations. We undertake no obligation to update any forward-looking statements to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events. Readers are urged, however, to review the risks and other factors set forth in the reports that we file from time to time with the SEC.

International Isotopes Inc., its wholly-owned subsidiaries (including RadQual, LLC, TI Services, LLC, RadVent, LLC, and Radnostix, LLC) (collectively, the "Company", "we", "our", or "us") manufacture a full range of nuclear medicine calibration and reference standards, manufacture a range of cobalt products, and distribute sodium iodide I-131 as a generic drug. We own 100% interest of RadQual, LLC (RadQual), a global supplier of molecular imaging quality control and calibration devices. As TI Services, LLC is a 50/50 joint venture between the Company and RadQual, TI Services, LLC is also a wholly-owned subsidiary of the Company.

Theranostics Products. Our Theranostics Products segment (formerly called Radiochemical Products) includes production and distribution of our FDA approved generic sodium iodide I-131 drug product for the treatment of hyperthyroidism and carcinoma of the thyroid. This segment also includes distribution of certain other theranostic APIs, radiochemical products, and contract manufacturing of radiopharmaceutical products for our customers. Additionally, this segment includes the Theranostics Products segment of our Radnostix China Joint Venture.

Cobalt Products. Our Cobalt Products segment includes the production of bulk cobalt (cobalt-60), fabrication of cobalt capsules for radiation therapy and various industrial applications, and recycling of expended cobalt sources. We are the only company in the U.S. that can provide all these unique services. There has been a significant increase in regulation by the Nuclear Regulatory Commission (NRC) in recent years that has created a significant barrier to new entrants into this market. The Company has a contract in place with the U.S. Department of Energy (DOE) for the production of high specific activity cobalt in the Advanced Test Reactor (ATR) in Idaho. This agreement will be in effect until October 2024.

Nuclear Medicine Standards. Our Nuclear Medicine Standards segment consists of the manufacture of sources and standards, including those associated with Single Photon Emission Computed Tomography (SPECT) and Positron Emission Tomography (PET) imaging. These sources are used for indication of patient positioning for SPECT imaging, SPECT camera operational testing, and calibration of dose measurement equipment. Revenue from nuclear medicine products includes consolidated sales from TI Services, LLC (TI Services), a 50/50 joint venture that we formed with RadQual in December 2010 to distribute our products, as well as sales from RadQual. Our nuclear medicine standards products include a host of specially designed items used in the nuclear medicine industry. In addition to the manufacture of these products, we have developed a complete line of specialty packaging for the safe transport and handling of these products as well as manufacturing of industrial calibration & reference sources made by the Company, distribution of 3^rd Party industrial calibration & reference sources, and the sale of bulk radioisotopes.

Medical Devices. A new reportable business segment starting in 2024. While we have not yet commercialized any medical devices, we have invested in this segment throughout 2023 and 2024 and anticipate additional investments for the remainder of 2024 with commercialization of products starting later in 2024. In June 2023, we acquired several medical devices with related assets and intellectual property rights from AMICI, Inc. We have been working on start-up of manufacturing of the Swirler® and Tru-Fit™ Mouthpiece assets under the branding of RadVent. Additionally, we also have investments in a joint venture arrangement for the startup of our EasyFill Automated Iodine Capsule System. We also plan to commercialize 3^rd party medical devices and accessories related to the radiopharmaceutical and theranostics spaces and provide engineering, installation, and preventative maintenance and services related to those medical devices.

Fluorine Products. We established the Fluorine Products segment in 2004 in conjunction with the development and operation of the proposed depleted uranium de-conversion facility in Lea County, New Mexico. Near the end of 2013, due to changes in the nuclear industry, we placed further engineering work for this project on hold. On February 8, 2024, we entered into a definitive agreement to sell all of our assets related to the Fluorine Products segment and the Planned Uranium De-Conversion Facility, for an aggregate purchase price of approximately $12.5 million, subject to conditions. We expect to close the agreement within 12 to 24 months of signing. Closing is contingent on various conditions being met, including approvals and agreements by the NRC and other third parties.

Revenue for the three months ended September 30, 2024 was $3,924,444 as compared to $2,918,556 for the same period in 2023, an overall increase of $1,005,888, or approximately 34%. This increase in revenue was the result of increased revenues in our Theranostics Products and Cobalt Products partially offset by decreased revenue in our Nuclear Medicine Standards segment due to a global shortage of Cobalt-57 isotope during the period, as discussed in more detail below.

The following table presents a period-to-period comparison of total revenue by segment for the three months ended September 30, 2024 and 2023:

The following table presents cost of sales and gross profit data for each of our business segments for the three months ended September 30, 2024 and September 30, 2023:

Operating expense increased approximately 8% to $2,269,823 for the three months ended September 30, 2024, from $2,102,128 for the same period in 2023. This increase of $167,695 is due to a $230,000 waste disposal expense included in General, Administrative, and Consulting Expenses in three months ended September 30, 2024 with no such expense in the same period in 2023. General, Administrative, and Consulting Expenses increased 28% due to building out the Medical Device segment as well as waste disposal expense. The increase of 12% in Research and Development cost is due to increased expenses related to product development during the three months ended September 30, 2024, as compared to the same period in 2023.

The following table presents a comparison of total operating expenses for the three months ended September 30, 2024 and 2023:

Interest expense for the three months ended September 30, 2024 was $81,884, compared to $82,346 for the same period in 2023. This is a decrease of $462, or approximately 1%. Interest expense includes dividends accrued on our Series C Preferred Stock. As discussed below, we issued Series C Preferred Stock in February 2017 and May 2017. For the three months ended September 30, 2024 and 2023, we accrued dividends payable of $60,945 in each period, which have been recorded as interest expense. See Note 7 “Debt” to our unaudited consolidated financial statements in this Quarterly Report for additional information about our indebtedness and the associated interest expense.

On September 25, 2024, with the approval of a majority of holders of the Series C Preferred Stock, the mandatory redemption date of the Series C Preferred was extended for an additional two years to February 28, 2027.

We had net income of $150,251 for the three months ended September 30, 2024 compared to net loss of $348,605 for the same period in 2023. This increase in net income of $498,856 that is largely the result of increased revenue in our Theranostics Products and Cobalt Products segments and increased gross profit percentages partially offset by the decrease in revenue in our Nuclear Medicine Standards Products segment coupled with continued investment in the start-up of our Medical Device Products segment for the three months ended September 30, 2024, as compared to the same period in 2023.

Theranostics Products. Revenue from the sale of theranostics products for the three months ended September 30, 2024 was $2,183,197, compared to $1,534,898 for the same period in 2023. This is an increase of $648,299, or approximately 42% during the three months ended September 30, 2024. The increase is the result of continued increased sales of our generic sodium iodide I-131 drug product. We expect continued sales growth for our Theranostics products going forward, primarily from the sale of our generic sodium iodide I-131 drug product and new sales of theranostic API product

Gross profit of theranostics products for the three months ended September 30, 2024 was $1,606,064, compared to $998,061 for the same period in 2023, and gross profit percentages were approximately 74% and 65% for the three months ended September 30, 2024 and 2023, respectively. This increased gross profit percentage was the result of better pricing for our raw material isotope and more efficient utilization of this raw material. Cost of sales for theranostics products increased to $577,133 for the three months ended September 30, 2024, as compared to $536,837 for the same period in 2023. This is an increase of $40,296, or approximately 8%, and was the result of the increase in revenue. Operating expense for this segment increased to $316,798 for the three months ended September 30, 2024, compared to $310,648 for the same period in 2023. This in an increase in operating expense of $6,150, or approximately 2%. This segment reported net income of $1,289,266 for the three months ended September 30, 2024, as compared to net income of $687,413 for the same period in 2023. The increase in net income of $601,853 is the result of increases in revenue and increased gross profit percentage.

Cobalt Products. Revenue from the sale of cobalt products for the three months ended September 30, 2024 was $814,845, compared to $328,978 for the same period in 2023. This represents an increase of $485,867, or approximately 148%. The increase was primarily due to the timing of cobalt sealed source manufacturing sales. Large value sales of high activity cobalt sources occur at various times throughout the year. Frequently the timing of these sales can have a significant impact on period comparisons.

Nuclear Medicine Standards. Revenue from nuclear medicine products for the three months ended September 30, 2024, was $926,402, compared to $1,054,680 for the same period in 2023. This represents a decrease in revenue of $128,278, or approximately 12%. The decrease is due to a global shortage of Cobalt-57 isotope during the three months ended September 30, 2024, which began in January of 2024. Due to this shortage of raw material and our inability to deliver products, we experienced extraordinary rates of cancellations of orders throughout FY2024, causing a loss of revenue of more than $300,000 during the nine months ended September 30, 2024. In the third quarter of 2024 our supply of Cobalt-57 was restored, we have seen a sharp decrease in cancellations as we have been able to process backlogged orders. We expect an increase in revenue as we catch up on backlogged orders throughout the remainder of 2024 and into the first quarter of 2025 as our global isotope supply chain has been normalized.

Cost of sales for our nuclear medicine standards segment for the three months ended September 30, 2024, was $435,048, as compared to $470,130 for the same period in 2023. The decrease in cost of sales in the period-to-period comparison of $35,082, or 7%, was due to decreased revenue during the three-month period ended September 30, 2024, as compared to the same period in 2023. Gross profit for our nuclear medicine standards segment for the three months ended September 30, 2024 was $491,354 compared to $584,550 for the same period in 2023. This is a decrease in gross profit of $93,196, or approximately 16%.

Operating expense for this segment for the three months ended September 30, 2024 decreased to $451,835, from $509,834 for the same period in 2023. This is a decrease of $57,999, or approximately 11%, and is the result of the decreased sales activity in the segment. Net income for this segment for the three months ended September 30, 2024 was $39,519, compared to a net income of $74,716 for the same period in 2023. This is a decrease in net income of $35,197 and is the result of decreased revenue.

Medical Device Products. For the three months ended September 30, 2024 and September 30, 2023, we had no revenue for our Medical Device Products segment.

Operating expense for this segment for the three months ended September 30, 2024 was $167,451 with no operating expenses in the same period in 2023. Expenses include costs for labor, professional services, and research and development related to the startup of this new business segment as no commercial activities have begun.

During the three months ended September 30, 2024, we incurred $26,095 of expenses related to maintenance of plans, designs, and other assets for a proposed de-conversion facility, as compared to $27,870 for the same three-month period in 2023.

On February 8, 2024, we entered into a definitive agreement to sell all of our assets related to the Fluorine Products segment and the Planned Uranium De-Conversion Facility. We expect to close the agreement within 12 to 24 months of signing. Closing is contingent on various conditions being met, including approvals and agreements by the NRC and other third parties. Upon closing of this agreement, the costs of maintenance for the assets in this segment would not continue. With no assets nor operating activities, this business segment would be phased out.

Revenue for the nine months ended September 30, 2024 was $9,998,135 as compared to $9,120,256 for the same period in 2023, an overall increase of $877,879, or approximately 10%. This increase in revenue was the result of increased revenues in our Theranostics Products and Cobalt Products partially offset by decreased revenue in our Nuclear Medicine Standards segment due to a global shortage of Cobalt-57 isotope, as discussed in more detail below.

The following table presents cost of sales and gross profit data for each of our business segments for the nine months ended :

Operating expense increased approximately 8% to $6,599,765 for the nine months ended September 30, 2024, from $6,100,809 for the same period in 2023. This increase of $498,956 is due to a 20% increase in General, Administrative, and Consulting Expenses and a 20% increase in Research and Development costs which was offset by a 3% decrease in Salaries and Contract Labor Expenses. The increase in General, Administrative, and Consulting Expenses is primarily the result of increased professional expenses for building out Medical Device segments and waste disposal expenses that occurred during the nine months ended September 30, 2024, as compared to the same period in 2023. We had one-time professional expenses of approximately $200,000 during the nine months ended September 30, 2024 related to legal consulting and root cause audits for NRC enforcement and settlement for a violation that occurred in 2022, and we had $230,000 of waste disposal expenses. The increase in Research and Development cost is due to increased expenses related to product development during the nine months ended September 30, 2024, as compared to the same period in 2023. Research and Development cost includes approximately $150,000 of legal fees related to one-time licensing and intellectual property expense in the three months ended September 30, 2024. The decrease in Salaries and Contract Labor Expenses is primarily due to decreased officer compensation.

Other income was $176,094 for the nine months ended September 30, 2024 as compared to $123,803 for the same period in 2023. This is an increase of $52,291, or approximately 42%, was due to an increase in miscellaneous income partially offset by $63,000 of other expense for NRC fines. We have taken extensive internal actions to mitigate the risk of any similar violations and penalties occurring again. These matters have been finalized with the NRC.

Interest expense for the nine months ended September 30, 2024 was $244,695, compared to $247,542 for the same period in 2023. This is a decrease of $2,847, or approximately 1%. Interest expense includes dividends accrued on our Series C Preferred Stock. As discussed below, we issued Series C Preferred Stock in February 2017 and May 2017. For the nine months ended September 30, 2024 and 2023, we accrued dividends payable of $151,008 for the nine months ended September 30, 2024 and 2023, which have been recorded as interest expense. See Note 7 “Debt” to our unaudited consolidated financial statements in this Quarterly Report for additional information about our indebtedness and the associated interest expense.

Our net loss for the nine months ended September 30, 2024, was $237,245 compared to net loss of $759,961 for the same period in 2023. This is a decrease in net loss of $522,716, or approximately 69% improvement, that is largely the result of increased revenue in our Theranostics Products and Cobalt Products segments and increased gross profit percentages partially offset by the decrease in revenue in our Nuclear Medicine Standards Products segment coupled with continued investment in the start-up of our Medical Device Products segment for the nine months ended September 30, 2024, as compared to the same period in 2023.

Theranostics Products. Revenue from the sale of theranostics products for the nine months ended September 30, 2024 was $6,257,410, compared to $5,033,337 for the same period in 2023. This is an increase of $1,224,073, or approximately 24% during the nine months ended September 30, 2024. The increase is the result of continued growth in sales of our generic sodium iodide I-131 drug product. We expect this sales growth to continue for our Theranostics products going forward, primarily from the sale of our generic sodium iodide I-131 drug product and new sales of theranostic API product.

Gross profit of theranostics products for the nine months ended September 30, 2024 was $4,498,675, compared to $3,269,100 for the same period in 2023, an increase of 38%. Gross profit percentages were approximately 72% and 65% for the nine months ended September 30, 2024 and 2023, respectively. Cost of sales for theranostics products decreased to $1,758,735 for the nine months ended September 30, 2024, as compared to $1,764,237 for the same period in 2023. The increase in gross profit percentage was primarily the result of increased utilization and decreased pricing for our raw material isotope. Operating expense for this segment decreased to $1,024,555 for the nine months ended September 30, 2024, compared to $1,097,120 for the same period in 2023. This decrease in operating expense of $72,565, or approximately 7% was primarily due to decreased labor costs. This segment reported net income of $3,474,120 for the nine months ended September 30, 2024, as compared to net income of $2,171,980 for the same period in 2023. The increase in net income of $1,302,140 or 60% is the result of increases in revenue, increased gross profit percentage, and decreased expenses.

Cobalt Products. Revenue from the sale of cobalt products for the nine months ended September 30, 2024 was $1,641,012, compared to $935,544 for the same period in 2023. This represents an increase of $705,468, or approximately 75%. The increase was primarily due to the timing of cobalt sealed source manufacturing sales and available of cobalt-60 raw material. Large value sales of high activity cobalt sources occur at various times throughout the year. Frequently the timing of these sales can have a significant impact on period comparisons.

Cost of sales for the nine months ended September 30, 2024, was $901,546, as compared to $456,280, for the same period in 2023. Gross profit for cobalt products for the nine months ended September 30, 2024 was $739,466 compared to $479,264 for the same period in 2023. This is an increase of $260,202 or approximately 54% and is attributable to increased revenue for the nine months ended September 30, 2024. Operating expense in this segment increased to $758,272 for the nine months ended September 30, 2024, from $361,156 for the same period in 2023. This is an increase of $397,116, or approximately 110%. This increase in operating expenses for the nine months ended September 30, 2024 is primarily the result of increased waste disposal costs including a $230,000 waste disposal expense that occurred during the nine months ended September 30, 2024 as compared to the same period in 2023. Our net loss for cobalt products was $18,806 for the nine months ended September 30, 2024, as compared to a net income of $118,108 for the same period in 2023. The decrease in net income of $136,914, or approximately 116%, was attributable to a $230,000 waste disposal expense partially offset by increased revenue and gross profit.

Nuclear Medicine Standards. Revenue from nuclear medicine products for the nine months ended September 30, 2024, was $2,099,713, compared to $3,151,375 for the same period in 2023. This represents a decrease in revenue of $1,051,662, or approximately 33%. The decrease is due to a global shortage of Cobalt-57 isotope during the nine months ended September 30, 2024 beginning in January 2024. Due to this shortage of raw material and inability to deliver products, we experienced extraordinary rates of cancellations of orders throughout FY2024, causing an overall loss of revenue of more than $300,000 during the nine months ended September 30, 2024. In the third quarter of 2024 our main supply of Cobalt-57 was restored. We have seen a sharp decrease in cancellations of orders, and we have been able to process through our backlogged orders. We expect increased revenue due to this backlog catch-up throughout the remainder of 2024 and potentially into the first quarter of 2025 as our global isotope supply chain has normalized.

Medical Device Products. For the nine months ended September 30, 2024 and September 30, 2023, we had no revenue for our Medical Device Products segment as no commercial activities have begun.

Operating expense for this segment for the nine months ended September 30, 2024 was $279,801 with no operating expenses in the same period in 2023. Expenses include costs for labor, professional services, and research and development related to the startup of this new business segment.

During the nine months ended September 30, 2024, we incurred $80,941 of expenses related to maintenance of plans, designs, and other assets for a proposed de-conversion facility, as compared to $79,004 for the same nine-month period in 2023.

During the nine months ended September 30, 2024, we received other income of $50,000 for payments related to the DUF6 Asset Sale. As compared to $7,920 of other income for the same nine-month period in 2023.

This decrease in cash and cash equivalents at period end is mainly due to a $484,000 transfer from cash and cash equivalents to restricted cash to fund an increase to our decommissioning funding plan. Total cash, cash equivalents, and restricted cash increased by $218,867 for the nine months ended September 30, 2024.

Inventories at September 30, 2024 totaled $845,041, and inventories at December 31, 2023 totaled $927,111. Our inventory consists of work in process material for our Theranostics Products, Cobalt Products, Nuclear Medicine Products, and Medical Device Products segments. The decrease in revenue in the nine months ended September 30, 2024 was mostly due to decreased inventory of Cobalt-57 raw material and Cobalt-57 finished goods due to the global shortage of Cobalt-57.

In February 2024, we paid our annual dividend on the Series C Preferred Stock. Dividends payable totaled $243,780 at that time. Some holders of the Series C Preferred Stock elected to settle their dividend payments with shares of the Company’s common stock in lieu of cash. The Company issued 1,808,400 shares of common stock in lieu of a dividend payment of $90,420. The remaining $153,360 of dividend payable was settled with cash.

We expect that cash from operations, cash raised via equity financing, and our current cash balance will be sufficient to fund operations for the next twelve months. Our future liquidity and capital funding requirements will depend on numerous factors, including commercial relationships, technological developments, market factors, available credit, and preferred stock shareholders. There is no assurance that additional capital and financing will be available on acceptable terms to the Company or at all.

In December 2013, we entered into a promissory note agreement with our then Chairman of the Board and one of our major shareholders, pursuant to which we borrowed $500,000 (the 2013 Promissory Note). The 2013 Promissory Note is secured and bears interest at 6% per annum and was originally due June 30, 2014. According to the terms of the 2013 Promissory Note, at any time, the lenders may settle any or all of the principal and accrued interest with shares of our common stock. In June 2014, pursuant to a modification, the maturity date was extended to December 31, 2017. In February 2017, the 2013 Promissory Note was further modified to extend the maturity date to December 31, 2020, with all remaining terms unchanged. In December 2019, the 2013 Promissory Note was further modified to extend the maturity date to December 31, 2021, with all remaining terms unchanged. In January 2022, the 2013 Promissory Note was modified to extend the maturity date to December 31, 2023, with all remaining terms unchanged. In February 2024, the 2013 Promissory Note was modified to extend the maturity date to March 31, 2026, with all remaining terms unchanged. At September 30, 2024, accrued interest payable on the 2013 Promissory Note was $324,234.

In April 2018, we borrowed $120,000 from our Chief Executive Officer and Chairman of the Board pursuant to a promissory note (the 2018 Promissory Note). The 2018 Promissory Note accrues interest at 6% per annum, which is payable upon maturity of the 2018 Promissory Note. The 2018 Promissory Note was originally unsecured and originally matured on August 1, 2018. At any time, the holder of the 2018 Promissory Note may elect to have any or all of the principal and accrued interest settled with shares of our common stock based on the average price of the shares over the previous 20 trading days. Pursuant to an amendment to the 2018 Promissory Note in June 2018, the maturity date was extended to March 31, 2019 with all other provisions remaining unchanged. Pursuant to a second amendment to the 2018 Promissory Note in February 2019, the maturity date was extended to July 31, 2019 with all other provisions remaining unchanged. Pursuant to a third amendment to the 2018 Promissory Note in July 2019, the maturity date was extended to January 31, 2020 with all other provisions remaining unchanged. Pursuant to a fourth amendment to the 2018 Promissory Note in December 2019, the maturity date was extended to December 31, 2021, the note was modified to become secured by company assets, with all other provisions remaining unchanged. In December 2021, the 2018 Promissory Note was modified to extend the maturity date to December 31, 2023, with all remaining terms unchanged. In December 2023, the 2018 Promissory Note was modified to extend the maturity date to January 31, 2025, with all remaining terms unchanged. In February 2024, the 2018 Promissory Note was modified to extend the maturity date to March 31, 2026, with all remaining terms unchanged. At September 30, 2024, accrued interest on the 2018 Promissory Note totaled $46,370.

In December 2019 and February 2020, we borrowed an aggregate of $1,000,000 from our Chief Executive Officer, Chairman of the Board, former Chairman of the Board, and one of our major shareholders pursuant to a promissory note (the 2019 Promissory Note). The 2019 Promissory Note bears an interest rate of 4% annually and was originally due December 31, 2022. According to the terms of the 2019 Promissory Note, at any time, the lenders may settle any or all of the principal and accrued interest with shares of the Company’s common stock based on the average closing price of the Company’s common stock for the 20 days preceding the payment. In December 2022, the 2019 Promissory Note was modified to extend the maturity date to December 31, 2024, with all remaining terms unchanged. In February 2024, the 2019 Promissory Note was modified to extend the maturity date to March 31, 2026, with all remaining terms unchanged. At September 30, 2024, the accrued interest on the 2019 Promissory Note totaled $189,131.

In June 2023, we executed an asset purchase agreement with AMICI, Inc. for purchase of medical devices and related assets and intellectual property rights. As part of the asset purchase agreement, we entered a promissory agreement for $427,100. According to the terms of the agreement, we are to pay the seller a minimum of $10,000 per month for a period of 45 months. The amount due is not subject to interest until the 25th month after the anniversary of the closing of the agreement. At September 30, 2024, the balance of this agreement was $302,100.

From time-to-time, management reviews and evaluates certain accounting policies that are considered to be significant in determining our results of operations and financial position.

A description of the Company’s critical accounting policies that affect the preparation of the Company’s financial statements is set forth in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, filed with the SEC on March 29, 2024.

We maintain disclosure controls and procedures as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the Exchange Act), that are designed to ensure that material information relating to us is made known to the officers who certify our financial reports and to other members of senior management and the Board of Directors. These disclosure controls and procedures are designed to ensure that information required to be disclosed in our reports that are filed or submitted under the Exchange Act are recorded, processed, summarized, and reported within the time periods specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is accumulated and communicated to our management, including our principal executive and principal financial officers, or persons performing similar functions, as appropriate, to allow timely decisions regarding required disclosure.

Management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness, as of September 30, 2024, of our disclosure controls and procedures. Based on that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of September 30, 2024.

There have been no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the quarter ended September 30, 2024 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

A discussion of legal matters is found in Note 7, “Commitments and Contingencies”, in the accompanying notes to the unaudited condensed consolidated financial statements included in Part I - Item 1. Financial Statements of this Quarterly Report.

There have been no material changes or updates to the risk factors previously disclosed in Item 1A. “Risk Factors” of our Annual Report on Form 10-K for the year ended December 31, 2023.

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		Page No.
PART I – FINANCIAL INFORMATION

Item 1.	Financial Statements
	Unaudited Condensed Consolidated Balance Sheets at September 30, 2024 and December 31, 2023	3
	Unaudited Condensed Consolidated Statements of Operations for the Three and Nine Months Ended September 30, 2024 and 2023	4
	Unaudited Condensed Consolidated Statements of Cash Flows for the Nine Months Ended September 30, 2024 and 2023	5
	Unaudited Condensed Consolidated Statement of Stockholder’s (Deficit) Equity for the Three and Nine Months Ended September 30, 2024 and 2023	6
	Notes to Unaudited Condensed Consolidated Financial Statements	8
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	19
Item 4.	Controls and Procedures	29

PART II – OTHER INFORMATION

Item 1.	Legal Proceedings	29
Item 1A.	Risk Factors	29
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	29
Item 5.	Other Information	29
Item 6.	Exhibits	30
Signatures		31

	Common stock
					Additional
	Shares		Common		Paid-in			Accumulated			Total
	Outstanding		Stock		Capital			Deficit			(Deficit) Equity
Balance, July 1, 2024		522,957,618	$	5,229,576	$	126,316,593		$	(127,717,355	)	$	3,828,814
Shares issued under employee stock purchase plan		147,527		1,475		2,287			—			3,762
Shares issued for issuance of RSUs		350,000		3,500		(3,500	)		—			—
Stock based compensation		—		—		52,201			—			52,201
Net (loss) income		—		—		—			150,251			150,251
Balance, September 30, 2024		523,455,145	$	5,234,551	$	126,367,581		$	(127,567,104	)	$	4,035,028

	Common stock
					Additional
	Shares		Common		Paid-in			Accumulated			Total
	Outstanding		Stock		Capital			Deficit			(Deficit) Equity
Balance, January 1, 2023		514,889,916	$	5,148,899	$	125,654,486		$	(126,460,843	)	$	4,342,542
Shares issued under employee stock purchase plan		279,534		2,795		4,332			—			7,127
Stock grant		343,560		3,436		(3,436	)		—			—
Stock in lieu of dividends on convertible preferred C		2,266,500		22,665		67,995			—			90,660
Shares issued for issuance of RSUs		1,971,028		19,710		(19,710	)		—			—
Stock based compensation		—		—		398,727			—			398,727
Net (loss) income		—		—		—			(759,961	)		(759,961	)
Balance, September 30, 2023		519,750,538	$	5,197,505	$	126,102,394		$	(127,220,804	)	$	4,079,095

	Common stock
					Additional
	Shares		Common		Paid-in			Accumulated			Total
	Outstanding		Stock		Capital			Deficit			(Deficit) Equity
Balance, July 1, 2023		517,941,366	$	5,179,414	$	125,944,357		$	(126,872,199	)	$	4,251,572
Shares issued under employee stock purchase plan		88,144		881		1,366			—			2,247
Shares issued for issuance of RSUs		1,721,028		17,210		(17,210	)		—			—
Stock based compensation		—		—		173,881			—			173,881
Net (loss) income		—		—		—			(348,605	)		(348,605	)
Balance, September 30, 2023		519,750,538	$	5,197,505	$	126,102,394		$	(127,220,804	)	$	4,079,095

3.4	Certificate of Amendment to Statement of Designation of the Series C Convertible Redeemable Preferred Stock International Isotopes Inc., dated December 28, 2022 (incorporated by reference to Exhibit 3.1 of the Company’s Current Report on Form 8-K filed December 28, 2022).

3.5	Certificate of Amendment to Statement of Designation of the Series C Convertible Redeemable Preferred Stock International Isotopes Inc., dated September 26, 2024 (incorporated by reference to Exhibit 3.1 of the Company’s Current Report on Form 8-K filed on October 2, 2024).

3.6	Bylaws (incorporated by reference to Exhibit 3.2 of the Company's Registration Statement on Form SB-2 filed on May 1, 1997 (Registration No. 333-26269)).

	For the three		For the three
	months ended		months ended
	September 30,		September 30,
Sale of Product	2024		2023		$ change			% change
Theranostics Products	$	2,183,197	$	1,534,898	$	648,299			42	%
Cobalt Products		814,845		328,978		485,867			148	%
Nuclear Medicine Standards		926,402		1,054,680		(128,278	)		-12	%
Medical Device Products		—		—		—			—	%
Fluorine Products		—		—		—			—	%
Total Consolidated	$	3,924,444	$	2,918,556	$	1,005,888			34	%

	For the nine		For the nine
	months ended		months ended
	September 30,		September 30,
Sale of Product	2024		2023		$ change			% change
Theranostics Products	$	6,257,410	$	5,033,337	$	1,224,073			24	%
Cobalt Products		1,641,012		935,544		705,468			75	%
Nuclear Medicine Standards		2,099,713		3,151,375		(1,051,662	)		-33	%
Medical Device Products		—		—		—			—	%
Fluorine Products		—		—		—			100	%
Total Consolidated	$	9,998,135	$	9,120,256	$	877,879			10	%

Date: November 12, 2024	International Isotopes Inc.


	By:	/s/ Shahe Bagerdjian
		Shahe Bagerdjian
		Chief Executive Officer


	By:	/s/ W. Matthew Cox
		W. Matthew Cox
		Chief Financial Officer