WESTWATER RESOURCES, INC.

Our significant accounting policies are described inNote 1 to the consolidated financial statements inItem 8 of this Annual Report on Form 10-K. We believe our most critical accounting policies involve those requiring the use of significant estimates and assumptions in determining values or projecting future costs.

Property, Plant and Equipment

The Company reviews and evaluates its long-lived assets for impairment when events or changes in circumstances indicate that the related carrying amounts may not be recoverable. The Company considers events or changes in circumstances such as, but not limited to, significant negative impacts in the market price or demand of graphite or potential graphite products, a significant adverse change in the extent or manner to which we will use our long-lived asset (or asset group), adverse social or political developments, accumulation of costs over projected budget or accumulation of costs in excess of potential future cash flows of a long-lived asset (or asset group).

Graphite Processing Facilities and Equipment

Impairment is considered to exist if the total estimated future cash flows on an undiscounted basis are less than the carrying amount of the assets. An impairment loss is measured and recorded based on discounted estimated future cash flows or upon an estimate of fair value that may be received in an exchange transaction. Future cash flows are estimated based on expected graphite prices, production levels, and operating and capital costs over the estimated useful life of the project. In estimating future cash flows, assets are grouped at the lowest level for which there are identifiable cash flows that are largely independent of future cash flows from other asset groups. The Company’s estimate of future cash flows requires significant management judgement and is based on numerous assumptions. Actual future cash flows may be significantly different than the estimates, as actual future quantities of production, future changes in market price or demand of graphite, operating and capital costs, and availability and cost of capital are each subject to significant risks and uncertainties.

Impairment is considered to exist if the total estimated future cash flows on an undiscounted basis are less than the carrying amount of the assets. An impairment loss is measured and recorded based on discounted estimated future cash flows or upon an estimate of fair value that may be received in an exchange transaction. Future cash flows are estimated based on quantities of recoverable minerals, projected graphite prices, production levels, and operating and capital costs, based upon the projected remaining future graphite or vanadium production. Existing proven and probable reserves and value beyond proven and probable reserves, including mineralization that is not part of the measured, indicated or inferred resource base, are included when determining the fair value of mine site reporting unit at acquisition and, subsequently, in determining whether the assets are impaired. The term “recoverable minerals” refers to the estimated amount of graphite or vanadium that will be obtained after taking into account losses during processing and treatment. In estimating future cash flows, assets are grouped at the lowest level for which there are identifiable cash flows that are largely independent of future cash flows from other asset groups. The Company’s estimate of future cash flows requires significant management judgement and is based on numerous assumptions. Actual future cash flows may be significantly different than the estimates, as actual future quantities of recoverable minerals, future changes in market price or demand of graphite,

production levels and operating costs of production and availability and cost of capital are each subject to significant risks and uncertainties.

No indicators of impairment were identified during 2024 nor 2023 and therefore, no impairment was recorded in either year.

Inventory

Inventory consisted of raw material of natural flake graphite concentrate purchased from a non-related third party to be used in the creation of additional samples for potential customers, the testing and commissioning of Phase I of the Kellyton Graphite Plant, and future operations. The Company values the natural flake graphite concentrate at the lower of cost or net realizable value. Net realizable value represents the estimated future sales price of the product based on current and long-term graphite prices, less the estimated costs to complete production and bring the product to sale. Write-downs of the natural flake graphite concentrate to net realizable value are reported as a component of costs applicable to sales. The Company determines the current portion of inventory, if any, based on the expected amounts to be processed within the next 12 months and utilize the short-term metal price assumption in estimating net realizable value. Inventory not expected to be processed within the next 12 months, if any, is classified as non-current within other long-term assets and the Company utilizes the long-term metal price assumption in estimating net realizable value. Costs are removed from raw materials using an average cost basis.

For the year ended December 31, 2024, the Company recognized a $1.0 million write-down of inventory based on the net realizable value of committed sales of raw material inventory. For the year ended December 31, 2023, there was no write-down of the Company’s inventory.