Termination of a Material Definitive Agreement As previously disclosed, on February 5, 2024, Westwater Resources, Inc. (the “Company”) and SK On Co., Ltd. (“SK On”) entered into a Products Procurement Agreement (the “Procurement Agreement”), pursuant to which SK On would purchase CSPG natural graphite anode products from the Company. On March 31, 2026, the Company received written notice from SK On informing the Company of SK On’s termination of the Procurement Agreement effective immediately.

Termination of a Material Definitive Agreement As previously disclosed, on July 17, 2024, Alabama Graphite Products, LLC (“AGP”), a wholly owned subsidiary of Westwater Resources, Inc. (the “Company” and together with AGP, the “Companies”) and FCA US LLC (“FCA”) entered into a Binding Offtake Agreement (the “Offtake Agreement”), pursuant to which FCA would purchase CSPG natural graphite anode products from AGP. On November 3, 2025, the Companies received written notice from FCA informing the…

Other Events. Westwater Resources, Inc. (“Westwater” or the “Company”) previously entered into an At the Market Offering Agreement, dated August 30, 2024 (the “ATM Agreement”), with H.C. Wainwright relating to the sale of shares of common stock, par value $0.001 per share (the “Common Stock”) from time to time, through an “at the market” offering as defined in Rule 415 promulgated under the Securities Act of 1933, as amended. On October 17, 2025, Westwater filed a prospectus supplement (the “…

Regulation FD Disclosure Preliminary Estimated Financial Results In connection with the Offering, the Company is providing preliminary estimated unaudited financial results for the three months ended June 30, 2025. The preliminary estimated unaudited financial results for the three months ended June 30, 2025 are attached hereto as Exhibit 99.1. The preliminary estimated unaudited financial results for the three months ended June 30, 2025 are based upon information available to the Company as…

Entry into a Material Definitive Agreement. On August 7, 2025, Westwater Resources, Inc. (the “Company”) entered into a securities purchase agreement (the “Securities Purchase Agreement”) with certain institutional investors (the “Investors”) under which the Company agreed to issue and sell in a registered public offering directly to the Investors (the “Offering”), convertible notes for up to an aggregate principal amount of $5,000,000 (the “Notes”), which will be convertible into shares of t…

Results of Operations and Financial Condition The information included under

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under

Entry into a Material Definitive Agreement. On June 13, 2025, Westwater Resources, Inc. (the “Company”) entered into a securities purchase agreement (the “Securities Purchase Agreement”) with certain institutional investors (the “Investors”) under which the Company agreed to issue and sell in a registered public offering directly to the Investor (the “Offering”), convertible notes for up to an aggregate principal amount of $5,000,000 (the “Notes”), which will be convertible into shares of the…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under

Changes in Registrant’s Certifying Accountant. On June 3, 2025, Westwater Resources, Inc. (the "Company") was notified that Moss Adams LLP ("Moss Adams"), the Company's independent registered public accounting firm, merged with Baker Tilly US, LLP effective on June 3, 2025. The combined audit practices operate as Baker Tilly US, LLP (“Baker Tilly”). In connection with the notification of the merger, Moss Adams has resigned as the auditors of the Company and the Audit Committee of the Company’…

Other Events. Westwater Resources, Inc. (“Westwater” or the “Company”) previously entered into an At the Market Offering Agreement, dated August 30, 2024 (the “ATM Agreement”), with H.C. Wainwright relating to the sale of shares of common stock, par value $0.001 per share (the “Common Stock”) from time to time, through an “at the market” offering as defined in rule 415 promulgated under the Securities Act of 1933, as amended. On March 21, 2025, Westwater filed a prospectus supplement for the…

Termination of Material Definitive Agreement. In furtherance of entry into the ATM Agreement, effective as of August 29, 2024, the Company terminated that certain Controlled Equity Offering SM Sales Agreement, dated April 14, 2017, between the Company and Cantor Fitzgerald & Co.

Unregistered Sales of Equity Securities. The information contained above in

Entry into a Material Definitive Agreement. Lincoln Park Capital Committed Equity Financing On August 30, 2024, Westwater Resources, Inc., a Delaware corporation (the “ Company ”), entered into a purchase agreement (the “ Purchase Agreement ”), and a registration rights agreement (the “ Registration Rights Agreement ”), with Lincoln Park Capital Fund, LLC, an Illinois limited liability company (“ Lincoln Park ”), pursuant to which Lincoln Park has committed to purchase up to $30.0 million of…

Entry into a Material Definitive Agreement On July 17, 2024, Alabama Graphite Products, LLC (“AGP”), a wholly owned subsidiary of Westwater Resources, Inc. (the “Company”) and FCA US LLC (“FCA”) entered into a Binding Offtake Agreement (the “Offtake Agreement”). Pursuant to the terms of the Offtake Agreement, FCA will purchase CSPG natural graphite anode products (the “Product”) from AGP. Under the terms of the Offtake Agreement, FCA will be obligated to purchase Product (the “Annual Offtake…

Entry into a Material Definitive Agreement On February 4, 2024, Westwater Resources, Inc. (the “Company”) and SK On Co., Ltd. (“SK On”) entered into a Products Procurement Agreement (the “Procurement Agreement”). Pursuant to the terms of the Procurement Agreement, SK On will purchase CSPG-10 natural graphite anode products (the “Product”) from the Company. Under the terms of the Procurement Agreement, SK On will be obligated to purchase, on an annual basis, a quantity of Product equal to a pe…

of this Current Report on Form 8-K, including Exhibit 99.1 hereto, is being furnished and shall not be deemed to be “filed” with the Securities and Exchange Commission for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or otherwise subject to the liabilities of that section and is not incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, whether made…

Results of Operations and Financial Condition. On March 7, 2023, Westwater Resources, Inc. (the “Company”) issued a press release announcing the financial results and a business update for the Company for the year ended December 31, 2022. A copy of the press release is attached as Exhibit 99.1 and the information is hereby incorporated by reference herein. The Company does not incorporate by reference information presented at any website referenced in the press release. The information contai…

Entry into a Material Definitive Agreement. Effective January 17, 2023, in connection with his resignation from Westwater Resources, Inc. (the “Company”) on January 16, 2023 (as described in the Company’s Current Report on Form 8-K filed on January 17, 2023), Chad M. Potter, the Company’s former President and Chief Executive Officer, entered into an Agreement and Release (the “Agreement”) with the Company respecting his resignation. Under the Agreement, Mr. Potter will receive one year of bas…

General Manager and Vice President – Alabama Graphite Product — Frank Bakker: Mr. Bakker entered into a new Employment Agreement with the Company, formalizing his role and compensation.

Termination of a Material Definitive Agreement. As described below under Item 5.02, the employment agreement of Chad M. Potter with the Company dated as of February 7, 2022, ceased in connection with his departure from the Company.

above, Mr. Bakker was appointed Chief Executive Officer and President of the Company. Mr. Bakker, age 57, has served as Vice President and General Manager – Alabama Graphite Products since 2022. Prior to joining the Company, from 2017 to 2021, he was responsible for engineering, project management, and plant operations at several methanol plants in Houston, Texas and in Charleston, West Virginia, including serving as the Chief Executive Officer for US Methanol LLC, as the Project Director for…