Mr. Jagdip Bal reports

LEXSTON MINING CORPORATION ANNOUNCES DRAFTING OF DEFINITIVE AGREEMENT REGARDING PROPOSED ACQUISITION OF MINERAL CLAIMS IN GUYANA

Following the execution of Lexston Mining Corp.'s letter of intent announced on July 14, 2026, the company's wholly owned subsidiary, Lexston Guyana Inc., has commenced drafting a definitive purchase agreement with claimholder Joseph Jardine.

The definitive agreement is intended to set out the terms for Lexston to acquire a 100-per-cent interest in 15 mineral claims, encompassing approximately 16,000 acres located in region 1, mining district 5, in the northwestern region of Guyana.

Jag Bal, chief executive officer of Lexston, stated: "We have commenced work on the definitive agreement as our team evaluates these prospective claims in the Guiana Shield. We look forward to working collaboratively with Mr. Jardine to finalize the formal terms."

Consideration and milestones ($1.1-million (U.S.)):

• LOI (letter of intent) deposit: $25,000 (U.S.) has been advanced (refundable if the seller terminates early);
• Approvals payment: $125,000 (U.S.) payable upon receipt of all required regulatory approvals;
• 90-day postapproval payment: $150,000 (U.S.) payable 90 days following receipt of all required regulatory approval;
• Year 1 instalment: $200,000 (U.S.) as the first annual instalment;
• Years 2 to 5 instalments: $600,000 (U.S.) in four consecutive annual instalments of $150,000 (U.S.) each.

Retained royalty and rights:

• Net smelter royalty: The seller will retain a 2-per-cent net smelter royalty on any future commercial production from the mineral claims.
• Alluvial gold rights: The seller will maintain distinct operational rights to independent surface alluvial gold harvesting on the property.

The contemplated transaction remains subject to the parties agreeing on and executing the definitive agreement and to receipt of all required approvals. There can be no assurance that the transaction will be completed on the terms described herein or at all.

About Lexston Mining Corp.

Lexston Mining is a Canadian mineral exploration company focused on the acquisition and development of mineral projects. The company's objective is to advance its mineral exploration portfolio and create value for stakeholders. Lexston currently has mineral exploration projects in British Columbia and Nevada, and is evaluating acquisition of the mineral claims in Guyana described in this news release.

The company trades on the OTCQB Venture Market under the symbol LEXTF. The OTCQB Venture Market is for early-stage and developing U.S. and international companies that are current in their reporting and complete an annual verification and management certification process.

We seek Safe Harbor.