HBM.TO · 2026-02-20

TSX, NYSE – HBM 2026 No. 4 Hudbay Delivers Record Fourth Quarter and Full Year 2025 Results; Achieves 2025 Consolidated Copper and Gold Production and Cost Guidance

Production Results Financials

Toronto, Ontario, February 20, 2026 – Hudbay Minerals Inc. (“Hudbay” or the “Company”) (TSX, NYSE: HBM) today released its fourth quarter and full year 2025 financial results and announced 2026 annual production and cost guidance. All amounts are in U.S. dollars, unless otherwise noted.

“2025 was a transformative year for Hudbay as we delivered record annual revenue of $2.2 billion and exceeded $1 billion in adjusted EBITDA, underpinned by our 11^th consecutive year of meeting consolidated copper production guidance,” said Peter Kukielski, President and Chief Executive Officer. “Our diversified operating platform demonstrated exceptional resilience, overcoming external challenges in Manitoba and Peru to generate over $380 million in free cash flow and achieving a third consecutive year of record financial performance. The fourth quarter underscored our commitment to operational excellence. We saw standout performance in Peru driven by high-grade Pampacancha ore, record throughput at the New Britannia mill in Manitoba, and the successful completion of the SAG mill feed system in British Columbia. We are particularly proud to have met our primary production targets for copper and gold while significantly outperforming our twice-improved cost guidance.

“Our prudent strategic financial planning and execution has enabled us to achieve our balance sheet deleveraging goals and lower our cost of capital. We now have the financial flexibility to sanction Copper World in 2026, embark on generational investments in our operating portfolio and commence increases in shareholder returns with our first-ever dividend increase as part of our holistic capital allocation framework. This will allow us to continue to deliver attractive growth and maximize long-term risk-adjusted returns for our stakeholders.”

Delivered Record Annual Revenue and Adjusted EBITDA; Achieved 2025 Consolidated Copper and Gold Production and Cost Guidance

Achieved record annual revenue of $2.2 billion and record annual adjusted EBITDAⁱ of $1.1 billion in 2025, demonstrating the resilience and strength of Hudbay’s diversified operating platform.
Achieved full year consolidated copper and gold production guidance, with 118,188 tonnes of copper and 267,934 ounces of gold, despite mandatory wildfire evacuations in Manitoba and temporary operational interruptions in Peru resulting in production deferrals during the year.
2025 represents the 11^th consecutive year in which Hudbay achieved its annual consolidated copper production guidance, since Constancia declared commercial production, and the 5^th consecutive year achieving its annual consolidated gold production guidance, since establishing standalone gold production guidance^v.
Significantly outperformed the twice-improved 2025 consolidated cash cost guidance driven by strong cost control, higher metal prices and meaningful exposure to gold by-product credits resulting in consolidated cash costⁱ and sustaining cash costⁱ, net of by-product credits, of $(0.22) and $1.30 per pound of copper, respectively, in 2025, an improvement of 148% and 20%, respectively, compared to 2024.
Peru operations produced 85,155 tonnes of copper and 74,480 ounces of gold in 2025 with full year copper production within the 2025 guidance range while gold production far exceeded the top end of the annual guidance range. This production output was attributable to the optimization of the mine plan in 2025 by prioritizing Pampacancha mining activities and fully depleting the high-grade satellite deposit in December. Peru also leveraged the use of stockpiled ore during the third quarter of 2025 as the Company adapted its mine plan due to the social unrest experienced in the region. Peru full year cash costⁱ of $1.08 per pound of copper outperformed the low end of the 2025 annual guidance range of $1.35 to $1.65 per pound as a result of stable operating cost performance and higher by-product credits.
Manitoba operations produced 173,453 ounces of gold, 9,249 tonnes of copper, 17,646 tonnes of zinc and 800,198 ounces of silver in 2025. Production was below the low end of the guidance range for gold and zinc, while copper and silver production was within the guidance range in 2025. These production levels were achieved despite the impacts of over two months of production deferrals due to wildfire evacuations, ramp-up activities throughout the summer and unexpected downtime from an eight-day weather-related power outage in October. In addition, zinc production was lower than the guidance range as gold production was prioritized in Manitoba. Manitoba full year cash costⁱ of $549 per ounce of gold outperformed the low end of the 2025 annual guidance range of $650 to $850 per ounce as a result of productivity gains and lower treatment and refining charges.
British Columbia operations produced 23,784 tonnes of copper, 20,001 ounces of gold and 252,811 ounces of silver in 2025. Copper production was below the low end of the production guidance range, while the operations achieved full year 2025 production guidance for gold and silver. Copper production in 2025 was impacted by reduced throughput at the primary semi-autogenous grinding ("SAG") mill in the fourth quarter of 2025 and a higher portion of low-grade stockpiles utilized as ore feed in 2025. British Columbia full year cash costⁱ of $3.06 per pound of copper achieved the 2025 annual cost guidance range of $2.45 to $3.45 per pound.

Delivered Strong Fourth Quarter Financial Results Driven by Resilient Operating Performance

Achieved record quarterly revenue of $732.9 million and record quarterly adjusted EBITDAⁱ of $385.9 million in the fourth quarter of 2025.
Demonstrated strong operational performance in the fourth quarter of 2025 as operations normalized after temporary production interruptions in the third quarter with consolidated copper production of 33,069 tonnes and consolidated gold production of 84,298 ounces.
Maintained industry-leading cost performance in the fourth quarter with consolidated cash costⁱ and sustaining cash costⁱ per pound of copper produced, net of by-product credits, of $(0.63) and $0.94, respectively.
Peru operations had the strongest quarter of the year in the fourth quarter with production of 25,038 tonnes of copper, 32,865 ounces of gold and 731,017 ounces of silver as strong copper and gold grades were mined from Pampacancha and less ore was processed from low-grade stockpiles. Hudbay continued to optimize the mine plan during the quarter with more ore mined from Pampacancha than previously expected, resulting in the accelerated depletion of Pampacancha in late December compared to early 2026. Peru cash costⁱ, net of by-product credits, was $0.57 per pound of copper in the fourth quarter, outperforming the low end of the annual cost guidance range.
Manitoba operations produced 47,423 ounces of gold in the fourth quarter, slightly lower than quarterly cadence expectations due to unplanned down time in October from an eight-day weather-related power outage, offset by record monthly throughput at the New Britannia mill in December. Manitoba operations also produced 3,326 tonnes of copper, 5,703 tonnes of zinc and 214,493 ounces of silver in the fourth quarter. Manitoba cash costⁱ, net of by-product credits, was $705 per ounce of gold in the fourth quarter, well within the annual cost guidance range.
British Columbia operations produced 4,705 tonnes of copper, 4,010 ounces of gold and 57,475 ounces of silver in the fourth quarter. While the operations completed construction of the permanent feed system for the new second SAG mill in December, total throughput in the fourth quarter was constrained by the primary SAG mill requiring unplanned maintenance early in the fourth quarter of 2025. British Columbia cash costⁱ, net of

by-product credits, was $4.82 per pound of copper in the fourth quarter, reflecting the production impacts from the primary SAG mill maintenance.

Fourth quarter net earnings attributable to owners and earnings per share attributable to owners were $128.0 million and $0.32, respectively, reflecting the strong gross margins as a result of higher metal prices and a $25.0 million business interruption insurance recovery related to the mandatory wildfire evacuations in Manitoba during the year. After adjusting for the insurance recovery and other non-cash items, fourth quarter adjusted earningsⁱ per share attributable to owners was $0.22.
The strong gross margins achieved in the fourth quarter of 2025 resulted in higher employee profit sharing expenses of $36.1 million recorded within cost of sales.

Achieved Deleveraging Targets Ahead of Schedule

Hudbay's unique copper and gold diversification across its operations provides exposure to higher copper and gold prices, which together with a focus on cost control across the business, continues to expand margins and generate attractive free cash flow.
While the majority of Hudbay’s revenue continue to be derived from copper production, revenue from gold production continues to represent a growing portion of total revenues at 38% of total revenue in 2025, including 41% of revenue in the fourth quarter, compared to 35% in 2024.
Delivered another quarter of record free cash flowⁱ generation with $228.2 million achieved during the fourth quarter of 2025, resulting in $387.9 million in free cash flow in 2025.
Achieved adjusted EBITDAⁱ of $385.9 million in the fourth quarter of 2025, resulting in record annual adjusted EBITDAⁱ of $1,060.9 million.
Repurchased and retired an additional $39.3 million of senior unsecured notes through open market purchases at a discount to par during the fourth quarter of 2025 reducing total debt to $1.0 billion as of December 31, 2025. Since the end of 2024, Hudbay has reduced its long-term debt by $185.1 million.
Net debtⁱ decreased by $86.0 million to $439.7 million as at December 31, 2025 compared to $525.7 million at December 31, 2024.
Net debt to adjusted EBITDA ratioⁱ was 0.4x at the end of the fourth quarter of 2025, a further improvement from 0.6x at the end of the fourth quarter of 2024.
After giving effect to the recent closing of the Copper World joint venture transaction, which occurred in January 2026, Hudbay’s post-closing adjusted cash and cash equivalents as at December 31, 2025 were approximately $992 millionⁱⁱ. In addition, Hudbay had undrawn availability of $424.8 million under its revolving credit facilities as of December 31, 2025, increasing its total post-closing adjusted liquidity to over $1.4 billionⁱⁱ.

Implementing Holistic Capital Allocation Framework to Maintain Strong Financial Discipline, Deliver Growth Initiatives and Maximize Long-term Risk-adjusted Returns

Enhanced Capital Allocation Framework embedded into Hudbay’s annual financial planning cycle to provide a holistic approach to capital allocation decisions, including capital deployment into brownfield projects, greenfield projects, strategic investments and exploration, while considering debt repurchases, share buybacks and dividends.
Hudbay’s recent financial transformation has positioned the Company to introduce a new quarterly dividend of C$0.01 per share, an annual increase of 100% compared to the former semi-annual C$0.01 per share dividend, representing the Company’s first dividend increase in its history.
Closed the accretive $600 million joint venture transaction with Mitsubishi Corporation (“Mitsubishi”) in January 2026, securing a premier, long-term 30% strategic partner for the development of Copper World. Definitive feasibility study on track for completion in mid-2026 with a sanctioning decision expected in 2026.
Ongoing optimization efforts at Copper Mountain include executing an accelerated stripping campaign to deliver higher grades starting in 2027 and mill improvement initiatives to achieve the permitted mill throughput capacity of 50,000 tonnes per day in the second half of 2026.
Expected to deliver higher mill throughput rates at Constancia in the second half of 2026 with the installation of pebble crushers.
Continued large Snow Lake exploration program to further increase near-term production and mineral reserves, test regional satellite deposits for additional mill feed to utilize available capacity at Stall and explore the large land package for a new anchor deposit to meaningfully extend mine life.
Underground infrastructure established at the 1901 deposit to enable exploration drilling throughout 2026 and prepare for full production by the end of 2027.
Drilling activities have increased at the copper-gold-zinc Talbot deposit near Snow Lake with six drill rigs deployed and several step-out drill holes indicating resource expansion potential.
Engineering work advances on the Flin Flon tailings reprocessing opportunity to assess the economic viability of producing critical minerals and precious metals and the potential to reduce the overall environmental footprint.
Advancing plans to initiate a pre-feasibility study for the Mason copper project in Nevada.

2026 Guidance Reflects Stable Copper and Gold Production at Industry-leading Margins

Consolidated copper production of 124,000 tonnes, based on the midpoint of the 2026 guidance range, is expected to increase by 5% compared to 2025 levels, reflecting higher expected production in British Columbia with the anticipated mill throughput ramp-up to the targeted 50,000 tonnes per day in the second half of 2026, partially offset by lower grades in Peru with the depletion of Pampacancha in 2025.
Consolidated gold production of 244,500 ounces, based on the midpoint of the 2026 guidance range, is expected to be lower than 2025 production, reflecting the depletion of Pampacancha in 2025, but higher in unstreamed gold ounces with higher gold production in Manitoba from mill throughput at New Britannia continuing to exceed expectations.
Consolidated cash costⁱ, net of by-product credits, in 2026 is expected to be within ($0.30) to ($0.10) per pound of copper, benefiting from higher gold production and a continued focus on maintaining stable operating costs across the business, driving industry-leading margins.
Total sustaining capital expenditures are expected to be $435 million in 2026, reflecting approximately $38 million in deferrals from 2025 and $44 million in one-time sustaining capital projects at the operations.
As the Company embarks on generational reinvestments, total growth capital expenditures at the operations are expected to be $140 million in 2026, including approximately $23 million in deferrals from 2025, to advance several high-return growth projects in 2026 to deliver increased copper exposure, including Peru mill throughput enhancement projects, early works at the New Ingerbelle expansion project in British Columbia, and excludes growth capital related to the Copper World joint venture.
Growth capital expenditures at Copper World are expected to be $135 million in 2026 for project feasibility, de-risking and pre-sanctioning costs, which have been fully funded by the proceeds received from Mitsubishi as part of the closing of the Copper World joint venture transaction in January 2026, and include approximately $60 million for accelerated long lead items and de-risking activities and $35 million of capital deferrals from 2025.

Summary of Fourth Quarter Results

Hudbay's diversified asset portfolio delivered consolidated copper production of 33,069 tonnes and consolidated gold production of 84,298 ounces in the fourth quarter of 2025. Consolidated copper and gold production was higher than the third quarter of 2025 due to strong copper and gold grades from Pampacancha and less ore processed from lowgrade stockpiles compared to the third quarter. Consolidated gold production also benefitted from the ramp up to full operations in Snow Lake after the mandatory wildfire evacuations were lifted in the third quarter of 2025 and record monthly throughput at the New Britannia mill in December. Consolidated silver production of 1,002,985 ounces and zinc production of 5,703 tonnes in the fourth quarter of 2025 were also higher than the third quarter of 2025 for the aforementioned reasons.

Cash generated from operating activities of $209.4 million increased compared to the third quarter of 2025 as a result of higher gross margins driven by strong metal prices and higher sales volumes compared to the third quarter which was impacted by mandatory wildfire evacuations in Manitoba and a temporary operational interruption in Peru. Operating cash flow before change in non-cash working capital was $336.9 million during the fourth quarter of 2025, reflecting an increase of $266.6 million from the third quarter of 2025. This significant increase reflects higher copper and gold sales volumes from normalized operations after temporary interruptions and higher metal prices.

Adjusted EBITDAⁱ was $385.9 million in the fourth quarter of 2025, an increase compared to $142.6 million in the third quarter of 2025 as higher realized metal prices and higher copper and gold sales volumes resulted in strong gross margins during the quarter.

Net earnings attributable to owners was $128.0 million, or $0.32 per share, in the fourth quarter of 2025 compared to $222.4 million, or $0.56 per share, in the third quarter of 2025. The decrease in earnings compared to the third quarter is a result of a non-cash after-tax gain of $242.7 million from a full impairment reversal relating to Hudbay's Copper World project that occurred in the prior quarter.

Adjusted net earnings attributable to ownersⁱ and adjusted net earnings per share attributable to ownersⁱ in the fourth quarter of 2025 were $86.0 million and $0.22 per share, respectively, after adjusting for various non-cash items on a pre-tax basis including a $25.0 million business interruption insurance recovery related to the Manitoba mandatory wildfire evacuations during the year, a $5.7 million mark-to-market revaluation gain on various instruments such as investments and share-based compensation, and a non-cash $5.4 million foreign exchange gain, among other items. This increased compared to adjusted net earnings per share attributable to ownersⁱ of $10.1 million and $0.03 per share in the third quarter of 2025 is a result of higher realized metal prices and higher sales volumes.

Consolidated cash costⁱ, net of by-product credits, was $(0.63) per pound of copper in the fourth quarter of 2025, compared to $0.42 per pound in the third quarter of 2025, as Hudbay continued to demonstrate strong cost control across its operations. The decrease in cash cost from the third quarter was a result of higher by-product credits reflecting the benefits of the Company’s diversified asset portfolio with higher realized prices across all metals.

Consolidated sustaining cash costⁱ, net of by-product credits, was $0.94 per pound of copper in the fourth quarter of 2025, which decreased compared to $2.09 per pound in the third quarter of 2025, due to the same factors impacting consolidated cash cost, partially offset by planned higher cash sustaining capital expenditures.

Consolidated all-in sustaining cash costⁱ, net of by-product credits, was $1.43 per pound of copper in the fourth quarter of 2025, lower than the third quarter of 2025 mainly due to the same reasons impacting consolidated cash cost and sustaining cash cost, partially offset by higher corporate general and administrative (“G&A”) costs from the revaluation of Hudbay's stock-based compensation due to a higher share price.

As at December 31, 2025, total liquidity was $993.7 million, including $568.9 million in cash and cash equivalents and undrawn availability of $424.8 million under Hudbay's revolving credit facilities. Net debtⁱ at the end of the fourth quarter was $439.7 million, marking an $86.0 million improvement from the fourth quarter of 2024 as a result of deleveraging activities which included the repurchase and retirement of senior unsecured notes. After giving effect to the closing of the Copper World joint venture transaction, post-closing cash and cash equivalents as of December 31, 2025 are approximately $992 millionⁱⁱ, total post-closing adjusted liquidity increases to over $1.4 billionⁱⁱ and post-closing net debtⁱ is approximately zero.

Summary of Full Year Results

Hudbay achieved 2025 consolidated production guidance for copper and gold, with full year production of 118,188 tonnes of copper and 267,934 ounces of gold. In 2025, the operations also produced 17,646 tonnes of zinc, 3,468,143 ounces of silver and 1,282 tonnes of molybdenum. 2025 represents the 11^th consecutive year in which Hudbay achieved its annual consolidated copper production guidance, since Constancia declared commercial production, and 5^th consecutive year achieving its annual consolidated gold production guidance, since establishing standalone gold production guidance^v.

With respect to Hudbay’s operating business units, Peru exceeded the top end of the gold production guidance and achieved the guidance ranges for copper despite the impact from the temporary operational interruption due to social unrest. While Hudbay was previously tracking within the guidance ranges in Manitoba despite the wildfires, gold and zinc production fell below the low end of the respective ranges as a result of an eight-day weather-related power outage in October. Manitoba achieved guidance for copper and silver production despite these interruptions. British Columbia achieved guidance for gold and silver production, while copper production fell below the low end of the guidance range, primarily due to unplanned maintenance at the primary SAG mill in the fourth quarter and a higher portion of low-grade stockpiles utilized as ore feed in 2025.

Cash generated from operating activities increased to $707.3 million in 2025 from $666.2 million in 2024. Operating cash flow before change in non-cash working capital increased to a record $764.3 million in 2025 from $691.1 million in 2024. The increase in operating cash flow before changes in working capital was primarily the result of higher gross margins driven by higher metal prices and stable cost performance despite temporary operational interruptions during the year. This was partially offset by a significant increase in cash taxes paid of $268.4 million, compared to $132.5 million in 2024, reflecting earlier periods of high taxable income mainly at the Peru and Manitoba operations.

Adjusted EBITDAⁱ was $1,060.9 million in 2025, a 29% increase compared to $822.5 million in 2024, achieving a new annual record. The increase was the result of higher realized metal prices and stable operating performance, driving strong cost control across the business.

Net earnings attributable to owners were $568.5 million, or $1.44 per share, in 2025, compared to $76.7 million, or $0.20 per share, in 2024. Net earnings were positively impacted by higher realized prices for all metals and a non-cash charge of $242.7 million relating to an impairment reversal with respect to the Copper World project in 2025, partially offset by higher mining and income tax expenses.

Adjusted net earnings attributable to ownersⁱ and adjusted net earnings per share attributable to ownersⁱ in 2025 were $265.5 million and $0.67 per share, respectively, after adjusting for items on a pre-tax basis such as a $322.3 million impairment reversal with respect to the Copper World project, $25.0 million in business interruption insurance recovery related to the Manitoba wildfires, $18.6 million in foreign exchange gains, and $14.9 million in consideration received from sale of a non-core project, among other items. This compares to adjusted net earnings attributable to ownersⁱ and net earnings per share attributable to ownersⁱ of $181.4 million and $0.48 per share in 2024.

Consolidated cash costⁱ, net of by-product credits, was $(0.22) per pound of copper, compared to $0.46 per pound in 2024. Hudbay significantly outperformed its twice-improved 2025 consolidated cash cost guidance as a result of higher metal prices with a significant increase in gold by-product credits, partially offset by higher G&A due to higher employee profit sharing in Peru and Manitoba.

Consolidated sustaining cash costⁱ, net of by-product credits, of $1.30 per pound of copper in 2025 decreased from $1.62 per pound in 2024 due to the same reasons affecting cash cost, partially offset by higher cash sustaining capital expenditures. Hudbay outperformed the improved 2025 consolidated sustaining cash cost guidance as a result of the same reasons driving the outperformance on cash cost guidance.

Consolidated all-in sustaining cash costⁱ, net of by-product credits, was $1.74 per pound of copper in 2025, lower than $1.88 per pound in 2024 as a result of the same reasons outlined above, partially offset by higher corporate selling and administrative costs primarily due to a revaluation of share-based compensation associated with a higher share price.

Consolidated Financial Condition Dec. 31, 2025 Sep. 30, 2025 Dec. 31, 2024 (in $ millions, except net debt to adjusted EBITDA ratio)

568.9

Cash and cash equivalents and short-term investments 611.1 581.8

Total long-term debt	1,008.6	1,047.0	1,107.5
Net debt1	439.7	435.9	525.7
Working capital2	(65.6)	(34.7)	511.3
Total assets	6,223.3	5,916.8	5,487.6
Equity attributable to owners of the Company		3,080.5	2,553.2

3,231.0

Net debt to adjusted EBITDA¹ 0.4 0.5 0.6 1 Net debt and net debt to adjusted EBITDA are non-GAAP financial performance measures with no standardized definition under IFRS. For further information, please see the "Non-GAAP Financial Performance Measures" section of this news release.

2 Working capital is determined as total current assets less total current liabilities as defined under IFRS and disclosed on the consolidated financial statements. Working capital as of December 31, 2025 was impacted by an increase in the current portion of long-term debt of $472.1 million as the 2026 Notes are now maturing within one year.

Consolidated Financial Performance Three Months Ended (in $ millions) Dec. 31, Sep. 30, Dec. 31, 2025 2025 2024

Year Ended Dec. 31, Dec. 31, 2025 2024

Revenue 732.9 346.8 584.9 Cost of sales 462.8 281.5 400.5 Earnings before tax 257.1 330.5 103.7 Net earnings 128.0 222.4 19.3 Net earnings attributable to owners 128.0 222.4 21.2 Basic and diluted attributable earnings per 0.32 0.56 0.05 share Adjusted earnings attributable per share1 0.22 0.03 0.18 Operating cash flow before change in non- 336.9 70.3 231.5 cash working capital Adjusted EBITDA1 385.9 142.6 257.3 Free cash flow1 228.2 (15.2) 149.0

2,211.0 2,021.2 1,467.8 1,467.4 912.0 251.6 564.3 67.8 568.5 76.7 1.44 0.20 0.67 0.48 764.3 691.1 1060.9 822.5 387.9 368.0

1 Adjusted earnings attributable per share, adjusted EBITDA and free cash flow are non-GAAP financial performance measures with no standardized definition under IFRS. For further information, please see the “Non-GAAP Financial Performance Measures” section of this news release.

Consolidated Production and Cost Performance Three Months Ended Dec. 31, Sep. 30, Dec. 31, 2025 2025 2024	Year Ended Dec. 31, Dec. 31, 2025 2024
Contained metal in concentrate and doré produced1 Copper tonnes 33,069 24,205 43,262 Gold ounces 84,298 53,581 94,161 Silver ounces 1,002,985 730,394 1,311,658 Zinc tonnes 5,703 548 8,385 Molybdenum tonnes 325 185 195	118,188 137,943 267,934 332,240 3,468,143 3,983,851 17,646 33,339 1,282 1,323
Payable metal sold Copper tonnes 34,132 18,280 37,927 Gold2 ounces 84,424 38,279 92,734 Silver2 ounces 871,006 418,418 1,150,518 Zinc tonnes 3,972 3,452 5,261 Molybdenum tonnes 190 269 182	114,534 125,094 260,261 335,342 3,190,552 3,549,816 15,152 25,120 1,334 1,287
Consolidated cash cost per pound of copper produced3 Cash cost $/lb (0.63) 0.42 0.45 Sustaining cash cost $/lb 0.94 2.09 1.37 All-in sustaining cash $/lb 1.43 2.78 1.53	(0.22) 0.46 1.30 1.62 1.74 1.88

1 Metal reported in concentrate is prior to deductions associated with smelter contract terms.

2 Includes total payable gold and silver in concentrate and in doré sold and other secondary products.

3 Cash cost, sustaining cash cost and all-in sustaining cash cost per pound of copper produced, net of by-product credits are non-GAAP financial performance measures with no standardized definition under IFRS. For further information, please see the “Non-GAAP Financial Performance Measures” section of this news release.

Peru Operations Review

Peru Operations Three Months Ended Dec. 31, Sep. 30, Dec. 31, 2025 2025 2024	Year Ended Dec. 31, Dec. 31, 2025 2024
Constancia ore mined1 tonnes 5,610,915 564,579 4,186,058 Copper % 0.31 0.25 0.40 Gold g/tonne 0.03 0.02 0.04 Silver g/tonne 3.27 1.92 3.88 Molybdenum % 0.01 0.01 0.02 Pampacancha ore mined1 tonnes 4,152,000 4,260,081 4,037,264 Copper % 0.43 0.38 0.63 Gold g/tonne 0.27 0.31 0.38 Silver g/tonne 4.84 4.87 6.43 Molybdenum % 0.01 0.01 0.00	21,539,089 15,046,190 0.31 0.34 0.03 0.04 3.18 3.08 0.02 0.01 9,563,442 9,317,499 0.40 0.55 0.29 0.32 4.78 5.61 0.01 0.01
Total ore mined tonnes 9,762,915 4,824,660 8,223,322 Strip ratio2 0.57 1.38 1.22	31,102,531 24,363,689 1.04 1.78
Ore milled tonnes 7,627,853 6,991,744 7,999,453 Copper % 0.39 0.31 0.48 Gold g/tonne 0.18 0.16 0.20 Silver g/tonne 4.19 3.94 5.28 Molybdenum % 0.01 0.01 0.01	30,292,668 31,933,624 0.33 0.36 0.11 0.14 3.72 3.84 0.01 0.01
Copper recovery % 84.5 83.2 87.8 Gold recovery % 74.7 72.1 73.3 Silver recovery % 71.1 65.2 71.4 Molybdenum recovery % 38.8 33.9 37.1	84.3 85.0 69.2 70.7 66.7 68.8 37.4 41.7
Contained metal in concentrate Copper tonnes 25,038 18,114 33,988 Gold ounces 32,865 26,380 38,079 Silver ounces 731,017 577,446 969,502 Molybdenum tonnes 325 185 195	85,155 99,001 74,480 98,226 2,415,134 2,708,262 1,282 1,323
Payable metal sold Copper tonnes 28,361 11,769 28,775 Gold ounces 37,874 9,798 37,459 Silver ounces 650,384 258,215 824,613 Molybdenum tonnes 190 269 182	84,438 88,138 71,755 103,364 2,239,832 2,343,820 1,334 1,287
Combined unit operating $/tonne 14.51 13.03 15.25 cost3,4,5 Cash cost4,6 $/lb 0.57 1.30 1.00 Sustaining cash cost4 $/lb 1.53 2.11 1.48	13.02 12.91 1.08 1.18 2.02 1.86

1 Reported tonnes and grade for ore mined are estimates based on mine plan assumptions and may not reconcile fully to ore milled. 2 Strip ratio is calculated as waste mined divided by ore mined.

3 Reflects combined mine, mill and G&A costs per tonne of ore milled. Reflects the deduction of expected capitalized stripping costs. 4 Combined unit operating cost, cash cost and sustaining cash cost per pound of copper produced, net of by-product credits, are non- GAAP financial performance measures with no standardized definition under IFRS. For further information, please see the “Non-GAAP Financial Performance Measures” section of this news release.

5 Excludes approximately $1.3 million or $0.17 per tonne of overhead costs incurred during temporary suspension during the three months ended December 31, 2025, $7.3 million or $1.04 per tonne during the three months ended September 30, 2025 and $8.6 million or $0.28 per tonne during the year ended December 31, 2025.

6 Excludes approximately $1.3 million or $0.02 per pound of overhead costs incurred during temporary suspension during the three months ended December 31, 2025, $7.3 million or $0.19 per pound during the three months ended September 30, 2025 and $8.6 million or $0.05 per pound during year ended December 31, 2025.

Peru operations had its strongest quarter of the year in the fourth quarter, with continued strong copper and gold grades from Pampacancha and less ore processed from low-grade stockpiles compared to the third quarter of 2025. The Company continued to optimize the mine plan in the fourth quarter with more ore mined from Pampacancha than previously expected, resulting in the accelerated depletion of Pampacancha in late December as opposed to early 2026 and enabling Hudbay to exceed the top end of the 2025 Peru gold guidance range.

During the fourth quarter of 2025, the Peru operations produced 25,038 tonnes of copper, 32,865 ounces of gold, 731,017 ounces of silver and 325 tonnes of molybdenum. Production of copper, gold and silver increased by 38%, 25% and 27%, respectively, compared to the third quarter of 2025. Production of all metals was higher primarily due to higher ore milled as the third quarter was impacted by a temporary operational interruption due to social unrest. Hudbay temporarily suspended Constancia operations from September 22^nd to October 3^rd as a result of illegal protests at the mine and as a precaution to ensure the safety of personnel and community members. Production of molybdenum was higher in the fourth quarter of 2025 due to higher recoveries and additional tonnes of ore milled in the molybdenum plant.

Despite the impacts from social unrest in the third quarter, Hudbay achieved its 2025 production guidance for copper and gold in Peru, with gold production exceeding the top end of the 2025 guidance range by 24%. Production of silver and molybdenum fell slightly short of the lower end of guidance. Full year 2025 production of copper, gold, silver and molybdenum was 85,155 tonnes, 74,480 ounces, 2,415,134 ounces, and 1,282 tonnes, respectively, representing a decrease of 14%, 24%, 11% and 3%, respectively, from the comparative 2024 period primarily due to fewer tonnes of ore milled in the current period due to the aforementioned temporary operational interruption in the third quarter of 2025 and lower grades from higher amounts of ore processed from stockpile.

Total ore mined in the fourth quarter was 102% higher than the third quarter of 2025, a sizable increase due to the impacts from social unrest during the third quarter. Mining activities in the Pampacancha pit were completed during the fourth quarter and the remaining stockpiled Pampacancha ore was fully processed during January 2026.

Total mill throughput increased to 7.6 million tonnes during the fourth quarter of 2025, higher than the third quarter of 2025 due to higher mechanical availability as the prior quarter was impacted by the temporary operational interruption due to social unrest, partially offset by a scheduled semi-annual mill maintenance shutdown in the fourth quarter of 2025. Milled copper grades increased by 26% compared to the third quarter 2025, primarily due to higher grades from Pampacancha and less ore processed from stockpiles. Milled gold grades increased compared to the third quarter of 2025 due to a higher portion of ore feed from Pampacancha where the gold grades are meaningfully higher than at Constancia. Copper recoveries of 85% in the fourth quarter of 2025 were higher compared to the third quarter of 2025 due to the different proportions of ore feed from stockpiles and pits. Recoveries of gold and silver during the fourth quarter of 2025 were in line with Hudbay's metallurgical models for the ore that was being processed.

The Company continues to advance the installation of pebble crushers in Peru to increase mill throughput rates starting in the second half of 2026, which will allow Constancia to deliver steady annual copper production despite lower grades from the depletion of Pampacancha. Hudbay’s efforts to increase mill throughput align with the Peru Ministry of Energy and Mines’ regulatory change to allow mining companies to operate up to 10% above permitted levels.

Combined mine, mill and G&A unit operating cost in the fourth quarter of 2025 was $14.51 per tonne, 11% higher than the third quarter of 2025 due to higher fuel consumption associated with additional tonnes of material moved, higher water management and dewatering costs, and higher milling costs associated with the scheduled semi-annual mill maintenance program, partially offset by additional tonnes milled. Combined mine, mill and G&A unit operating cost for the full year 2025 was $13.02 per tonne, which was consistent with 2024.

Cash costⁱ, net of by-product credits, in the fourth quarter of 2025 was $0.57 per pound of copper, a 56% decrease compared to the third quarter of 2025, as a result of higher gold by-product credits, partially offset by higher profit sharing. Full year 2025 cash costⁱ, net of by-product credits, was $1.08 per pound of copper, outperforming the low end of the Peru cash cost guidance range and representing a 8% improvement from 2024 due to lower treatment and refining charges and higher by-product credits from gold, partially offset by higher profit sharing and lower pounds of copper produced due to the impacts from social unrest in the third quarter.

Sustaining cash costⁱ, net of by-product credits, was $1.53 per pound of copper in the fourth quarter of 2025, a 27% decrease compared to the third quarter of 2025 due to higher gold by-product credits, partially offset by higher capital spending as a result of timing of sustaining capitalized expenditures, higher community payments and increased lease payments. Full year 2025 sustaining cash costⁱ, net of by-products credits, was $2.02 per pound copper, higher than $1.86 per pound in 2024 due to lower grade, higher planned mine maintenance, higher lease payments, and higher payments to communities. This was partially offset by lower treatment and refining charges and higher by-product credits from gold.

Fourth quarter copper, gold and silver metal sold was higher than the third quarter of 2025 primarily due to the shifting of copper concentrate sales at the end of the third quarter into early in the fourth quarter as a result of ocean swells at the port in late September. While copper concentrate inventory levels normalized at the end of December 2025, the concentrate contained higher levels of precious metals due to a higher portion of Pampacancha production in the second half of the year, resulting in a shift of some precious metals sales from December 2025 to January 2026.

Manitoba Operations Review

Manitoba Operations Three Months Ended Dec. 31, Sep. 30, Dec. 31, 2025 2025 2024	Year Ended Dec. 31, Dec. 31, 2025 2024
Lalor Ore mined tonnes 353,819 139,006 422,454 Gold g/tonne 5.51 5.42 4.61 Copper % 0.82 0.67 0.95 Zinc % 2.55 1.93 2.95 Silver g/tonne 29.52 31.57 31.91	1,180,121 1,626,935 5.35 4.68 0.79 0.85 2.41 2.84 30.43 27.14
New Britannia Ore milled tonnes 179,808 92,765 185,592 Gold g/tonne 6.68 6.88 5.99 Copper % 1.08 0.76 1.17 Zinc % 1.30 1.00 1.08 Silver g/tonne 31.17 32.18 33.97 Gold recovery1 % 88.6 91.8 90.2 Copper recovery % 88.6 90.0 91.3 Silver recovery1 % 77.1 78.5 79.6	624,631 715,198 6.87 6.29 0.95 1.04 1.09 0.99 31.75 27.78 89.8 89.7 89.2 93.6 79.0 80.9
Stall Concentrator Ore milled tonnes 169,274 43,940 222,004 Gold g/tonne 3.24 3.10 3.36 Copper % 0.69 0.56 0.73 Zinc % 4.32 3.61 4.62 Silver g/tonne 24.97 31.04 29.90 Gold recovery % 71.3 72.6 69.6 Copper recovery % 86.5 83.4 84.4 Zinc recovery % 78.0 34.6 81.7 Silver recovery % 55.6 50.3 55.1	572,704 893,510 3.45 3.42 0.67 0.71 3.90 4.33 28.31 26.54 70.1 68.6 86.7 87.4 79.0 86.2 55.4 56.8
Total contained metal in concentrate and doré2 Gold ounces 47,423 22,441 51,438 Copper tonnes 3,326 842 3,347 Zinc tonnes 5,703 548 8,385 Silver ounces 214,493 102,132 283,223	173,453 214,225 9,249 12,536 17,646 33,339 800,198 995,090
Total payable metal sold Gold ounces 43,226 23,118 50,239 Copper tonnes 2,024 769 3,321 Zinc tonnes 3,972 3,452 5,261 Silver ounces 175,324 112,142 282,158	169,041 212,243 7,651 11,602 15,152 25,120 729,314 956,460
Combined unit operating cost3,4,5 C$/tonne 248 258 233 Gold cash cost4,6 $/oz 705 379 607 Gold sustaining cash cost4 $/oz 1,110 762 908	236 226 549 606 875 868

1 Gold and silver recovery includes total recovery from concentrate and doré.

2 Total metal reported in concentrate is prior to deductions associated with smelter terms and includes other secondary products. Doré includes sludge, slag and carbon fines.

3 Reflects combined mine, mill and G&A costs per tonne of ore milled.

4 Combined unit operating cost, cash cost and sustaining cash cost per ounce of gold produced, net of by-product credits, are non- GAAP financial performance measures with no standardized definition under IFRS. For further information, please see the “Non- GAAP Financial Performance Measures” section of this news release.

5 Excludes overhead costs of $16.0 million or C$163 per tonne during the three months ended September 30, 2025 and $19.2

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