Grande Portage Resources Announces SEDAR+ Filing of Preliminary Economic Assessment (PEA) Study for the New Amalga Gold Project in SE Alaska

VANCOUVER, BC / ACCESS Newswire / April 21, 2026 / Grande Portage Resources Ltd. (TSXV:GPG)(OTCQB:GPTRF)(FSE:GPB) ("Grande Portage" or the "Company") is pleased to announce that further to its news release dated April 15, 2026, the Company has filed on SEDAR+ a Preliminary Economic Assessment (PEA) technical report for the New Amalga Gold Project ("New Amalga" or the "project"), located approximately 25km north of the city of Juneau in Southeast Alaska, USA.