Century Lithium completes Angel Island baseline work

Executive Summary

• Century Lithium Corp. provided a progress update on its 100%-owned Angel Island lithium project in Nevada, highlighting significant advancements in permitting, feasibility study optimization, and infrastructure relocation.
• All baseline and environmental studies for the project have been completed and accepted by the U.S. Bureau of Land Management, with the Plan of Operations (PoO) currently being finalized to initiate the federal permitting process under the National Environmental Policy Act.
• The company is updating its 2024 feasibility study to optimize mine plans, reduce land use footprints, and lower operating costs, while also planning to connect electrical infrastructure to NV Energy’s Greenlink West transmission project.

Key Details

• Permitting Status: All baseline and environmental studies supporting the Angel Island project are complete and accepted by the U.S. Bureau of Land Management. The Plan of Operations (PoO) is being finalized to define mine layout, process plant configuration, water use/management, waste handling, and environmental mitigation. Submission of the PoO will trigger the federal permitting process. The company aims to meet the timeline on the federal FAST-41 dashboard.
• Feasibility Study Update: An update to the 2024 feasibility study is underway, focusing on:
  • Optimization of the mine plan and equipment to improve operating efficiency.
  • Reductions to the land use footprint and plant design modifications to lower estimated operating costs.
  • Significant changes to fluid management, direct lithium extraction (DLE) design, and lithium carbonate production based on demonstration plant results.
  • Primary end product remains lithium carbonate, with additional revenue from surplus sodium hydroxide generated via the chlor-alkali process.
• Infrastructure & Power: Electrical infrastructure is planned to connect to NV Energy's Greenlink West transmission project, a 525-kilovolt system under construction connecting Las Vegas to the Fort Churchill substation near Yerington, Nevada.
• Demonstration Plant Relocation: The demonstration plant was fully dismantled and relocated to the company’s 20-acre Tonopah, Nevada facility (located at the Tonopah airport). This site serves as the field office for Angel Island and was used for preparing bulk sample material for the pilot plant program at Amargosa Valley. The company is evaluating options to improve the site and expand R&D capabilities.
• Project Overview: Angel Island is described as one of the largest known sediment-hosted lithium resources in the U.S. It utilizes a patent-pending chlor-alkali extraction technology to convert sodium chloride into essential reagents. The project is in the permitting stage for a three-phase feasibility-level production plan, expected to yield an estimated life-of-mine average of 34,000 tonnes per year of lithium carbonate over a 40-year mine life.

Notable Quotes

• "Century Lithium's team remains focused on achieving several key steps ahead as we continue to advance the development of Angel Island... The company is progressing on multiple fronts. Our team and consultants have completed and submitted all baseline work in advance of Angel Island's plan of operations." — Bill Willoughby, President and CEO