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WMK.V ·

“Company”) (TSXV – “WMK”) provides a corporate update. Whitemud is pleased to provide the following corporate update. Whitemud advises that it has entered into a mulƟ-year supply agreement for its EnviroPozz™ Metakaolin with an end user in Western Canada. Management anƟcipates that iniƟal volumes

Mine Development & Operations

NEWS RELEASE

Calgary, Alberta (September 16, 2025) – Whitemud Resources Inc. (“Whitemud” or the “Company”) (TSXV – “WMK”) provides a corporate update.

Whitemud is pleased to provide the following corporate update.

Whitemud advises that it has entered into a mul�-year supply agreement for its EnviroPozz™ Metakaolin with an end user in Western Canada. Management an�cipates that ini�al volumes could be up to 3,000 tonnes per year, with an opportunity to grow to 10,000 tonnes per year based on con�nued favourable economic condi�ons.

The EnviroPozz™ Metakaolin will be sourced from its recently upgraded Gollier Creek facility at Wood Mountain in southern Saskatchewan.

This supply agreement, in addi�on to its exis�ng customer base and addi�onal prospec�ve customers who have been tes�ng Whitemud’s EnviroPozz™ Metakaolin for use in the concrete industry, posi�ons Whitemud to achieve a be�er financial foo�ng as a company.

About Whitemud Resources Inc.

Whitemud is a Canadian-based corpora�on holding mineral rights to exploit a large kaolin deposit in southern Saskatchewan, together with a processing facility located on the property. Whitemud’s product, EnviroPozz™ metakaolin, is a highly reac�ve supplementary cemen�ng material that enhances the performance of cement for energy development and construc�on applica�ons. The Company uses a process that minimizes environmental impact.

For further informa�on, please contact:

Whitemud Resources Inc.

General Inquiries Suite 900, 332 - 6th Avenue SW Calgary, Alberta T2P 0B2 Attention: Stan Owerko: 403-200-5253

Reader Advisory

This news release contains forward-looking statements, within the meaning of applicable securi�es legisla�on, concerning Whitemud’s business and affairs. In certain cases, forwardlooking statements can be iden�fied by the use of words such as ‘‘a�empts’’, ‘‘intends’’, “con�nues”, “plans” or varia�ons of such words and phrases or state that certain ac�ons, events, or results ‘‘may’’, ‘‘could’’, ‘‘would’’, ‘‘might’’ or ‘‘will be taken’’, ‘‘occur’’ or ‘‘be achieved’’. These statements involve known and unknown risks, uncertain�es, and other factors that may cause actual results or events to differ materially from those an�cipated in such forward-looking statements. In par�cular, the actual volume of sales that may be achieved under the mul� year supply agreement referred to above is uncertain, as there is no obliga�on to purchase any specified amount under the agreement. The ability of Whitemud to deliver product is subject to opera�onal risks such as equipment failure that could delay or prevent fulfillment of an�cipated sales volumes. Although Whitemud believes these statements to be reasonable, no assurance can be given that these expecta�ons will prove to be correct and such forward-looking statements included in this news release should not be unduly relied upon. The forward-looking statements contained in this news release represent Whitemud’s expecta�ons as of the date hereof and are subject to change a�er such date. Whitemud disclaims any inten�on or obliga�on to update or revise any forward-looking statements whether as a result of new informa�on, future events, or otherwise, except as may be required by applicable securi�es regula�ons.

Neither the TSXV nor its Regula�on Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Not for distribution to United States Newswire Services or for dissemination in the United States.