Mexican Gold Mining and Alcon Silver complete merger to form Platauro Metals

Vancouver, British Columbia--(Newsfile Corp. - July 20, 2026) - Platauro Metals Corp. (TSXV: PURO) (formerly "Mexican Gold Mining Corp.") (" Platauro " or the " Company ") is pleased to announce the successful completion of the previously announced plan of arrangement under the Business Corporations Act (British Columbia) (the " Arrangement ") pursuant to the arrangement agreement dated April 8, 2026 (the " Arrangement Agreement "), whereby Platauro acquired all of the issued and outstanding common shares of Alcon Silver Corp. (" Alcon ") in exchange for common shares in the capital of Platauro (the " Consideration Shares "). Pursuant to the Arrangement, Alcon shareholders received one post-consolidation common share of Platauro for each common share of Alcon held (each, an " Alcon Share "). Following completion of the Arrangement and the conversion of the Subscription Receipts (as defined below), former Alcon shareholders hold approximately 53% of the issued and outstanding common shares of Platauro on a non-diluted basis.

A total of 40,797,830 Consideration Shares were issued to Alcon shareholders at a deemed price of approximately $0.27 per share on a post-consolidation basis, based on the market price of the Consideration Shares prior to closing of the Arrangement, for aggregate deemed consideration of approximately $10,879,640. Jack Campbell, CEO of Platauro, stated: " We are pleased to announce the successful completion of this transformative transaction, which establishes Platauro as a diversified precious metals exploration company with a compelling growth platform. The combination of the robust economics and expansion potential at Las Minas, alongside the strong silver foundation at Princesa, creates a portfolio anchored by quality resources.

With a proven team and a strong, aligned shareholder base, we believe Platauro is well-positioned to deliver significant value to our shareholders. " Name Change and Consolidation Prior to and in connection with the Arrangement, the Company completed a consolidation of its outstanding common shares on a 1.6667-for-one basis (the " Consolidation ") and changed its name from "Mexican Gold Mining Corp." to "Platauro Metals Corp." (the " Name Change "). Effective at the open of markets on July 20, 2026, the common shares of Platauro will commence trading on a post-Consolidation basis under the new name and ticker symbol "PURO" and new CUSIP 727632101.

Concurrent Financing In connection with the Arrangement, the Company previously completed a non-brokered private placement of 11,495,000 subscription receipts (each, a " Subscription Receipt ") at a price of $0.20 per Subscription Receipt for aggregate gross proceeds of $2,299,000 (the " Concurrent Financing "). Upon closing of the Arrangement and satisfaction of the escrow release conditions, each Subscription Receipt automatically converted into one unit of the Company (each, a " Unit "), with each Unit consisting of one common share of the Company (on a post-Consolidation basis) and one-half of one common share purchase warrant (each whole warrant, a " Warrant "). Each Warrant entitles the holder to acquire one common share at an exercise price of $0.30 per share for a period of thirty (30) months following the closing date of the Arrangement.