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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

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

Date of Report (Date of earliest event reported): September 9, 2025

WESTWATER RESOURCES, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware |  | 001-33404 |  | 75-2212772
(State or Other Jurisdiction of |  | (Commission File Number) |  | (IRS Employer
Incorporation) |  |  |  | Identification No.)

6950 S. Potomac Street, Suite 300 Centennial, Colorado |  | 80112
(Address of Principal Executive Offices) |  | (Zip Code)

Registrant’s telephone number, including area code: (303) 531-0516

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

| ¨ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

| ¨ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

| ¨ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

| ¨ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class |  | Trading Symbol(s) |  | Name of Each Exchange on Which Registered
Common Stock, $0.001 par value |  | WWR |  | NYSE American

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b–2 of this chapter).

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 provided pursuant to Section 13(a) of the Exchange Act. ¨

Item 7.01 Regulation FD Disclosure

On September 9, 2025 at 10:30 a.m. ET, Terence Cryan, Executive Chairman of the Board of Directors of Westwater Resources, Inc. (the “Company”), will present at the H.C. Wainwright 27th Annual Global Investment Conference. A copy of the investor presentation that management of the Company intends to use at the conference and from time to time is furnished as Exhibit 99.1 to this Current Report on Form 8-K (the “Investor Presentation”), and will also be posted to the Company’s website on September 9, 2025. The Investor Presentation provides certain updates regarding the Company’s business plan. The foregoing description of the Investor Presentation is not complete and is qualified in its entirety by reference to the full text of the Investor Presentation, a copy of which is included as Exhibit 99.1 hereto.

The information furnished pursuant to Item 7.01, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of, or otherwise regarded as filed under, the Securities Exchange Act of 1934, as amended (the “Exchange Act”), nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended (the "Securities Act") or in the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01 Financial Statements and Exhibits.

Exhibit No. |  | Description
99.1 |  | Investor Presentation, dated September 9, 2025
104 |  | Cover Page Interactive Data File (the cover page XBRL tags are embedded in the Inline XBRL document).

SIGNATURE

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.

| Westwater Resources, Inc.
Dated: September 9, 2025 | /s/ Steven M. Cates
| Steven M. Cates
| Senior Vice President – Finance and Chief Financial Officer