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Century Lithium Files Technical Report ON the Feasibility Study FOR the Angel Island Lithium Project, Nevada

Technical Reports (NI 43-101) Economic Studies

TSXV: LCE | OTCQX: CYDVF

Suite 1030 – 505 Burrard Street, Vancouver, BC V7X 1M5 Canada

NEWS RELEASE

CENTURY LITHIUM FILES TECHNICAL REPORT

ON THE FEASIBILITY STUDY FOR THE ANGEL ISLAND LITHIUM PROJECT, NEVADA

March 9, 2026 – Vancouver, Canada – Century Lithium Corp. (TSXV: LCE) (OTCQX: CYDVF) (Frankfurt:

C1Z) (“Century Lithium” or “the Company”) is pleased to announce the filing of the report for the

Company’s 100%-owned Angel Island Lithium Project (“Angel Island”, a.k.a. “Clayton Valley”), “UPDATED

NI 43-101 TECHNICAL REPORT ON THE FEASIBILITY STUDY OF THE CLAYTON VALLEY LITHIUM PROJECT

Esmeralda County, Nevada, USA”, with effective date January 3, 2026 (“Feasibility Study” or “Report”), to

support the disclosure in the Company’s news release dated February 23, 2026. The Report was prepared

in accordance with National Instrument 43-101 (NI 43-101) by Mineral Property Development (“MPDI”),

Global Resource Engineering, Ltd. (“GRE”) and SRK Incorporated (“SRK”).

All currency amounts in this news release are presented in US dollars.

The Feasibility Study incorporates the results of continued metallurgical testing, engineering optimization,

refinement of the mine plan, and updated capital and operating cost estimates for Angel Island. Using a

base case price of $24,000/tonne (“t”) of lithium carbonate, Angel Island’s estimated after-tax cash flow

has a 27.4% Internal Rate of Return (“IRR”) and a $4.01 billion Net Present Value (“NPV”) at an 8% discount

rate.

Feasibility Study Highlights

• After-tax NPV (8% discount rate) of $4.01 billion based on price assumptions of $24,000/t for

lithium carbonate and $750/dry metric tonne for sodium hydroxide

• After-tax IRR of 27.4%

• Integrated patent-pending processing flowsheet, incorporating hydrochloric acid leaching, Direct

Lithium Extraction (“DLE”), chlor-alkali processing, and on-site production of battery-grade lithium

carbonate, validated through four years of pilot plant operations in Nevada

• Large, long-life US-based lithium development project, with Proven and Probable Reserves

supporting a mine life exceeding 60 years

• Economic analysis based on a 40-year production schedule, with a life-of-mine average

production of approximately 26,500 tonnes per annum (“tpa”) of battery-grade lithium

carbonate

• Phase 1 throughput of 7,500 tonnes per day (“tpd”), expanding to 15,000 tpd in Year 5 (Phase 2)

Capital and Operating Costs

• Phase 1 estimated capital cost of $997 million

• Phase 2 estimated expansion capital of $660 million

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• Average estimated operating cost of $22.45/t of mill feed, equivalent to $4,389 per tonne of

lithium carbonate

• Project revenues from surplus sodium hydroxide equivalent to $5,393/t of lithium carbonate

produced. When treated as a co-product credit, this would result in a net operating cost below

zero

Mineral Resource and Reserve

• Measured and Indicated Mineral Resources of 1.138 billion t at 966 parts per million (“ppm”)

lithium, containing 5.852 million t lithium carbonate equivalent (“LCE”)

• Proven and Probable Mineral Reserves of 287.65 million t at 1,149 ppm lithium, containing 1.759

million t LCE

Qualified Person

The technical information contained in this news release was reviewed and approved by Richard W. Jolk,

P.E., an independent Qualified Person as defined under National Instrument 43-101.

ABOUT CENTURY LITHIUM CORP.

Century Lithium Corp. is an advanced-stage lithium development company focused on its 100%-owned

Angel Island lithium project in Esmeralda County, Nevada. Angel Island hosts one of the largest known

sedimentary lithium deposits in the United States and is designed with an integrated, end-to-end process

for the on-site production of battery-grade lithium carbonate to support the electric vehicle and battery

storage markets.

The Company has developed a patent-pending process that incorporates hydrochloric acid leaching

combined with direct lithium extraction to produce battery-grade lithium carbonate. As part of the

integrated chlor-alkali process, Angel Island is designed to produce sodium hydroxide as a co-product, with

planned surplus sales expected to lower operating costs, reduce reliance on externally sourced reagents,

and minimize environmental impacts.

Century Lithium is currently advancing Angel Island through the permitting process.

Century Lithium trades on the TSX Venture Exchange under the symbol “LCE” the OTCQX under the symbol

“CYDVF”, and on the Frankfurt Stock Exchange under the symbol “C1Z”.

To learn more, please visit centurylithium.com.

ON BEHALF OF CENTURY LITHIUM CORP.

WILLIAM WILLOUGHBY, PhD., PE

President & Chief Executive Officer

For further information, please contact:

Spiros Cacos | Vice President, Investor Relations

Direct: +1 604 764 1851

Toll Free: 1 800 567 8181

[email protected]

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centurylithium.com

NEITHER THE TSX VENTURE EXCHANGE NOR ITS REGULATION SERVICES PROVIDER ACCEPTS

RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THE CONTENT OF THIS NEWS RELEASE.

Cautionary Note Regarding Forward-Looking Statements

This release contains certain forward-looking statements within the meaning of applicable Canadian

securities legislation. In certain cases, forward-looking statements can be identified by the use of words

such as "plans", "expects" or "does not anticipate", or "believes", or variations of such words and phrases

or statements that certain actions, events or results "may", "could", "would", "might" or "will be taken",

"occur" or "be achieved" and similar expressions suggesting future outcomes or statements regarding an

outlook.

Forward-looking statements relate to any matters that are not historical facts and statements of our beliefs,

intentions and expectations about developments, results and events which will or may occur in the future,

without limitation, statements with respect to the potential development and value of the Project and

benefits associated therewith, statements with respect to the expected project economics for the Project,

such as estimates of life of mine, lithium prices, production and recoveries, capital and operating costs, IRR,

NPV and cash flows, any projections outlined in the Feasibility Study in respect of the Project, the permitting

status of the Project and the Company’s future development plans.

These and other forward-looking statements and information are subject to various known and unknown

risks and uncertainties, many of which are beyond the ability of the Company to control or predict, that may

cause their actual results, performance or achievements to be materially different from those expressed or

implied thereby, and are developed based on assumptions about such risks, uncertainties and other factors

set out herein. These risks include those described under the heading "Risk Factors" in the Company’s most

recent annual information form and its other public filings, copies of which can be found under the

Company’s profile at www.sedarplus.com. The Company expressly disclaims any obligation to update-

forward-looking information except as required by applicable law. No forward-looking statement can be

guaranteed, and actual future results may vary materially. Accordingly, readers are advised not to place

reliance on forward-looking statements or information. Furthermore, Mineral Resources that are not

Mineral Reserves do not have demonstrated economic viability.