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Preliminary results of the Definitive Feasibility Study ("Preliminary DFS Results") for the Red Rock converter in Ontario indicate total capital costs of approximately CAD$600 million.   Preliminary DFS Results are based on a further optimized, industry-proven converter design with an annual production capacity of about 30,000 tonnes of lithium salts.

Rock Tech broadens investor outreach and increases awareness of its growth strategy Rock Tech addresses previously underserved Canadian investor audience TORONTO, Sept. 24, 2026 /PRNewswire/ -- Rock Tech Lithium Inc. (TSXV: RCK) (OTCQX: RCKTF) (FWB: RJIB) (WKN: A1XF0V) (the "Company" or "Rock Tech") is pleased to announce its participation in the Muskoka Capital Event, hosted by  CEM (Capital Event Management Ltd.

Rock Tech Lithium and Siemens Canada Sign Agreements to Bring Advanced German Engineering to Ontario Lithium Converter ProjectPR NewswireTORONTO, Sept. 22, 2026

Siemens to develop a Digital Process Twin for Rock Tech's planned Red Rock Converter using results from ongoing Definitive Feasibility Study (DFS) Siemens to provide Rock Tech's DFS Project Team with specialized support for process control, instrumentation and automation architecture The Rock Tech–Siemens collaboration provides a concrete industrial example of how German engineering expertise and Canadian resources…

TORONTO, Sept. 10, 2026 /PRNewswire/ - Rock Tech Lithium Inc. (TSXV: RCK) (OTCQX: RCKTF) (FWB: RJIB) (WKN: A1XF0V) (the "Company" or "Rock Tech") is pleased to announce that Company management will participate in several capital markets conferences and political events this month of September.