Taseko Provides Update on Florence Copper Ramp-up and Gibraltar 2025 Production Results

Taseko Provides Update on Florence Copper Ramp-up and Gibraltar 2025

Production Results

VANCOUVER, British Columbia, Jan. 13, 2026 -- Taseko Mines Limited (TSX: TKO; NYSE American: TGB; LSE: TKO)

(“Taseko” or the “Company”) is pleased to update progress at Florence Copper and announce 2025 production results for the

Gibraltar Mine.

Construction activity at Florence Copper is now complete and the focus has shifted to wellfield operations and commissioning

of the SX/EW plant. Wellfield acidification commenced in early November, and in early December mining solutions were

circulating in all the new production wells within the commercial wellfield. Injection flowrates in the wellfield have met or

exceeded expectations to-date, resulting in faster initial acidification of the wellfield. The grade of copper recovered in solution

from the recovery wells has continued to increase, and the average solution grade has now reached the level required for

SX/EW plant operations. Commissioning of the SX/EW plant area has been advancing without any significant issues, and

plant operations are expected to commence shortly.

Wellfield drilling has also re-commenced with three drill rigs currently operating on site. Continued expansion of the

commercial wellfield will support higher solution flows and increased copper production for the ramp-up this year.

Stuart McDonald, President and CEO of Taseko, commented, “The transition from construction to early-stage operations at

Florence has gone smoothly, and we are very pleased with the initial copper recoveries and performance of the commercial

wellfield.   Our project team is focused on the successful start-up of the SX/EW plant in the coming days, followed by first

copper cathode production within a few weeks.”

At Gibraltar, copper and molybdenum production for the 2025 year was 98 million pounds and 1.9 million pounds, respectively.

Sales for the year were 99 million pounds of copper and 1.9 million pounds of molybdenum. Fourth quarter copper production

was 31 million pounds of copper, a significant increase over the previous quarters of 2025. Copper head grade for the quarter

increased to 0.26%, in line with management expectations, and recoveries were 81%. Production in the fourth quarter was

impacted by unanticipated mill downtime, due to unscheduled maintenance activities and a serious accident which resulted in

a temporary site wide shut down in November. Molybdenum production in the quarter was 0.8 million pounds, approximately

50% higher than the third quarter, and the best quarterly production in eight years. Gibraltar’s SX/EW plant produced 0.9

million pounds of copper cathode in the fourth quarter, and continues to operate.

“Gibraltar production in the second half of the year was a notable improvement over the first half of the year with higher grades

and better quality ore.   Looking ahead to 2026, we expect more consistent quarterly production, now that we are better

situated in the Connector pit, and higher overall copper production,” added Mr. McDonald.

For further information on Taseko, see the Company’s website at tasekomines.com or contact:

• Investor enquiries Brian Bergot, Vice President, Investor Relations – 778-373-4554

Stuart McDonald

President and CEO

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 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 and in the market price for our input costs including due

to inflationary impacts, such as diesel fuel, acid, 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;

• inherent risks associated with mining operations, including our current mining operations at Gibraltar and our planned

mining operations at Florence Copper, and their potential impact on our ability to achieve our production estimates;

• uncertainties as to our ability to achieve reduced costs for Gibraltar and to otherwise control our operating costs without

impacting our planned copper production;

• our high level of indebtedness and its potential impact on our financial condition and the requirement to generate cash

flow to service our indebtedness and refinance such indebtedness from time to time;

• the increases in interest rates, by central banks may increase our borrowing costs and impact the profitability of our

operations;

• our ability to draw down on our financing arrangements for the commissioning and ramp up of operations at Florence

Copper is subject to our meeting the required conditions for drawdown;

• the amounts we are required to pay for our acquisition of Cariboo will increase with higher copper prices;

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

• 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;

• the risk that we may not be able to expand or replace Mineral Reserves as our existing Mineral Reserves are mined;

• the risk that the results from our commissioning, ramp up and initial operations of Florence Copper will not meet our

estimates of operating costs, revenue, sustaining capital, rates of return and cash flows from operations which have

been projected by the technical report for Florence;

• the risk of commissioning and ramp up of the commercial facilities at Florence Copper, resulting in not commencing

commercial production within our current projected timeline or within our current projected cost estimates;

• uncertainties related to the commencement of commercial operations at Florence Copper resulting from inflation risk,

supply chain disruptions, material and labour shortages or other execution risks;

• our ability to comply with all conditions imposed under the APP and UIC permits for the operation of Florence Copper;

• the availability of, and uncertainties relating to, any additional financing necessary for the continued operation and

development of our projects, including with respect to our ability to obtain any additional financing, if needed, to

commence commercial operations at Florence Copper;

• shortages of water supply, critical spare parts, maintenance service and new equipment and machinery or our ability to

manage surplus water on our mine sites may materially and adversely affect our operations and development projects;

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

• uncertainties related to our ability to obtain necessary title, licenses and permits for our development projects and

project delays due to third party opposition;

• uncertainties related to Indigenous people’s claims and rights, and legislation and government policies regarding the

same;

• our reliance on the availability of infrastructure necessary for development and on operations, including on rail

transportation and port terminals for shipping of our copper concentrate production from Gibraltar, and rail transportation

and power for the feasibility of our other British Columbia development projects;

• 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

activities and mining operations;

• potential changes to the mineral tenure system in British Columbia, which is undergoing reform for compliance with the

Declaration Act (British Columbia);

• our dependence solely on our 100% interest in Gibraltar for our revenues and our operating cash flows;

• our ability to extend existing concentrate off-take agreements or enter into new agreements;

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

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

we operate mines, industrial accidents, equipment failure or other events or occurrences, including third party

interference that interrupt the production of minerals in our mines;

• environmental hazards and risks associated with climate change, including the potential for damage to infrastructure

and stoppages of operations due to extreme cold, forest fires, flooding, drought, earthquakes or other natural events in

the vicinity of our operations;

• litigation risks and the inherent uncertainty of litigation;

• our actual costs of reclamation and mine closure may exceed our current estimates of these liabilities;

• our ability to renegotiate our existing union agreement for Gibraltar when it expires in May 2027;

• the capital intensive nature of our business both to sustain current mining operations and to develop any new projects;

• our ability to develop new mining projects may be adversely impacted by potential indigenous joint decision-making and

consent agreements being implemented by the Government of British Columbia under the B.C. Declaration on the

Rights of Indigenous Peoples Act;

• our reliance upon key personnel;

• the competitive environment in which we operate;

• the effects of forward selling instruments to protect against fluctuations in copper prices and other input costs including

diesel and acid;

• 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;

• uncertainties relating to the war in Ukraine, the Israel-Hamas conflict and other future geopolitical events including

social unrest, which could disrupt financial markets, supply chains, availability of materials and equipment and

execution timelines for any project development;

• recent changes to U.S. trade policies and tariff risks may adversely impact overall economic conditions, copper

markets, supply chains, metal prices and input costs; and

• other risks detailed from time-to-time in our annual information forms, annual reports, MD&A, quarterly reports and

material change reports filed with and furnished to securities regulators, and those risks which are discussed under the

heading “Risk Factors”.

For further information on Taseko, investors should review the Company’s annual report on Form 40-F filed with the United

States Securities and Exchange Commission and available at www.sec.gov and home jurisdiction filings that are available at

www.sedarplus.ca.