Century Lithium Advances Demonstration Plant Relocation To Tonopah And Provides Reagent Cost Structure Update

About this update from Century Lithium Corp

Demonstration Plant Commissioning Targeted for H2 2026; Company's Chlor-Alkali Process Uses Salt-Based Reagents with No Direct Exposure to Rising Global Sulfur and Sulfuric Acid Prices VANCOUVER, BC, April 23, 2026 /CNW/ - Century Lithium Corp. (TSXV: LCE) (OTCQX: CYDVF) (Frankfurt: C1Z) ("Century Lithium" or the "Company") is pleased to provide an update on the relocation of its Lithium Extraction Facility ("Demonstration Plant") to the Company's site in Tonopah, Nevada, USA. Current market conditions also highlight the competitive advantage of the Company's 100%-owned Angel Island lithium project ("Angel Island") in Esmeralda County, Nevada and its integrated chlor-alkali process as global sulfur and sulfuric acid prices rise. "During the last five years, Century Lithium developed an integrated process flowsheet that successfully produced battery-grade lithium carbonate from Angel Island claystone. The patent-pending process uses salt, rather than sulfur-derived reagents, which distinguishes Angel Island from spodumene and most sedimentary lithium projects globally," said Bill Willoughby, President and CEO of Century Lithium. "Moving the Demonstration Plant to Tonopah lets us show the operating benefits of our chlor-alkali process at a moment when sulfur demand and related reagent costs are rising. Our process was designed for its compatibility with our Angel Island lithium deposit and regionally obtainable resources. As pressures on international supply chains increase, that advantage becomes increasingly meaningful for our shareholders and future customers." Demonstration Plant: Progress and Planned Work at Tonopah The Demonstration Plant operated at the Company's Amargosa Valley facility for five years, producing battery-grade lithium carbonate and validating the integrated chlor-alkali flowsheet for Angel Island. Relocation to Tonopah is proceeding as planned. Equipment relocation, construction of a new process building, and application for a Nevada Water Pollution Control Permit are all in progress, with commissioning targeted for the second half of 2026. Upon completion, the Company plans to conduct structured metallurgical testing per the recommendations of the 2026 Feasibility Study (described below), including full test runs on claystone zones 1 and 2. Bench-scale testing reported in the Feasibility Study indicates the deeper claystone per...

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