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Taseko Announces Strong Fourth Quarter Financial Results and Commencement of Copper Production at Florence Copper

Financials

Taseko Announces Strong Fourth Quarter Financial Results and

Commencement of Copper Production at Florence Copper

VANCOUVER, British Columbia, Feb. 18, 2026 -- Taseko Mines Limited (TSX: TKO; NYSE American: TGB; LSE: TKO)

("Taseko" or the "Company") reports full year 2025 Adjusted EBITDA* of $230 million and Earnings from mining operations

before depletion and amortization and non-recurring items* of $251 million. Revenues for 2025 were $673 million from the sale

of 99 million pounds of copper and 1.9 million pounds of molybdenum. For the year, a Net loss of $30 million ($0.09 loss per

share) was recorded and Adjusted net income* was $27 million ($0.07 per share).

For the fourth quarter, Adjusted EBITDA* was $116 million, and cash flow from operations was $101 million. Net income of $4

million ($0.01 per share) was recorded for the quarter and Adjusted net income* was $42 million ($0.11 per share).

In the fourth quarter, Gibraltar produced 31 million pounds of copper and 830 thousand pounds of molybdenum at Total

operating cost (C1)* of US$2.47 per pound of copper produced. For the year, Gibraltar produced 98 million pounds of copper

and 1.9 million pounds of molybdenum at Total operating cost (C1) of US$2.66 per pound of copper produced. After mining

through lower grade and lower quality ore in the first half of 2025, second half production increased by 46% and returned to

more normal levels with copper grades of 0.24% and recoveries averaging 79% in the second half. Copper production in 2025

included 2.2 million pounds of copper cathode produced in Gibraltar’s SX/EW plant, which was restarted in May. Molybdenum

production for the fourth quarter and the year was significantly higher than previous periods, due to higher molybdenum grades

in the Connector Pit.

At Florence Copper, production of copper cathode commenced earlier this week with the startup of the electrowinning circuit.

The Florence SX/EW plant is fully operational and copper is now being plated. Injection of solutions commenced in the fourth

quarter and wellfield performance to date has met or exceeded expectations. Expansion of the wellfield will be required to

support the production ramp up to capacity, and drilling was restarted in the fourth quarter. There are currently three drill rigs

operating and a fourth arriving to site in the next week.

Stuart McDonald, President & CEO of Taseko, commented, “2025 was a productive and highly successful year for Florence

Copper. With construction and commissioning now behind us, we’re looking forward to the first cathode harvest in the coming

days. For the year ahead, the team’s focus will be ramping up the operation to production capacity. Results from the initial

wellfield operations are positive and we are targeting to produce 30 to 35 million pounds of copper in 2026. A key driver of the

ramp up will be our ability to expand the wellfield and bring additional wells into production through the year.” 

“Gibraltar finished 2025 with strong production and cash flows in the fourth quarter. Looking ahead to 2026, we expect higher

annual production and more consistent quarterly production, as mining activity is now well established in the Connector pit.

Total copper production for 2026 is expected to be in the range of 110 to 115 million pounds. This includes the expected

impact of supergene ore which has been affecting recoveries in previous pushbacks, as well as a more conservative forecast

for head grade based on mining experience to-date in the Connector pit. With the anticipated production increase at Gibraltar

and copper prices roughly 25% higher today than our average realized price in 2025, Gibraltar is positioned to generate

significantly stronger cashflows in 2026.

“Bringing our second mine into production will be a major accomplishment for the Company, and we’re looking forward to

ramping up Florence and demonstrating the true value of this asset. At the same time, we will continue to work to unlock value

from our other projects, Yellowhead and New Prosperity, which both achieved significant milestones in 2025,” concluded Mr.

McDonald.

2025 Annual Review

• Earnings from mining operations before depletion, amortization and non-recurring items* was $250.7 million, Adjusted

EBITDA* was $230.4 million and cash flow from operations was $219.6 million;

• Net loss was $30.1 million ($0.09 loss per share) and Adjusted net income* was $27.1 million ($0.07 adjusted earnings

per share);

• Gibraltar produced 98.1 million pounds of copper at a total operating cost (C1)* of US$2.66 per pound of copper

produced. Copper head grades averaged 0.22% and recoveries averaged 73%;

• Copper production included 2.2 million pounds of copper cathode from the Gibraltar SX/EW plant which was restarted in

May;

• Gibraltar sold 98.7 million pounds of copper at an average realized copper price of US$4.61 per pound contributing to

revenues of $672.9 million for Taseko;

• Construction activities at Florence Copper continued throughout 2025, completing in the fourth quarter on time and

largely on budget at US$275 million. During the 24-month construction period, there were approximately 1,000,000

project hours worked with no lost time injuries and no reportable incidents;

• In July, the Company filed an updated technical report for the Yellowhead project highlighting a 25 year mine life with an

average annual copper production of 178 million pounds at a total cash cost (C1) of US$1.90 per pound, and a net

present value of $2.0 billion (8% discount rate, US$4.25 per pound copper and US$2,400 per ounce gold). The

Company also announced that it had formally commenced the Environmental Assessment process for the Yellowhead

project; and

• In June, Taseko, Tŝilhqot’in Nation and the Province of BC reached an agreement concerning the New Prosperity

project. Taseko received a payment of $75 million from the Province of BC upon closing of the transaction.

Fourth Quarter Review

• Earnings from mining operations before depletion, amortization and non-recurring items* was $124.1 million, Adjusted

EBITDA* was $116.5 million and cash flow from operations was $101.2 million;

• Net income was $4.5 million ($0.01 earnings per share) and Adjusted net income* was $41.5 million ($0.11 adjusted

earnings per share);

• Gibraltar produced 30.7 million pounds of copper, including 0.9 million pounds of copper cathode, at a total operating

cost (C1)* of US$2.47 per pound of copper produced. Copper head grades averaged 0.26% and recoveries averaged

81%;

• Gibraltar sold 31.6 million pounds of copper at an average realized copper price of US$5.13 per pound contributing to

revenues of $243.8 million for Taseko;

• In October 2025, the Company closed an equity financing (the “Offering”) with a syndicate of underwriters pursuant to

which the Company issued 42.7 million common shares at a price of US$4.05 per share for gross proceeds of

US$172.8 million. Proceeds from the Offering were partially used to repay outstanding debt under the Company’s

revolving credit facility, with the remainder available for general corporate purposes; and

• The Company received the final approvals required to commence wellfield injection and recovery operations at Florence

Copper in October. Commercial wellfield acidification commenced in early November, and by early December mining

solutions were circulating in all the new production wells within the commercial wellfield. Production of copper cathode

commenced mid-February with the startup of the electrowinning circuit, and the Florence Copper SX/EW plant is now

fully operational with copper being plated.

Highlights

Operating data  

Three months ended

December 31,  

Year ended

December 31,

(Gibraltar – 100% basis)   2025   2024   Change    2025   2024   Change

Tons mined (millions)   28.0  24.0  4.0   110.9  88.3  22.6 

Tons milled (millions)   7.2   8.3   (1.1)   30.6  29.3  1.3 

Production (million pounds Cu)   30.7  28.6  2.1   98.1  105.6  (7.5)

Sales (million pounds Cu)   31.6  27.4  4.2   98.7  108.0  (9.3)

Financial data

(Cdn$ in thousands, except per share

amounts)

  Three months ended

December 31,  

Year ended

December 31,

  2025   2024   Change   2025   20241   Change

Revenues   243,767  167,799   75,968  672,904   608,093   64,811 

Cash flows from operations   101,234  73,292   27,942  219,558   232,615   (13,057)

Net income (loss)   4,454  (21,207)   25,661  (30,076)   (13,444)   (16,632)

Per share – Basic (“EPS”)   0.01  (0.07)   0.08  (0.09)   (0.05)   (0.04)

Earnings from mining operations before

depletion, amortization and non-recurring

items*

124,055  59,405   64,650  250,664   243,646   7,018 

Adjusted EBITDA*   116,464  55,602   60,862  230,424   223,991   6,433 

Adjusted net income*   41,525  10,468   31,057  27,141   56,927   (29,786)

Per share – Basic (“Adjusted EPS”)*   0.11  0.03   0.08  0.07   0.19   (0.12)

1Amounts for the year ended December 31, 2024 reflect the impact from the March 25, 2024 acquisition of Cariboo from Dowa

and Furukawa, which increased the Company’s effective interest in the Gibraltar mine from 87.5% to 100%.

Review of Operations

Gibraltar

Operating data (100%

basis)   Q4 2025   Q3 2025   Q2 2025   Q1 2025   Q4 2024    2025   2024

Tons mined (millions)     28.0     29.3     30.4     23.2     24.0      110.9     88.3 

Tons milled (millions)     7.2     7.8     7.7     7.9     8.3      30.6     29.3 

Strip ratio     2.2     1.5     2.3     4.6     1.9      2.3     1.6 

Site operating cost per ton

milled*  $ 16.61  $ 14.98  $ 11.23  $ 8.73  $ 12.18   $ 12.81  $ 12.93 

Copper concentrate                       

Head grade (%)     0.26     0.22     0.20     0.19     0.22      0.22     0.23 

Recovery (%)     80.9     77.2     63.2     67.5     78.2      72.8     78.5 

Production (million

pounds Cu)     29.8     26.7     19.4     20.0     28.6      95.9     105.6 

Sales (million pounds

Cu)     30.8     25.4     19.0     21.8     27.4      97.0     108.0 

Inventory (million pounds

Cu)     2.9     4.0     2.7     2.3     4.1      2.9     4.1 

Copper cathode                       

Production (thousand

pounds Cu)     919     895     395     –     –      2,209     – 

Sales (thousand pounds

Cu)     783     905     –     –     –      1,688     – 

Molybdenum

concentrate                       

Production (thousand

pounds Mo)     830     558     180     336     578      1,902     1,432 

Sales (thousand pounds

Mo)     953     421     178     364     607      1,916     1,434 

Per unit data (US$ per

Cu pound produced)1                       

Site operating cost*  $ 2.80  $ 3.09  $ 3.15  $ 2.41  $ 2.52   $ 2.86  $ 2.61 

By-product credit*     (0.59)     (0.39)     (0.19)     (0.33)     (0.42)      (0.40)     (0.28)

Site operating cost, net

of by-product credit*     2.21     2.70     2.96     2.08     2.10      2.46     2.33 

Off-property cost*     0.26     0.17     0.18     0.18     0.32      0.20     0.33 

Total operating cost (C1)

*  $ 2.47  $ 2.87  $ 3.14  $ 2.26  $ 2.42   $ 2.66  $ 2.66 

1 Copper pounds produced includes copper in concentrate and copper cathode.

Operations Analysis

Annual Results

Gibraltar mining operations were focused in the Connector pit during 2025, which is the primary source of mill feed for the next

few years. Mining rates increased approximately 25% year-over-year to 110.9 million tons in 2025, compared to 88.3 million

tons in 2024, with the higher mining rates attributable to increased operating hours and improved productivity of the haul truck

fleet.

Operations Analysis - Continued

Copper production was 98.1 million pounds in 2025, including 2.2 million pounds of copper cathode from the Gibraltar solvent

extraction and electrowinning (“SX/EW”) plant that was restarted in May. Mill throughput was 30.6 million tons for the year with

average copper head grades of 0.22% and copper recoveries of 73%, which steadily improved throughout the year as mining

advanced beyond the oxidized and supergene zones encountered in the initial phases of Connector pit. Copper production in

the second half of the year was a notable improvement over the first half of the year attributable to higher grades and better

quality ore.

Total site costs* were $473.2 million (including capitalized stripping of $80.9 million) in 2025, compared to $400.2 million

(including capitalized stripping of $32.5 million) in 2024. The increase in total site costs is a result of higher mining rates and

costs to restart and operate the Gibraltar SX/EW plant, which processes stockpiled oxide ore to produce copper cathode.

Molybdenum production increased to 1.9 million pounds in 2025 from 1.4 million pounds in 2024 primarily due to higher

molybdenum grades and improved recoveries. At an average molybdenum price of US$22.16 per pound for the year,

molybdenum contributed to a by-product credit of US$0.40 per pound of copper produced.

Off-property costs were US$0.20 per pound of copper produced in 2025, compared to US$0.33 per pound of copper produced

in 2024, and reflect Gibraltar’s favorable offtake agreements with average treatment and refining charges (“TCRC”) of around

$nil for the year.

Total operating costs (C1)* were US$2.66 per pound of copper produced in 2025, consistent with US$2.66 per pound of copper

produced in 2024. The impacts of higher capitalized stripping, lower TCRCs, and higher molybdenum sales were offset by

higher site operating costs due to higher mining rates, lower copper production, and the recommissioning and initial operation

of the Gibraltar SX/EW plant.

A graph accompanying this announcement is available at

https://www.globenewswire.com/NewsRoom/AttachmentNg/cb858308-cc1b-4954-b5d7-c9bd3c35baf8

Operations Analysis - Continued

Fourth Quarter Results

Mining continues to advance deeper into the Connector pit and benefit from improved copper grades and ore quality. A total of

28.0 million tons were mined in the fourth quarter, comparable to the previous quarter. The average strip ratio was 2.2 in the

fourth quarter, and in line with the life-of-mine average.

Mill throughput was 7.2 million tons in the fourth quarter and was impacted by unanticipated mill downtime due to unscheduled

maintenance activities and a serious accident which resulted in a temporary site wide shutdown in November.

Copper production increased to 30.7 million pounds (including 0.9 million pounds of copper cathode) in the fourth quarter,

compared to 27.6 million pounds (including 0.9 million pounds of copper cathode) in the previous quarter, driven by higher

copper head grades averaging 0.26% and copper recoveries averaging 81%.

Total site costs* were $125.6 million (including capitalized stripping of $6.0 million) in the fourth quarter, comparable to the

previous quarter.

Molybdenum production increased to 830 thousand pounds in the fourth quarter and reflects the higher molybdenum grades

realized in Connector pit ore. At an average molybdenum price of US$22.89 per pound for the quarter, molybdenum provided a

by-product credit of US$0.59 per pound of copper produced.

Off-property costs were US$0.26 per pound of copper produced and were higher than previous quarters due to the timing of

shipments with higher TCRC terms.

Total operating costs (C1)* were US$2.47 per pound of copper produced for the fourth quarter, lower than the prior quarter and

comparable to the prior year comparative quarter. Increased site operating costs from higher mining rates were offset by higher

copper production, improved molybdenum by-product credits, higher capitalized stripping costs, and lower TCRCs.

A graph accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/9bf3f498

-46c1-45d7-b356-038fe39fb691

*Non-GAAP performance measure. See end of news release.

Gibraltar Outlook

Mining activity over the last 18 months has been focused in the Connector Pit, which was the primary source of mill feed in

2025, and will continue to be the primary source of ore for the next three years (2026 through 2028). In recent months, head

grades in the Connector Pit have been 5% to 10% lower than originally expected due to the impact of small higher grade

zones that have not been realized through mining to date. In addition, oxide copper and metallurgically challenging supergene

ore has been more abundant in the Connector Pit than previously estimated, and recoveries in 2026 are expected to average

between 75% to 80% (similar to the second half of 2025). On a positive note, the additional oxide ore mined from Connector

Pit has been stacked on leach pads and will be processed in the Gibraltar SX/EW plant in the coming years. Taking all of

these factors into account, total copper production at Gibraltar for 2026 is expected to be in the range of 110 to 115 million

pounds and is expected to continue at similar levels (± 5%) until completion of mining in the Connector pit in mid-2029.

Molybdenum production in 2026 is expected to remain at similar levels to 2025, and with molybdenum prices stabilizing above

US$20.00 per pound we continue to expect strong molybdenum by-product credits.

The Company has offtake agreements covering substantially all of Gibraltar’s copper concentrate production for 2026, which

contain low and in certain cases negative TCRC rates reflecting the continued tight copper smelting market. Based on the

contract terms, the Company expects average TCRCs to be similar to 2025.

The Company has a prudent hedging program in place to protect a minimum copper price and Gibraltar cash flow during the

commissioning period and ramp-up of commercial operations at Florence Copper. Currently, the Company has copper collar

contracts in place with a floor of US$4.00 per pound and a ceiling of US$5.40 per pound for 54 million pounds of copper

production for the first half of 2026 and a floor of US$4.75 per pound and a ceiling of between US$7.50 and US$8.50 per pound

for 24 million pounds of copper production for the third quarter of 2026 (refer to “Financial Condition Review—Hedging Strategy”

for details).

Florence Copper

Florence Copper is an in-situ copper recovery (“ISCR”) operation, located in Arizona, USA, that will produce LME Grade A

copper metal without conventional open-pit mining or major surface disturbance. Florence Copper is projected to rank among

the lowest greenhouse gas (“GHG”) intensity primary copper producers in North America, delivering environmentally

responsible copper to North American manufacturers and consumers. The project is expected to commence commercial

production in early 2026, with production ramping up to 85 million pounds per year at full capacity.

Construction activities at Florence Copper were completed on time and largely on budget in the fourth quarter of 2025. The

focus of the operating team has transitioned to wellfield operations, commissioning of the SX/EW plant and the startup of

commercial production.

Commercial wellfield acidification commenced in early November, and by early December mining solutions were circulating in

all the new production wells within the commercial wellfield. Initial injection flowrates were above expectations resulting in

faster initial acidification of the wellfield. The grade of copper recovered in solution from the recovery wells continued to

increase, and the average solution grade reached the level required for SX/EW plant operations. Commissioning of the SX/EW

plant area advanced in parallel with initial wellfield operations, and plant operations commenced mid-February. Production of

copper cathode commenced mid-February with the startup of the electrowinning circuit. The Florence Copper SX/EW plant is

now fully operational and copper is being plated. The project team is focused on the successful ramp-up of operations in 2026,

and total production in 2026 is expected to be in the range of 30 to 35 million pounds of copper cathode.

Florence Copper - Continued

Wellfield drilling also re-commenced in late 2025 and by early 2026 there were three drill rigs operating on site with a fourth

drill rig being mobilized at site. Continued expansion of the commercial wellfield will be required to support higher solution

flows and increased copper production as the Florence Copper commercial operation progresses through the ramp-up in 2026.

Florence Copper capital spend

(US$ in thousands)  

Three months

ended

December 31,

2025  

Year ended

December 31,

2025

Commercial facility construction costs   8,016  119,644

Plant and site commissioning costs   3,636  3,636

Site and PTF operations   12,260   34,662

Total Florence Copper capital spend   23,912   157,942

Florence Copper commercial facility construction costs were US$8.0 million in the fourth quarter and US$119.6 million in

2025. Total construction costs for the Florence Copper commercial facility were US$274.6 million.

Long-term Growth Strategy

Taseko’s strategy has been to grow the Company by acquiring and developing a pipeline of projects focused on copper in

North America. We continue to believe this will generate long-term returns for shareholders. Our other development projects

are located in BC, Canada.

Yellowhead copper project

In July 2025, the Company published a new report titled “Technical Report Update on the Yellowhead Copper Project, British

Columbia, Canada” (the “Yellowhead 2025 Technical Report”). Based on the Yellowhead 2025 Technical Report, the

Yellowhead copper project is expected to produce 4.4 billion pounds of copper over a 25-year mine life at an average C1 cost,

net of by-product credit, of US$1.90 per pound of copper produced. During the first 5 years of operation, the Yellowhead project

is expected to produce an average of 206 million pounds of copper per year at an average C1 cost, net of by-product credit, of

US$1.62 per pound of copper produced. The Yellowhead project also contains valuable precious metal by-products with

282,000 ounces of gold production and 19.4 million ounces of silver production over the life of mine.

The economic analysis in the Yellowhead 2025 Technical Report was prepared using a copper price of US$4.25 per pound, a

gold price of US$2,400 per ounce, and a silver price of US$28.00 per ounce.

Long-term Growth Strategy - Continued

Project highlights based on the Yellowhead 2025 Technical Report are detailed below:

• Average annual copper production of 178 million pounds over a 25 year mine life at total cash costs (C1) of US$1.90 per

pound of copper produced;

• Over the first 5 years of the mine life, copper grade is expected to average 0.32% producing an average of 206 million

pounds of copper at total cash costs (C1) of US$1.62 per pound of copper produced;

• Concentrator designed to process 90,000 tonnes per day of ore with an expected copper recovery of 90%, and produce

a clean copper concentrate with payable gold and silver by-products;

• Conventional open pit mining with a low strip ratio of 1.4;

• After-tax net present value of $2.0 billion (8% after-tax discount rate) and after-tax internal rate of return of 21%;

• Initial capital costs of $2.0 billion with a payback period of 3.3 years; and

• Expected to be eligible for the Canadian federal Clean Technology Manufacturing Investment Tax Credit, with 30%

(approximately $540 million) of eligible initial capital costs reimbursed in year 1 of operation.

In June 2025, the Yellowhead project’s Initial Project Description was filed and accepted by the British Columbia

Environmental Assessment Office and Impact Assessment Agency of Canada, formally commencing the Environmental

Assessment process. The Company will continue to engage with project stakeholders to ensure that the development of the

Yellowhead Project is in line with environmental and social expectations. The Company opened a community office for the

Yellowhead project in 2024 to support ongoing engagement with local communities including First Nations.

New Prosperity copper-gold project

In June 2025, Taseko, the Tŝilhqot’in Nation and the Province of BC reached a historic agreement concerning the New

Prosperity project (the “Teẑtan Biny Agreement”). The Teẑtan Biny Agreement ends litigation among the parties while providing

certainty with respect to how the significant copper-gold resource at New Prosperity may be developed in the future.

Key elements of the Teẑtan Biny Agreement include:

• Taseko received a payment of $75 million from the Province of BC upon closing of the agreement;

• Taseko contributed a 22.5% equity interest in the New Prosperity mineral tenures to a trust for the future benefit of the

Tŝilhqot’in Nation. The trust will transfer the property interest to the Tŝilhqot’in Nation if and when it consents to a

proposal to pursue mineral development in the project area;

• Taseko retains a majority interest (77.5%) in the New Prosperity mineral tenures and can divest some or all of its

interest at any time, including to other mining companies that could advance a project with the consent of the

Tŝilhqot’in Nation. However, Taseko has committed not to be the proponent (operator) of mineral exploration and

development activities at New Prosperity, nor the owner of a future mine development;

• Taseko has entered into a consent agreement with the Tŝilhqot’in Nation, whereby no mineral exploration or

development activity can proceed in the New Prosperity project area without the free, prior and informed consent of the

Tŝilhqot’in Nation;

Long-term Growth Strategy - Continued

• The Province of BC and the Tŝilhqot’in Nation have agreed to negotiate the process by which the consent of the

Tŝilhqot’in Nation will be sought for any proposed mining project to proceed through an environmental assessment

process; and

• The Tŝilhqot’in Nation and the Province of BC have agreed to undertake a land-use planning process for the area of the

mineral tenures and a broader area of land within Tŝilhqot’in territory.

Aley niobium project

The converter pilot test is ongoing to provide additional process data to support the design of commercial process facilities. In

the fourth quarter, the Company produced on-spec ferro-niobium, and the process is now scaling up to provide product

samples to support marketing initiatives. The Company is also conducting a scoping study to investigate the potential for Aley

niobium oxide production to supply the growing market for niobium-based batteries.

Conference Call and Webcast

The Company will host a telephone conference call and live webcast on Thursday, February 19, 2026, at 11:00 a.m. Eastern

Time (8:00 a.m. Pacific) to discuss these results. After opening remarks by management, there will be a question and answer

session open to analysts and investors. The conference call may be accessed by dialing 800-715-9871 toll free or 646-307-

1963, using the access code 4873075.The webcast may be accessed at tasekomines.com/investors/events and will be

archived until February 19, 2027 for later playback.

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

Non-GAAP Performance Measures

This MD&A includes certain non-GAAP performance measures that do not have a standardized meaning prescribed by IFRS

Accounting Standards. These measures may differ from those used by, and may not be comparable to such measures as

reported by, other issuers. The Company believes that these measures are commonly used by certain investors, in

conjunction with conventional IFRS Accounting Standards measures, to enhance their understanding of the Company’s

performance. These measures have been derived from the Company’s financial statements and applied on a consistent basis.

The following tables below provide a reconciliation of these non-GAAP measures to the most directly comparable IFRS

Accounting Standards measures.

Total operating cost and site operating cost, net of by-product credit

Total operating cost includes all costs absorbed into inventory, as well as transportation costs and insurance recoverable. Site

operating cost is calculated by removing net changes in inventory, depletion and amortization, insurance recoverable, and

transportation costs from cost of sales. Site operating cost, net of by-product credit is calculated by subtracting by-product

credits from site operating cost. Site operating cost, net of by-product credit per pound is calculated by dividing the aggregate

of the applicable costs by pounds of copper produced. Total operating cost per pound is the sum of site operating costs, net of

by-product credits and off-property costs divided by pounds of copper produced. By-product credit is calculated based on

actual sales of molybdenum (net of treatment costs), silver and gold during the period divided by the total pounds of copper

produced during the period. These measures are calculated on a consistent basis for the periods presented.

(Cdn$ in thousands)   Q4 2025   Q3 2025   Q2 2025   Q1 2025    2025

Cost of sales     146,919     134,664     120,592     122,783      524,958 

Less:                           

Depletion and amortization     (27,207)     (27,876)     (25,210)     (22,425)      (102,718)

Changes in inventories of finished goods     (2,611)     1,425     2,123     (2,710)      (1,773)

Changes in inventories of ore stockpiles     13,473     16,685     (5,718)     (22,747)      1,693 

Transportation costs     (10,989)     (7,247)     (5,720)     (5,984)      (29,940)

Site operating costs     119,585     117,651     86,067     68,917      392,220 

Less by-product credits:                           

Molybdenum, net of treatment costs     (25,095)     (13,903)     (4,814)     (8,774)      (52,586)

Silver, excluding amortization of deferred

revenue     312     (295)     (58)     (131)      (172)

Gold     (619)     (761)     (351)     (389)      (2,120)

Site operating costs, net of by-product credits     94,183     102,692     80,844     59,623      337,342 

Total copper produced (thousand pounds)     30,712     27,593     19,813     19,959      98,077 

Total costs per pound produced (US$ per pound)    3.07     3.72     4.08     2.99      3.44 

Average exchange rate for the period (CAD/USD)    1.39     1.38     1.38     1.44      1.40 

Site operating costs, net of by-product credits

(US$ per pound)     2.21     2.70     2.96     2.08      2.46 

Site operating costs, net of by-product credits     94,183     102,692     80,844     59,623      337,342 

Add off-property costs:                           

Treatment and refining costs (premiums)     394     (512)     (837)     (510)      (1,465)

Transportation costs     10,989     7,247     5,720     5,984      29,940 

Total operating costs     105,566     109,427     85,727     65,097      365,817 

Total operating costs (C1) (US$ per pound)  $ 2.47  $ 2.87  $ 3.14  $ 2.26   $ 2.66 

Non-GAAP Performance Measures - Continued

(Cdn$ in thousands)   Q4 2024   Q3 2024   Q2 2024   Q1 20241    2024

Cost of sales     134,940     124,833     108,637     122,528      490,938 

Less:                           

Depletion and amortization     (24,641)     (20,466)     (13,721)     (15,024)      (73,852)

Changes in inventories of finished goods     4,064     2,938     (10,462)     (20,392)      (23,852)

Changes in inventories of ore stockpiles     (3,698)     9,089     1,758     2,719      9,868 

Transportation costs     (10,170)     (8,682)     (6,408)     (10,153)      (35,413)

Site operating costs     100,495     107,712     79,804     79,678      367,689 

Less by-product credits:                           

Molybdenum, net of treatment costs     (16,507)     (8,962)     (7,071)     (6,112)      (38,652)

Silver, excluding amortization of deferred

revenue     (139)     (241)     (144)     (137)      (661)

Site operating costs, net of by-product credits     83,849     98,509     72,589     73,429      328,376 

Total copper produced (thousand pounds)     28,595     27,101     20,225     26,694      102,615 

Total costs per pound produced (US$ per pound)    2.94     3.63     3.59     2.75      3.20 

Average exchange rate for the period (CAD/USD)    1.40     1.36     1.37     1.35      1.37 

Site operating costs, net of by-product credits

(US$ per pound)     2.10     2.66     2.62     2.04      2.33 

Site operating costs, net of by-product credits     83,849     98,509     72,589     73,429      328,376 

Add off-property costs:                           

Treatment and refining costs     2,435     816     3,941     4,816      12,008 

Transportation costs     10,170     8,682     6,408     10,153      35,413 

Total operating costs     96,454     108,007     82,938     88,398      375,797 

Total operating costs (C1) (US$ per pound)  $ 2.42  $ 2.92  $ 2.99  $ 2.46   $ 2.66 

1Amounts for Q1 2024 reflect the impact from the March 25, 2024 acquisition of Cariboo from Dowa and Furukawa, which

increased the Company’s effective interest in the Gibraltar mine from 87.5% to 100%.

Total site costs

Total site costs include site operating costs charged to cost of sales and mining costs capitalized to property, plant and

equipment in the period. This measure is intended to capture total site operating costs incurred during the period calculated on

a consistent basis for the periods presented.

(Cdn$ in thousands)   Q4 2025   Q3 2025   Q2 2025   Q1 2025    2025

Site operating costs (included in cost of

sales)   119,585   117,651   86,067   68,917    392,220

Capitalized stripping costs   5,986   6,106   30,765   38,082    80,939

Total site costs   125,571   123,757   116,832   106,999    473,159

(Cdn$ in thousands)   Q4 2024   Q3 2024   Q2 2024   Q1 2024    2024

Site operating costs (included in cost of

sales)   100,495   107,712   79,804   79,678    367,689

Capitalized stripping costs   1,981   3,631   10,732   16,152    32,496

Total site costs   102,476   111,343   90,536   95,830    400,185

Total site costs – 100% basis   102,476   111,343   90,536   109,520    413,875

Non-GAAP Performance Measures - Continued

Adjusted net income (loss) and Adjusted EPS

Adjusted net income (loss) removes the effect of the following transactions from net income (loss) as reported under IFRS

Accounting Standards:

• Unrealized foreign currency gains and losses;

• Unrealized gains and losses on derivatives;

• Other operating costs;

• Call premium on settlement of debt;

• Loss on settlement of debt, net of capitalized interest;

• Bargain purchase gains on Cariboo acquisition;

• Gain on acquisition of control of Gibraltar;

• Realized gain on sale of finished goods inventories;

• Realized gains on processing of ore stockpiles;

• Accretion on Florence royalty obligation;

• Accretion on Cariboo consideration payable;

• Tax effect of sale of non-controlling interest in New Prosperity; and

• Non-recurring other expenses for Cariboo acquisition.

Management believes that these transactions do not reflect the underlying operating performance of the Company’s core

mining business and are not necessarily indicative of future operating results. Furthermore, unrealized gains and losses on

derivative instruments, changes in the fair value of financial instruments, and unrealized foreign currency gains and losses are

not necessarily reflective of the underlying operating results for the periods presented.

Adjusted earnings per share (“Adjusted EPS”) is Adjusted net income attributable to common shareholders of the Company

divided by the weighted average number of common shares outstanding for the period.

(Cdn$ in thousands)   Q4 2025   Q3 2025   Q2 2025   Q1 2025    2025

Net income (loss)     4,454     (27,838)     21,868     (28,560)      (30,076)

Unrealized foreign exchange (gain) loss     (9,000)     14,287     (40,335)     2,074      (32,974)

Unrealized loss and fair value adjustments on

derivatives     37,676     14,977     9,489     23,536      85,678 

Accretion on Cariboo consideration payable     4,048     4,041     4,484     664      13,237 

Accretion on Florence royalty obligation     18,415     6,991     6,201     2,571      34,178 

Tax effect of sale of non-controlling interest in

New Prosperity     –     –     (9,285)     –      (9,285)

Estimated tax effect of adjustments     (14,068)     (6,874)     (5,447)     (7,228)      (33,617)

Adjusted net income (loss)     41,525     5,584     (13,025)     (6,943)      27,141 

Adjusted EPS  $ 0.11  $ 0.02  $ (0.04)  $ (0.02)   $ 0.07 

Non-GAAP Performance Measures - Continued

(Cdn$ in thousands)   Q4 2024   Q3 2024   Q2 2024   Q1 2024    2024

Net (loss) income     (21,207)     (180)     (10,953)     18,896      (13,444)

Unrealized foreign exchange loss (gain)     40,462     (7,259)     5,408     13,688      52,299 

Unrealized (gain) loss and fair value adjustments

on derivatives     (25,514)     1,821     10,033     3,519      (10,141)

Accretion on Cariboo consideration payable     4,543     9,423     8,399     1,555      23,920 

Accretion on Florence royalty obligation     3,682     3,703     2,132     3,416      12,933