Vanguard Mining Corp. Files Maiden NI 43-101 Technical Report Advancing the Pocitos I Lithium Project, Salta, Argentina

Vancouver, BC – April  21, 2026 – TheNewswire – Vanguard Mining Corp. ("Vanguard" or the "Company") ( UUU: CSE |UUUFF: OTCID | SL51: Frankfurt ) is pleased to announce that it has filed its maiden independent National Instrument 43-101 (“NI 43-101” ) technical report (the “Technical Report” ) for its 100%-owned Pocitos I Project, located in Salta Province, Republic of Argentina. Scientific and technical information relating to the Pocitos I Property is supported by the technical report titled “NI 43-101 Technical Report – Pocitos I, Salta Province, Argentina” , with an effective date of March 13, 2026, prepared for Vanguard Mining Corp. by independent Qualified Persons Aaron Radonich, FAusIMM (CP), Principal Geologist and Director of AR Mine Advisory Pty Ltd, and Jason van den Akker, MAIG, Principal Hydrogeologist at WSP Australia Pty Limited (“WSP Australia”) , each of whom is independent of the Company within the meaning of National Instrument 43-101.