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Vancouver, British Columbia--(Newsfile Corp. - January 28, 2026) - Sienna Resources Inc. (TSXV: SIEN) (OTCID: SNNAF) (WKN: A418KR) (the "Company" or "Sienna") is pleased to announce that it has entered into a joint venture agreement ("JV") with Cruz Battery Metals Corp. ("Cruz") and Adelayde Exploration Inc. ("Adelayde") to explore the deep basin lithium brine potential in Clayton Valley, Nevada. The 115 mineral…

Vancouver, British Columbia--(Newsfile Corp. - January 13, 2026) - Sienna Resources Inc. (TSXV: SIEN) (OTCID: SNNAF) (WKN: A418KR) (the "Company" or "Sienna") is planning to recommence operations in Nevada on its lithium projects. These include the Cave Creek Lithium Project (Map 1), which is located within Surge Battery Metals Inc.'s project area, and the Clayton Valley Deep Basin Lithium Brine Project (Map 2),…