HBM · Hudbay Minerals Inc.

TORONTO, Aug. 28, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) ( TSX, NYSE: HBM) today announced that the Company has filed an early warning report in respect of its holdings in Panoro Minerals Ltd. (“ Panoro ”) due to an increase in the number of issued and outstanding common shares in the capital of Panoro (“ Common Shares ”). Hudbay has not sold or disposed of any Common Shares. As disclosed in Panoro’s management’s discussion and analysis for the three and six months ended June 30, 2026, there were 309,215,351 Common Shares that were issued and outstanding as of August 24, 2026. This total represented an increase compared to the 308,010,821 Common Shares that were issued and outstanding as of May 27, 2026, as disclosed in Panoro’s management’s discussion and analysis for the three months ended March 31, 2026. Hudbay currently holds 30,823,849 Common Shares. Due to the increase in the issued and outstanding Common Shares described above, Hudbay’s Common

TORONTO, Aug. 10, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) (TSX, NYSE: HBM) is pleased to announce the appointment of Thomas Schulz to the Company’s Board of Directors (the “Board”). “We are delighted that Thomas will join Hudbay’s Board. Thomas’ extensive leadership experience across the globe and significant knowledge of the mining industry make him an excellent addition to our Board. I am confident his strategic insights will be invaluable as the Board oversees Hudbay’s continued growth through the execution of our strong pipeline of brownfield and greenfield projects,” said David Smith, Hudbay’s Chair of the Board. Mr. Schulz is currently the Chief Executive Officer of Bilfinger SE, a German-based industrial service provider with a global footprint in the process industry. His executive leadership experience spans over 25 years and includes nine years as the Group CEO of FLSmidth, a leading provider of services and solutions to the mining industry,

TORONTO, July 31, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) (TSX, NYSE: HBM) announced today a correction to the record date and payment date for its upcoming quarterly cash dividend to be paid in September 2026. Hudbay’s news release dated July 29, 2026 included a typographical error and the record and payment dates contained therein should be disregarded. The corrected dates are set out below in the paragraph titled “Dividend Declared”: Dividend Declared A quarterly dividend of C$0.01 per share was declared on July 28, 2026. The dividend will be paid out on September 25, 2026 to shareholders of record as of close of business on September 8, 2026. Other than the corrections to the record date and payment date, all other terms of the quarterly cash dividend to be paid in September 2026 remain unchanged. Forward-Looking Information This news release contains forward-looking information within the meaning of applicable Canadian and United

TORONTO, July 29, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) (TSX, NYSE: HBM) released its second quarter 2026 financial results today. All amounts are in U.S. dollars, unless otherwise noted. “Hudbay delivered another quarter of steady operating performance and industry-leading margins, with record trailing twelve month adjusted EBITDA of $1.3 billion, driven by our unique copper and gold diversification and focus on cost control,” said Peter Kukielski, Chief Executive Officer. “Our diversified operations in Canada and Peru continued to achieve operating efficiencies and deliver strong gold by-product credits, which have more than offset external cost pressures and allowed us to improve our 2026 full-year consolidated cash cost guidance. We generated over $100 million in free cash flow during the quarter and more than $200 million in free cash flow through the first half of the year, allowing us to prudently reinvest in high-return growth opportunities

TORONTO, July 08, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) ( TSX, NYSE: HBM) senior management will host a conference call on Wednesday, July 29, 2026 at 11:00 a.m. ET to discuss the Company’s second quarter 2026 results. Second Quarter 2026 Results Conference Call and Webcast Date: Wednesday, July 29, 2026 Time: 11:00 a.m. ET Webcast: www.hudbay.com Dial in: 1-833-752-3516 or 647-846-8185 Hudbay plans to issue a news release containing the second quarter of 2026 results before the market open on Wednesday, July 29, 2026 and post it on the Company’s website. An archived audio webcast will be available on Hudbay’s website following the call. About Hudbay Hudbay (TSX, NYSE: HBM) is a copper-focused critical minerals mining company with three long-life operations and a world-class pipeline of copper growth projects in tier-one mining jurisdictions of Canada, Peru and the United States. Hudbay’s operating portfolio includes the Constancia mine in Cusco

TORONTO, July 02, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) (TSX, NYSE: HBM) announced it has received approval from the National Environmental Certification Service for Sustainable Investments in Perú (“SENACE”) to amend its environmental permit and further increase annual mill processing capacity at Constancia. The approval was received in late June and represented the fifth environmental permit amendment at Constancia. The amended permit increases the processing capacity of the Constancia mill to 34 million tonnes of ore per annum from the previously permitted 31 million tonnes per annum. In March 2026, Hudbay received permit approval to increase mill throughput capacity to 31 million tonnes from 29.9 million tonnes per annum. As part of the Company’s continuous improvement efforts, the updated permit enables additional capacity to further optimize Constancia’s operations and deliver strong copper production. Hudbay’s efforts to increase mill

TORONTO, June 24, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) (TSX, NYSE: HBM) today announced that it has completed the previously announced offering of US$52 million in aggregate principal amount of 4.50% Arizona Industrial Development Authority Solid Waste Disposal Revenue Bonds (Copper World LLC Project), Series 2026A (the “Copper World Bonds”). The Copper World Bonds are issued by the Arizona Industrial Development Authority (the “Issuer”) and have an initial mandatory tender date of July 2, 2036. Copper World LLC (“Copper World”) intends to use the gross proceeds of US$52 million of the Copper World Bonds loaned from the Issuer to finance, reimburse and refinance, as applicable, certain eligible expenditures at the Copper World project in Pima County, Arizona, and to finance capitalized interest, if any, and certain other eligible costs associated with the Copper World Bonds. Pursuant to the terms of the loan agreement (the “Loan Agreement”), Copper

TORONTO, June 24, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) (TSX, NYSE: HBM) is pleased to announce the closing of its previously announced acquisition of Arizona Sonoran Copper Company Inc. (“Arizona Sonoran”) by way of a court-approved plan of arrangement, pursuant to which Hudbay has acquired all of the issued and outstanding common shares of Arizona Sonoran, not already owned by Hudbay, effective as of today’s date (the “Transaction”). Arizona Sonoran is now a wholly-owned subsidiary of Hudbay and, in accordance with the terms of the Transaction, former Arizona Sonoran shareholders (other than Hudbay) received 0.242 of a Hudbay common share for each Arizona Sonoran common share (each, an “ASCU Share”) held immediately prior to the effective time of the Transaction or, in the case of former holders of options, restricted share units and deferred share units of Arizona Sonoran, for each ASCU Share held immediately following the effective time of the

TORONTO, June 18, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) (TSX, NYSE: HBM) recently celebrated the official groundbreaking of the New Ingerbelle expansion project at its Copper Mountain mine, marking a significant milestone for the operation and its long-term future in British Columbia. The event was attended by Hudbay’s executive team, employees, B.C.'s Minister of Mining and Critical Minerals, the B.C. Mining Association, the Chief of the Upper Similkameen Indian Band, regional representatives, and leaders from the local community. The event was also recognized by Canada’s Minister of Energy and Natural Resources. “New Ingerbelle is not just an expansion, it is a critical pillar of Hudbay’s long-term growth strategy in British Columbia,” said Peter Kukielski, President and Chief Executive Officer of Hudbay. “The opening of New Ingerbelle enhances the copper and gold production profile at Copper Mountain, secures more than 800 full-time

TORONTO, June 17, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) (TSX, NYSE: HBM) today announced the pricing of an offering of US$52 million in aggregate principal amount of 4.50% Arizona Industrial Development Authority Solid Waste Disposal Revenue Bonds (Copper World LLC Project) Series 2026A (the “Copper World Bonds”). The Copper World Bonds will be issued by the Arizona Industrial Development Authority (the “Issuer”) and will have an initial mandatory tender date of July 2, 2036. The Issuer will lend the gross proceeds of US$52 million to Copper World LLC (“Copper World”) to finance, reimburse and refinance, as applicable, certain eligible expenditures at the Copper World project in Pima County, Arizona, and to finance capitalized interest, if any, and certain other eligible costs associated with the Copper World Bonds. Pursuant to the terms of the loan agreement (the “Loan Agreement”), Copper World will be required to make payments at such times and in

TORONTO, May 28, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) (TSX, NYSE: HBM) announced today that the Toronto Stock Exchange (the “TSX”) has approved its notice of intention to commence a normal course issuer bid (“NCIB”) for its common shares (“Shares”). The NCIB will be made in accordance with the requirements of the Toronto Stock Exchange and applicable securities laws. Pursuant to the NCIB, Hudbay is authorized to acquire up to a maximum of 19,863,997 Shares, representing 5% of its issued and outstanding Shares as of May 21, 2026, for cancellation over a 12-month period. The actual number of Shares which may be purchased by Hudbay pursuant to the NCIB and the timing of such purchases will be determined by management of the Company and remains subject to a number of factors, including market conditions, share price, available cash resources and other opportunities to invest capital for growth. There cannot be any assurance as to how many Shares, if

TORONTO, May 19, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) ( TSX, NYSE: HBM) today announced that each of the nine individuals nominated for election as a director of Hudbay at the Company’s Annual and Special Meeting of Shareholders held on May 19, 2026 (the “ 2026 AGM ”) was elected. The detailed director voting results are set out below: Director Number of Votes FOR Number of Votes AGAINST Percentage of Votes FOR John E.F. Armstrong 257,475,288 422,630 99.84% Jeane L. Hull 256,363,233 1,534,683 99.41% Carin S. Knickel 255,481,923 2,415,993 99.06% Peter Kukielski 250,031,317 7,866,601 96.95% George E. Lafond 242,482,558 15,415,359 94.02% Colin Osborne 255,407,682 2,490,236 99.03% Paula C. Rogers 254,921,750 2,976,166 98.85% David S. Smith 256,784,775 1,113,143 99.57% Laura Tyler 257,443,412 454,504 99.82% For more information regarding the 2026 AGM voting results, please refer to Hudbay’s “Report of Voting Results”, which is available on the

TORONTO, May 19, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) (TSX, NYSE: HBM) today announced the release of its 2025 annual report (“Annual Report”), which provides updates on key business, financial and sustainability initiatives and accomplishments from last year. The sustainability disclosure in the Annual Report is aligned with recognized global reporting standards. “In 2025, across the Company, every business unit and division played a part in helping Hudbay strengthen its foundation for enduring success across every aspect of our operations,” says Peter Kukielski, Hudbay’s President and Chief Executive Officer. “Our theme this year is not a boast about things we’ve done. Rather, it is a commitment to a goal we are pursuing relentlessly across Hudbay, in everything we do – in performance, in sustainability, as an employer and as a neighbour – to set the Gold Standard in Copper. Our achievements in 2025 exemplified this commitment.” Hudbay’s purpose

TORONTO, May 01, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) (TSX, NYSE: HBM) released its first quarter 2026 financial results today. All amounts are in U.S. dollars, unless otherwise noted. “Hudbay delivered another quarter of record revenue, record adjusted EBITDA and record adjusted earnings, driven by steady operating performance, expanded margins from strong copper and gold exposure and a focus on cost control across the business,” said Peter Kukielski, President and Chief Executive Officer. “Our leading operating cost performance resulted in record low consolidated cash costs and contributed to continued strong free cash flow generation in the quarter. All our operations are on track to achieve 2026 production and cost guidance. Building on our commitment to prudent balance sheet management, we ended the quarter with over $1 billion in cash and cash equivalents. Our enhanced financial flexibility positions us well to advance the development of

TORONTO, April 08, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) ( TSX, NYSE: HBM) senior management will host a conference call on Friday, May 1, 2026 at 11:00 a.m. ET to discuss the Company’s first quarter 2026 results. First Quarter 2026 Results Conference Call and Webcast Date: Friday, May 1, 2026 Time: 11:00 a.m. ET Webcast: www.hudbay.com Dial in: 1-833-752-3516 or 647-846-8185 Hudbay plans to issue a news release containing the first quarter of 2026 results before the market open on Friday, May 1, 2026 and post it on the Company’s website. An archived audio webcast will be available on Hudbay’s website following the call. About Hudbay Hudbay (TSX, NYSE: HBM) is a copper-focused critical minerals mining company with three long-life operations and a world-class pipeline of copper growth projects in tier-one mining jurisdictions of Canada, Peru and the United States. Hudbay’s operating portfolio includes the Constancia mine in Cusco

TORONTO, April 02, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) ( TSX, NYSE: HBM) today announced that it has repaid in full all of its outstanding 4.50% senior unsecured notes due 2026 (the “2026 Notes”), which were originally issued in an aggregate principal amount of $600 million. All amounts are in U.S. dollars, unless otherwise noted. Hudbay repaid the outstanding aggregate principal amount of $472.5 million of 2026 Notes on maturity on April 1, 2026 using a combination of available cash on hand and a $272 million draw on its low-cost revolving credit facilities. The repayment of the 2026 Notes using available liquidity is consistent with Hudbay’s prudent balance sheet management and focus on cost of capital and provides the Company with improved financial flexibility in advance of a Copper World sanctioning decision later this year. About Hudbay Hudbay (TSX, NYSE: HBM) is a copper-focused critical minerals mining company with three long-life

TORONTO, March 27, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) (TSX, NYSE: HBM) today released its annual mineral reserve and resource update and issued new three-year production guidance. All amounts are in U.S. dollars, unless otherwise noted. Affirmed 2026 production guidance and issued new 2027 and 2028 production guidance, demonstrating increased copper and strong gold production from Hudbay’s stable operating platform with three long-life operations in tier-one mining jurisdictions in the Americas. Consolidated copper production is expected to average 147,000 i tonnes per year over the next three years, an increase of 24% from 2025 production. Consolidated copper production is expected to average 159,000 i tonnes per year in 2027 and 2028, representing a 28% increase from expected 2026 production. This reflects the benefits from the expected completion of the optimization efforts at Copper Mountain and mill throughput improvement projects at

Establishes a major copper hub in southern Arizona with the addition of the Cactus project to Hudbay’s existing Arizona business, including the Copper World project Strategically positions Hudbay to become a leading supplier of domestic U.S. refined copper with Copper World and Cactus both expected to be significant producers of copper cathode Provides a clear pathway to scale Hudbay’s annual copper production from ~125,000 tonnes today to more than 250,000 tonnes by 2030 with Copper World and other near term optimization projects, and potential to grow to more than 350,000 tonnes with Cactus Significant operational efficiencies and regional synergies are expected with the staged development of Copper World and Cactus Accretive to Hudbay's shareholders on a net asset value per share basis and on a reserves and resources per share basis with the addition of a high-quality asset in a core jurisdiction, positioning Hudbay’s next phase

TORONTO, Feb. 20, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) (TSX, NYSE: HBM) is pleased to announce that it has received key permit amendments for the New Ingerbelle expansion project at its Copper Mountain mine located in British Columbia, Canada. The Company received the amended Mines Act and Environmental Management Act permits through the coordinated authorizations process managed by the British Columbia Major Mines Office (“MMO”). This milestone enhances the copper and gold production profile at Copper Mountain, secures a longer mine life, protects more than 800 jobs and ensures continued economic benefits at the local, regional and federal levels. “The New Ingerbelle permit ensures that we’ll be able to advance this major project while extending our partnership with local communities to facilitate additional growth investments at Copper Mountain and further adds to our 99 years of successful operations in Canada,” said Peter Kukielski, President

TORONTO, Feb. 20, 2026 (GLOBE NEWSWIRE) - 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

Water is a lifeline in the arid landscapes of Arizona’s Upper Santa Cruz Basin. Arizona’s Central Arizona Project (CAP) was designed to transport water from the Colorado River to the central and southern parts of the state, addressing regional water shortages. The pipeline stops just south of Tucson, leaving the last 60 miles of the state – between Tucson and the southern border – without direct access to CAP water. Recognizing the long-term need to address declining aquifer levels, Hudbay is working with the Community Water Company of Green Valley (CWC) in a joint venture to implement Project Renews, which will extend the CAP water pipeline and replenish local water resources. Hudbay has committed to fully funding Project Renews, an extension of the pipeline to a recharge facility, where water can be used to replenish the aquifer. This will be accomplished by constructing a 36-inch diameter pipeline, delivering water from the Colorado River to the Green Valley and Sahuarita

The mining sector faces significant gender equity challenges. In Peru, despite a 30% increase in mining employment over the last decade, women’s participation has risen by only 1%. As a result, women make up just 6% of the industry’s total workforce and earn an average of 4,000 PEN (Peruvian sol) less annually than their male counterparts1. Beyond representation, women also face systemic challenges, including workplace harassment, sexual harassment and difficulties returning to work after maternity leave. To address these barriers, Hudbay Peru launched the Unidas (or “United”) program in 2024 – a platform created by women for women to foster inclusion, support and empowerment within the Company. This initiative provides a safe space for participants to share experiences, build solidarity and collectively reflect on their challenges. With the program’s core focus on sisterhood, parity and empathy, participants engage in structured group sessions of 5 to 15, guided by a trained

The Province of British Columbia has been advancing its vision for a low-carbon future since 2010. To achieve a 30% reduction in carbon intensity by 2030, the province passed the Low Carbon Fuels Act in 2022, which took effect on January 1, 2024. The Act together with its regulations is known as British Columbia’s Low Carbon Fuel Standard (LCFS). Evaluations at Copper Mountain mine in BC showed that emissions from diesel fuel usage at the mine’s operations have consistently accounted for more than 90% of Scope 1 emissions. These emissions are attributable to the non-electrified pieces of our mining fleet – a fleet that includes a combination of electric and diesel-powered haul trucks, shovels and drills, as well as several dozers, loaders and excavators. Using low-emissions fuels, such as Hydrogenation-Derived Renewable Diesel (HDRD), most commonly known as renewable diesel, has shown evidence of greatly reducing greenhouse gas emissions, contributing to the province’s carbon goals.

TORONTO, Jan. 22, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “company”) ( TSX, NYSE: HBM) is pleased to announce the signing of an amended and restated option agreement (the “Agreement”) with Japan Organization for Metals and Energy Security (“JOGMEC”) and Marubeni Corporation (“Marubeni”), pursuant to which Hudbay has granted JOGMEC an option (the “JOGMEC Option”) to acquire a 10% interest in three projects located within trucking distance of Hudbay’s processing facilities in Flin Flon, Manitoba, as shown in Figure 1 and further described below. In order to exercise the JOGMEC Option, amongst other things, JOGMEC will be required to fund at least C$6 million in exploration expenditures over a period of approximately three years, with Hudbay acting as the operator carrying out the exploration activities. This Agreement is an amendment and restatement of the option agreement Hudbay entered into with Marubeni in March 2024, pursuant to which Marubeni’s wholly-owned

TORONTO, Jan. 16, 2026 (GLOBE NEWSWIRE) - Hudbay Minerals Inc. (“Hudbay” or the “Company”) ( TSX, NYSE: HBM) today announced preliminary production results for the three months and year ended December 31, 2025. All amounts are in US dollars, unless otherwise noted. Highlights: Achieved 2025 consolidated copper and gold production guidance, despite the mandatory wildfire evacuation shutdowns and temporary operational interruptions 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 5 th consecutive year achieving its annual consolidated gold production guidance, since establishing standalone gold production guidance i . Strong operational performance in the fourth quarter with approximately 33,069 tonnes of copper produced and 84,298 ounces of gold produced, resulting in full year 2025 consolidated production of