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Mine Plan Abstract

The Copper Mountain mine is positioned 21 kilometres south of the city of Princeton and 304 kilometres east of Vancouver, as proven in Determine 1. The operations embrace a sequence of open pits, an ore processing plant, a waste rock facility, a tailings administration facility and different ancillary amenities that help the operations. Please seek advice from Determine 2 for a website structure map. All claims are managed by Copper Mountain Mine (BC) Ltd., a three way partnership held 75% by Hudbay and 25% by Mitsubishi Supplies Corp.

The mine plan contemplates common annual copper manufacturing of 46,500 tonnes within the first 5 years, 45,000 within the first ten years and 37,000 tonnes over the 21-year mine life. Common money prices and sustaining money prices over the mine life are anticipated to be $1.84 and $2.53 per pound of copper ⁱ , respectively. The up to date mine plan represents an approximate 90% enhance in common annual copper manufacturing and a 50% lower in money prices over the primary 10 years in comparison with 2022.

As proven in Determine 3, Copper Mountain will increase Hudbay’s anticipated consolidated annual copper manufacturing by roughly 50% and maintains the 150,000 tonne per yr degree past 2025.

A abstract of key manufacturing and price particulars will be discovered beneath. For additional particulars, please seek advice from the detailed mine plan desk in Exhibit 1.

Notice: Totals might not add up accurately because of rounding. “LOM” refers to life-of-mine whole.
¹ Sustaining capital contains capitalized stripping.
² Discretionary capitalized stripping pertains to a portion of accelerated stripping actions over 2024-2026 to entry larger grade ore however may very well be decreased or deferred to a later date based mostly on additional geotechnical analysis and different concerns.
³ By-product credit calculated utilizing the next commodity costs and international change assumptions: gold worth of $1,940 per ounce for 2024, $1,900 per ounce for 2025, $1,800 per ounce for 2026, $1,764 per ounce for 2027, $1,725 per ounce for 2028 and $1,700 per ounce long-term; silver worth of $24.00 per ounce for 2024, 2025 and 2026, $23.75 per ounce for 2027, $23.38 per ounce for 2028 and $23.00 per ounce long-term; C$/US$ change price of 1.35 in 2024 and 1.33 in 2025 onwards.
⁴ Sustaining money prices incorporate all prices included in money prices plus sustaining capital expenditures, capitalized stripping, funds on capital leases, royalties and accretion and amortization of decommissioning obligations, and excludes discretionary capitalized stripping. Money prices and sustaining money prices are non-IFRS monetary efficiency measures with no standardized definition underneath IFRS. For additional particulars on why Hudbay believes money prices are a helpful efficiency indicator, please seek advice from the corporate’s most up-to-date Administration’s Dialogue and Evaluation for the interval ended September 30, 2023.

Hudbay’s Stabilization Plans

Since finishing the acquisition of CMMC in June 2023, Hudbay has been centered on advancing its plans to stabilize the Copper Mountain mine over the following few years to enhance reliability and drive sustainable long-term worth. The technical report displays Hudbay’s base case stabilization plan together with many parts as described additional beneath.

Elevated Mining Actions

The corporate has commenced a fleet ramp-up plan which remobilizes idle haul vehicles. The fleet ramp up plan entails a ramp-up from 14 vehicles to 26 vehicles by the top of 2023, with 23 vehicles ramped up to-date. As soon as the fleet ramp up plan is full, Copper Mountain is predicted to have improved flexibility within the mine with extra mining faces.

Accelerated Stripping to Entry Larger Grades

As mirrored within the technical report, the corporate is planning a marketing campaign of accelerated stripping over the following three years to allow entry to larger grade ore and to mitigate the considerably decreased stripping undertaken by Copper Mountain over the 4 years previous to completion of the acquisition (please seek advice from Determine 4). The accelerated stripping program can be anticipated to enhance working efficiencies and decrease unit working prices. A portion of the accelerated capitalized stripping prices is taken into account discretionary and may very well be decreased or deferred to a later date based mostly on additional geotechnical analysis and different concerns.

Improved Mill Throughput and Recoveries

Hudbay’s mine plan for Copper Mountain assumes a mill ramp as much as its nominal capability of 45,000 tonnes per day in 2025. An growth to the permitted capability of fifty,000 tonnes per day is deliberate in 2027. The mine plan assumes roughly $23 million in development capital spending over 2025 and 2026 in reference to the mill growth. The corporate additionally plans to enhance mill recoveries with a extra constant ore feed grade, modifications to the flotation reagents and substitute of key pumps.

Working Efficiencies and Company Synergies

Hudbay’s stabilization plans as mirrored within the technical report are anticipated to generate greater than $20 million in annual working efficiencies over the following three years, in comparison with Copper Mountain’s efficiency in 2022, by enhancements in copper restoration, larger throughput charges and decrease mixed unit working prices. As well as, Hudbay has realized roughly $9 million of the focused $10 million in annual company synergies and is on observe to exceed the goal. A full comparability of Hudbay’s plan versus Copper Mountain’s 2022 efficiency is offered within the following desk.

¹ 2022 actuals as disclosed by CMMC on March 27, 2023. CMMC Monetary Statements and Administration’s Dialogue & Evaluation for the relevant durations can be found underneath CMMC’s SEDAR+ profile at www.sedarplus.ca . 2022 whole unit working prices contains direct mining and milling prices, worker compensation and advantages, transportation prices and company and mine website administration bills.
² Money prices, sustaining money prices and unit working prices are non-IFRS monetary efficiency measures with no standardized definition underneath IFRS. For additional particulars on why Hudbay believes money prices and unit working prices are helpful efficiency indicators, please seek advice from the corporate’s most up-to-date Administration’s Dialogue and Evaluation for the interval ended September 30, 2023.
³ By-product credit calculated utilizing the next commodity costs and international change assumptions: gold worth of $1,940 per ounce for 2024, $1,900 per ounce for 2025, $1,800 per ounce for 2026, $1,764 per ounce for 2027, $1,725 per ounce for 2028 and $1,700 per ounce long-term; silver worth of $24.00 per ounce for 2024, 2025 and 2026, $23.75 per ounce for 2027, $23.38 per ounce for 2028 and $23.00 per ounce long-term; C$/US$ change price of 1.35 in 2024 and 1.33 in 2025 onwards. Sustaining money prices incorporates all prices included in money prices plus sustaining capital expenditures, capitalized stripping, funds on capital leases, royalties and accretion and amortization of decommissioning obligations, and excludes discretionary capitalized stripping.

Mineral Reserve and Useful resource Estimates

The mine plan relies on a revised useful resource mannequin and was constructed utilizing the identical strategies utilized on the Constancia, Copper World and Mason deposits. The mineral reserve estimates whole 367 million tonnes at a copper grade of 0.25% and a gold grade of 0.12 grams per tonne, supporting a 21-year mine life. A further 140 million tonnes of measured and indicated sources at 0.21% copper and 0.10 grams per tonne gold and 370 million tonnes of inferred sources at 0.25% copper and 0.13 grams per tonne gold, unique of mineral reserves, present vital upside potential for reserve conversion and lengthening mine life. Infill drilling is deliberate for 2024 to focus on reserve conversion.

The present mineral reserve and useful resource estimates for Copper Mountain (efficient as of December 1, 2023) are summarized beneath.

Notice: totals might not add up accurately because of rounding.
¹ Mineral useful resource estimates are unique of mineral reserves. Mineral sources will not be mineral reserves as they don’t have demonstrated financial viability.
² Mineral reserve estimates have been calculated utilizing assumed long-term metallic costs of $3.75 per pound copper, $1,650 per ounce gold and $22.00 per ounce silver. Mineral useful resource estimates have been calculated utilizing assumed long-term metallic costs of $4.00 per pound copper, $1,650 per ounce gold and $22.00 per ounce silver.
³ Mineral useful resource estimates tonnes and grades constrained to a Lerch Grossman income issue 1 pit shell.
⁴ Mineral reserves have an efficient date of December 1, 2023, however had been generated excluding the measured and indicated mineral useful resource estimates deliberate to be mined and milled within the month of December 2023. Mineral reserves are reported utilizing an NSR cut-off worth of $5.67 that meet a minimal 0.10% Cu grade.

Per the expectations disclosed within the firm’s information launch on November 7, 2023, the 2023 mineral reserve and mineral useful resource estimates are in keeping with historic estimates revealed by CMMC till 2019, after adjusting for mining depletion and a re-classification of among the indicated mineral sources to the inferred class, in addition to incorporating excessive grade sources added by exploration since 2019. Hudbay’s new 2023 useful resource estimates are intently aligned with manufacturing with each tonnage and grade reconciling positively inside 3% to 4% of the credited mine manufacturing by the mill over the previous three years.

Challenge Optimization and Upside Alternatives

There are a number of alternatives to additional enhance manufacturing, enhance prices and prolong mine life for Copper Mountain. Whereas these alternatives haven’t been thought-about within the technical report as they aren’t but on the degree of required engineering, the corporate is advancing research to guage the potential for these to be mirrored in future mine plans.

• Conversion of Inferred Sources to Reserves – there’s a vital quantity of high-grade mineralization within the inferred class that has the potential to be transformed to reserves, which might enhance manufacturing, enhance head grades over the following 10 years and prolong mine life past 21 years. The corporate has plans for infill drilling in 2024 to focus on reserve conversion.
• Decrease Stripping Prices – the corporate will perform extra geotechnical investigations and pit slope stability exams within the space of Pit 3 to establish alternatives to maximise the usage of double benching and cut back waste stripping that’s at the moment categorised as discretionary.
• Analysis of Mining Applied sciences – Hudbay will pursue expertise trade-offs between trolley help haul vehicles and conveying programs for ore and waste motion in an effort to cut back mining prices, enhance mining productiveness, and cut back greenhouse gasoline emissions.
• Continued Course of Optimization – Hudbay continues to conduct metallurgical testing and simulations to optimize mill throughput and recoveries.
• Renewable Diesel – Hudbay is evaluating the appliance of renewable diesel at Copper Mountain, which has the potential to cut back prices, decrease greenhouse gasoline emissions and be eligible for added federal tax credit underneath Canada’s Clear Gas Rules .
• Inexperienced Alternatives – the corporate plans to put in a mast to gather wind information to have the ability to consider the potential for website renewable power era. This initiative is along with the present net-zero initiatives already underway, together with trolley help haulage and a brand new electrical shovel, which favourably place Copper Mountain within the lowest quartile of the greenhouse gasoline emissions curve for copper mines.

Non-IFRS Monetary Efficiency Measures

Money price and sustaining money price per pound of copper produced are proven as a result of the corporate believes they assist traders and administration assess the efficiency of its operations, together with the margin generated by the operations and the corporate. Unit working prices are proven as a result of these measures are utilized by the corporate as a key efficiency indicator to evaluate the efficiency of its mining and processing operations. These measures should not have a which means prescribed by IFRS and are due to this fact unlikely to be corresponding to related measures offered by different issuers. These measures shouldn’t be thought-about in isolation or as an alternative choice to measures ready in accordance with IFRS and will not be essentially indicative of working revenue or money move from operations as decided underneath IFRS. Different firms might calculate these measures in another way. For additional particulars on these measures, please seek advice from web page 45 of Hudbay’s administration’s dialogue and evaluation for the interval ended September 30, 2023 accessible on SEDAR+ at www.sedarplus.ca and EDGAR at www.sec.gov.

Cautionary Notice Relating to NI 43-101

The scientific and technical info contained on this information launch has been authorized by Olivier Tavchandjian, P. Geo, Hudbay’s Senior Vice-President, Exploration and Technical Providers. Mr. Tavchandjian is a professional particular person pursuant to Canadian Securities Directors’ Nationwide Instrument 43-101 – Requirements of Disclosure for Mineral Initiatives (“NI 43-101”).

A replica of the NI 43-101 technical report will likely be made accessible on Hudbay’s SEDAR+ profile at www.sedarplus.ca and on Hudbay’s EDGAR profile at www.sec.gov . This technical report is the present technical report in respect of the Copper Mountain mine and shall supersede and change all prior technical reviews referring to the Copper Mountain mine.

Cautionary Notice to United States Buyers

This information launch has been ready in accordance with the necessities of the securities legal guidelines in impact in Canada, which differ from the necessities of United States securities legal guidelines. Canadian reporting necessities for disclosure of mineral properties are ruled NI 43-101.

Because of this, info contained on this information launch in respect of the Copper Mountain mine might not be corresponding to related info made public by United States firms topic to the reporting and disclosure necessities underneath the US federal securities legal guidelines and the principles and laws thereunder. For additional info on the variations between the disclosure necessities for mineral properties underneath the US federal securities legal guidelines and NI 43-101, please seek advice from the corporate’s annual info type, a replica of which has been filed underneath Hudbay’s profile on SEDAR+ at www.sedarplus.ca and the corporate’s Kind 40-F, a replica of which has been filed underneath Hudbay’s profile on EDGAR at www.sec.gov.

Cautionary Notice Relating to Ahead-Wanting Data

This information launch accommodates forward-looking info throughout the which means of relevant Canadian and United States securities laws. All info contained on this information launch, apart from statements of present and historic truth, is forward-looking info. Usually, however not all the time, forward-looking info will be recognized by means of phrases resembling “plans”, “expects”, “finances”, “steerage”, “scheduled”, “estimates”, “forecasts”, “technique”, “goal”, “intends”, “goal”, “objective”, “understands”, “anticipates” and “believes” (and variations of those or related phrases) and statements that sure actions, occasions or outcomes “might”, “might”, “would”, “ought to”, “would possibly” “happen” or “be achieved” or “will likely be taken” (and variations of those or related expressions). All the forward-looking info on this information launch is certified by this cautionary notice.

Ahead-looking info contains, however will not be restricted to, manufacturing, working price, capital price and money price estimates, undertaking design, together with processing and tailings amenities, metallic recoveries, mine life and manufacturing charges for the Copper Mountain mine, the potential to additional improve the economics of the undertaking and optimize the design, the influence and results of Hudbay’s optimization and stabilization initiatives, statements relating to allowing issues, the relationships with the First Nations teams, native communities of curiosity, regulatory companies and different key stakeholders, the expectations and plans for New Ingerbelle, the renegotiation of the participation agreements with the Higher Similkameen Indian Band and Decrease Similkameen Indian Band, the prices related to deliberate stripping, and the conceptual mine closure and reclamation plan. Ahead-looking info will not be, and can’t be, a assure of future outcomes or occasions. Ahead-looking info relies on, amongst different issues, opinions, assumptions, estimates and analyses that, whereas thought-about affordable by the corporate on the date the forward-looking info is supplied, inherently are topic to vital dangers, uncertainties, contingencies and different components which will trigger precise outcomes and occasions to be materially totally different from these expressed or implied by the forward-looking info.

The fabric components or assumptions that Hudbay recognized and had been utilized by the corporate in drawing conclusions or making forecasts or projections set out within the forward-looking info embrace, however will not be restricted to:

• the corporate’s means to stabilize and optimize the Copper Mountain mine operations;
• the success of exploration and growth actions on the Copper Mountain mine, together with New Ingerbelle;
• the accuracy of geological, mining and metallurgical estimates;
• anticipated metals costs and the prices of manufacturing;
• the provision and demand for metals Hudbay produces;
• the provision and availability of all types of power and fuels at affordable costs;
• no vital unanticipated operational or technical difficulties;
• the provision of extra financing, if wanted;
• the provision of personnel for the corporate’s exploration, growth and operational tasks and ongoing worker relations;
• sustaining relevant and mandatory permits;
• sustaining good relations with the First Nations teams, native communities of curiosity, regulatory companies and different key stakeholders, together with the neighbouring communities and native governments in British Columbia;
• no vital unanticipated challenges with stakeholders on the Copper Mountain mine;
• no vital unanticipated occasions or modifications referring to regulatory, environmental, well being and security issues;
• no contests over title to Hudbay’s properties, together with on account of rights or claimed rights of Indigenous peoples or challenges to the validity of its unpatented mining claims;
• no offtake commitments in respect of manufacturing from the Copper Mountain mine, apart from these contemplated herein;
• sure tax issues, together with, however not restricted to the mining tax regime in British Columbia; and
• no vital and persevering with adversarial modifications on the whole financial circumstances or circumstances within the monetary markets (together with commodity costs and international change charges).

The dangers, uncertainties, contingencies and different components which will trigger precise outcomes to vary materially from these expressed or implied by the forward-looking info might embrace, however will not be restricted to, dangers typically related to the mining trade and the present geopolitical atmosphere, resembling financial components (together with future commodity costs, foreign money and rate of interest fluctuations, power and consumable costs, provide chain constraints and basic price escalation within the present inflationary atmosphere), dangers associated to product supply and financing, dangers associated to the power for the corporate to efficiently preserve all relevant and mandatory permits, dangers associated to modifications in authorities and authorities coverage, dangers associated to modifications in legislation, dangers in respect of neighborhood relations, together with however not restricted to the relationships with First Nations teams, native communities of curiosity, regulatory companies and different key stakeholders, dangers associated to contracts that had been entered into in respect of the Copper Mountain mine, together with however not restricted to the renegotiation of the participation agreements with the Higher Similkameen Indian Band and Decrease Similkameen Indian Band, dangers associated to the conceptual mine closure and reclamation plan, uncertainties associated to the geology, continuity, grade and estimates of mineral reserves and sources, and the potential for variations in grade and restoration charges, in addition to the dangers mentioned underneath the heading “Threat Components” within the firm’s most up-to-date annual info type and underneath the heading “Monetary Threat Administration” within the firm’s most up-to-date administration’s dialogue and evaluation.

Ought to a number of danger, uncertainty, contingency or different issue materialize or ought to any issue or assumption show incorrect, precise outcomes might fluctuate materially from these expressed or implied within the forward-looking info. Accordingly, you shouldn’t place undue reliance on forward-looking info. The corporate doesn’t assume any obligation to replace or revise any forward-looking info after the date of this information launch or to elucidate any materials distinction between subsequent precise occasions and any forward-looking info, besides as required by relevant legislation.

About Hudbay

Hudbay (TSX, NYSE: HBM) is a copper-focused mining firm with three long-life operations and a world-class pipeline of copper development tasks in tier-one mining-friendly jurisdictions of Canada, Peru and the US.

Hudbay’s working portfolio contains the Constancia mine in Cusco (Peru), the Snow Lake operations in Manitoba (Canada) and the Copper Mountain mine in British Columbia (Canada). Copper is the first metallic produced by the corporate, which is complemented by significant gold manufacturing. Hudbay’s development pipeline contains the Copper World undertaking in Arizona, the Mason undertaking in Nevada (United States), the Llaguen undertaking in La Libertad (Peru) and several other growth and exploration alternatives close to its present operations.

The worth Hudbay creates and the influence it has is embodied in its function assertion: “We care about our individuals, our communities and our planet. Hudbay supplies the metals the world wants. We work sustainably, rework lives and create higher futures for communities.” Hudbay’s mission is to create sustainable worth and robust returns by leveraging its core strengths in neighborhood relations, centered exploration, mine growth and environment friendly operations.

For additional info, please contact:

Candace Brûlé
Vice President, Investor Relations
(416) 814-4387
investor.relations@hudbay.com

______________________________

ⁱ Money prices and sustaining money prices are non-IFRS monetary efficiency measures with no standardized definition underneath IFRS. For additional particulars on why Hudbay believes money prices are a helpful efficiency indicator, please seek advice from the corporate’s most up-to-date Administration’s Dialogue and Evaluation for the interval ended September 30, 2023.
^{i i} Based mostly on copper manufacturing from most up-to-date technical reviews for Hudbay’s Constancia, Snow Lake and Copper Mountain operations.

Exhibit 1: Detailed Mine Plan Data

Notice: LOM refers to life-of-mine whole.
¹ Sustaining capital contains capitalized lease funds.
² Discretionary capitalized stripping pertains to a portion of accelerated stripping actions over 2024-2026 to entry larger grade ore however may very well be decreased or deferred to a later date based mostly on additional geotechnical analysis and different concerns.
³ Money prices, sustaining money prices and unit working prices are non-IFRS monetary efficiency measures with no standardized definition underneath IFRS. For additional particulars on why Hudbay believes money prices and unit working prices are helpful efficiency indicators, please seek advice from the corporate’s most up-to-date Administration’s Dialogue and Evaluation for the interval ended September 30, 2023.
⁴ Mining price earlier than the influence of capitalized stripping.
⁵ By-product credit calculated utilizing the next commodity costs and international change assumptions: gold worth of $1,940 per ounce for 2024, $1,900 per ounce for 2025, $1,800 per ounce for 2026, $1,764 per ounce for 2027, $1,725 per ounce for 2028 and $1,700 per ounce long-term; silver worth of $24.00 per ounce for 2024, 2025 and 2026, $23.75 per ounce for 2027, $23.38 per ounce for 2028 and $23.00 per ounce long-term; C$/US$ change price of 1.35 in 2024 and 1.33 in 2025 onwards. Sustaining money prices incorporates all prices included in money price plus sustaining capital expenditures, capitalized stripping, funds on capital leases, royalties and accretion and amortization of decommissioning obligations.

Determine 1: Copper Mountain Mine Location
The Copper Mountain mine is positioned in British Columbia, Canada, 21 kilometres by highway south of the city of Princeton and 304 kilometres by highway east of Vancouver.

Obtainable at https://www.globenewswire.com/NewsRoom/AttachmentNg/e822c7fb-00aa-4c30-8c98-8b3f68b55a39

Determine 2: Copper Mountain Website Format
The operations include the Copper Mountain pit, the New Ingerbelle pit, an ore processing plant, a waste rock facility, a tailings administration facility and different related website infrastructure that help the operations.

Obtainable at https://www.globenewswire.com/NewsRoom/AttachmentNg/671dfc0b-4a83-49bf-82e5-6ad4bd77bf22

Determine 3: Hudbay Consolidated Manufacturing Profile Graph
Copper Mountain is a significant contributor to Hudbay’s consolidated copper manufacturing profile. The influence is critical after 2025 with will increase of as much as 50% in annual copper manufacturing to keep up the 150,000 tonnes per yr degree.

Obtainable at https://www.globenewswire.com/NewsRoom/AttachmentNg/b13833be-78f8-4be5-aee6-87ada5b461d2

Supply: Based mostly on Hudbay beforehand issued copper manufacturing steerage for 2023 to 2025. Copper manufacturing within the years 2026 to 2028 is sourced from Hudbay’s Constancia NI 43-101 technical report dated March 2021, Snow Lake NI 43-101 technical report dated March 2021 and Copper Mountain NI 43-101 technical report dated December 4, 2023. Manufacturing profile excludes potential future manufacturing from the Copper World undertaking.

Determine 4: Copper Mountain Mine Efficiency
Hudbay’s mine plan incorporates accelerated stripping actions to assist mitigate the impacts of considerably decreased stripping undertaken by Copper Mountain over the previous 4 years. The accelerated stripping is predicted to allow entry to larger grade ore and enhance the effectivity of the mine. Hudbay expects sustained enhancements in mill throughput to realize the design capability of 45,000 tonnes per day and an growth to the permitted restrict of fifty,000 tonnes per day in 2027.

Obtainable at https://www.globenewswire.com/NewsRoom/AttachmentNg/38cbcc94-60a9-4c7e-ba43-b61e0bc46986

Supply: CMMC historic annual disclosure for the years 2018 to 2022 and Hudbay’s Copper Mountain NI 43-101 technical report dated December 4, 2023 for the years 2024 to 2028.