Taseko Mines: Draft Aquifer Protection Permit Has Been Issued FOR Florence Copper Project

TASEKO MINES: DRAFT AQUIFER PROTECTION PERMIT HAS BEEN

ISSUED FOR FLORENCE COPPER PROJECT

August 6, 2020, Vancouver, BC – Taseko Mines Limited (TSX: TKO; NYSE American: TGB; LSE: TKO) (“Taseko”

or the "Company") is pleased to confirm that the draft Aquifer Protection Permit (“APP”) has been issued

by the Arizona Department of Environmental Quality (“ADEQ”) . The public comment period commenced

today and concludes on September 11, 2020.

This new release confirms Taseko’s August 4, 2020 news release stating that the APP was expected to be

issued today.

For further information on Taseko, please visit the Taseko website at www.tasekomines.com or contact:

Brian Bergot, Vice President, Investor Relations - 778-373-4533 or toll free 1-877-441-4533

Russell Hallbauer

Chief Executive Officer and Director

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

CAUTION REGARDING FORWARD-LOOKING INFORMATION

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 forw ard-

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 effect of COVID-19 and the response of local, provincial, federal and international governments to the threat

of COVID -19 on our operations (including our suppliers, customers, supply chain, employees and contractors) and economic

conditions generally and in particular with respect to the demand for copper and other metals we produce;

• uncertainties and costs related to the Company’s exploration and development activities, such as those associated with continuity

of mineralization or determining whether mineral resources or reserves exist on a property;

• uncertainties related to the accuracy of our estimates of mineral reserves, mineral resources, production rates and timing of

production, future production and future cash and total costs of production and milling;

• uncertainties related to feasibility studies that provide estimates of expected or anticipated costs, expenditures and economic returns

from a mining project;

• uncertainties related to the ability to obtain necessary licenses permits for development projects and project delays due to third party

opposition;

• uncertainties related to unexpected judicial or regulatory proceedings;

• changes in, and the effects of, the laws, regulations and government policies affecting our exploration and development activ ities

and mining operations, particularly laws, regulations and policies;

• changes in general economic conditions, the financial markets and in the demand and market price for copper, gold and other

minerals and commodities, such as diesel fuel, steel, conc rete, 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;

• the effects of forward selling instruments to protect against fluctuations in copper prices and exchange rate movements and the

risks of counterparty defaults, and mark to market risk;

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

• the risk of loss of key employees; the risk of changes in accounting policies and methods we use to report our financial condition,

including uncertainties associated with critical accounting assumptions and estimates;

• environmental issues and liabilities associated with mining including processing and stock piling ore; and

• labour strikes, work stoppages, or other interruptions to, or difficulties in, the employment of labour in markets in which we operate

mines, or environmental hazards, industrial accidents or other events or occurrences, including third party interference that interrupt

the production of minerals in our mines.

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.