Grande Portage Retains Machai Capital for Marketing

VANCOUVER, BC / ACCESS Newswire / November 18, 2025 / Grande Portage Resources Ltd. (TSXV:GPG)(OTCQB:GPTRF)(FSE:GPB) ("Grande Portage" or the "Company") is pleased to announce that it has retained Machai Capital Inc. ("Machai") to provide the Company with a range of digital marketing services.

Marketing Agreement
The Company has entered into an agreement with Machai dated November 17, 2025 (the "Machai Agreement"), pursuant to which Machai will lead the Company's marketing, advertising, and public awareness activities and deploy a comprehensive digital media marketing program including multi-platform digital campaigns, social media amplification, and targeted investor communications.

Machai will provide digital marketing services with branding, content and data optimization to assist the Company to create in-depth marketing campaigns, tracking, organizing and executing the services through search engine optimization, search engine marketing, lead generation, digital marketing, social media marketing, email marketing, and brand marketing. The services will be conducted in accordance with the applicable policies of the TSX Venture Exchange ("TSXV").

Machai has been engaged by the Company for a 4 month period commencing immediately. In consideration for the services provided, the Company has paid Machai C$400,000 plus GST out of its general working capital account. The Company has also granted stock options to purchase up to 500,000 common shares of the Company to Machai, exercisable at a price of $0.25 per share until March 17, 2028 in accordance with the Company's stock option plan and applicable regulatory policies. The engagement of Machai is subject to the approval of the TSXV.

Machai is a premier data analytics & direct awareness firm with an established track record in the North American, European, and Asia-pacific markets and in the metals & mining, technology and special situations sectors. Machai is arm's-length to the Company, has no other relationship with the Company and neither Machai nor its principal, Suneal Sandhu, has any interest, directly or indirectly, in the Company or its securities, or any right or intent to acquire such an interest, other than as disclosed herein. Machai can be contacted at [e-mail] or at Suite 101, 17565 58 Ave, Surrey, B.C., V3S 4E3, Canada.