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VANCOUVER , BC   , Sept. 19, 2022 /PRNewswire/ - Taseko Mines Limited (TSX: TKO) (NYSEAMERICAN: TGB) (LSE: TKO) ("Taseko" or the "Company") is pleased to provide an update on the federal permitting process for its Florence Copper Project.

On September 15 , the U.S. Environmental Protection Agency ("EPA") held a virtual public hearing for the draft Underground Injection Control ("UIC") permit issued for Florence Copper on August 15, 2022 . Twenty-seven participants provided comment at the hearing, each supporting the project and calling for a final UIC permit to be issued. The UIC permit is the last authorization required to advance the Florence Copper Project to commercial production.

The EPA public comment period is scheduled to conclude on September 29, 2022 .

Stuart McDonald President and CEO

No regulatory authority has approved or disapproved of the information contained in this news release.

This document contains "forward-looking statements" that were based on Taseko's expectations, estimates and projections as of the dates as of which those statements were made. Generally, these forward-looking statements can be identified by the use of forward-looking terminology such as "outlook", "anticipate", "project", "target", "believe", "estimate", "expect", "intend", "should" and similar expressions.

Forward-looking statements are subject to known and unknown risks, uncertainties and other factors that may cause the Company's actual results, level of activity, performance or achievements to be materially different from those expressed or implied by such forward-looking statements. These included but are not limited to:

uncertainties about the future market price of copper and the other metals that we produce or may seek to produce;

changes in general economic conditions, the financial markets, inflation and interest rates and in the demand and market price for our input costs, such as diesel fuel, reagents, steel, concrete, electricity and other forms of energy, mining equipment, and fluctuations in exchange rates, particularly with respect to the value of the U.S. dollar and Canadian dollar, and the continued availability of capital and financing;

uncertainties resulting from the war in Ukraine , and the accompanying international response including economic sanctions levied against Russia , which has disrupted the global economy, created increased volatility in commodity markets (including oil and gas prices), and disrupted international trade and financial markets, all of which have an ongoing and uncertain effect on global economics, supply chains, availability of materials and equipment and execution timelines for project development;

uncertainties about the continuing impact of the novel coronavirus ("COVID-19") and the response of local, provincial, state, federal and international governments to the ongoing threat of COVID-19, on our operations (including our suppliers, customers, supply chains, employees and contractors) and economic conditions generally including rising inflation levels and in particular with respect to the demand for copper and other metals we produce;

inherent risks associated with mining operations, including our current mining operations at Gibraltar , and their potential impact on our ability to achieve our production estimates;

uncertainties as to our ability to control our operating costs, including inflationary cost pressures at Gibraltar without impacting our planned copper production;

the risk of inadequate insurance or inability to obtain insurance to cover material mining or operational risks; 

uncertainties related to the feasibility study for Florence copper project (the "Florence Copper Project" or "Florence Copper") that provides estimates of expected or anticipated capital and operating costs, expenditures and economic returns from this mining project, including the impact of inflation on the estimated costs related to the construction of the Florence Copper Project and our other development projects;

the risk that the results from our operations of the Florence Copper production test facility ("PTF") and ongoing engineering work including updated capital and operating costs will negatively impact our estimates for current projected economics for commercial operations at Florence Copper;

uncertainties related to the accuracy of our estimates of Mineral Reserves (as defined below), Mineral Resources (as defined below), production rates and timing of production, future production and future cash and total costs of production and milling;

the risk that we may not be able to expand or replace reserves as our existing mineral reserves are mined;

the availability of, and uncertainties relating to the development of, additional financing and infrastructure necessary for the advancement of our development projects, including with respect to our ability to obtain any remaining construction financing potentially needed to move forward with commercial operations at Florence Copper;

our ability to comply with the extensive governmental regulation to which our business is subject;

For further information on Taseko, investors should review the Company's annual Form 40-F filing with the United States Securities and Exchange Commission www.sec.gov and home jurisdiction filings that are available at www.sedar.com, including the "Risk Factors" included in our Annual Information Form.

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