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TSX, NYSE – HBM 2018 No. 11 Hudbay Hosts Analyst Site Visit to Constancia Mine in Peru and Announces Second Quarter 2018 Production Results for Peru Operations

Production Results

TSX, NYSE – HBM

2018 No. 11

Hudbay Hosts Analyst Site Visit to Constancia Mine in Peru and Announces

Second Quarter 2018 Production Results for Peru Operations

Toronto, Ontario, July 17, 2018 – Hudbay Minerals Inc. (“Hudbay” or the “company”) (TSX, NYSE: HBM)

announced today that it is hosting a site visit by analysts and investors to its Constancia mine in Peru on July 17 -18,

2018. A copy of the site visit presentation, which contains operational an d other updates, is available on Hudbay’s

website at www.hudbay.com.

Hudbay also today released its second quarter 2018 production results for its Peru operations. All amounts are in US

dollars, unless otherwise noted:

Three months ended Six months ended

Peru Production Performance Jun. 30, Jun. 30, Jun. 30, Jun. 30,

2018 2017 2018 2017

Ore mined1 tonnes 8,744,200 7,337,531 18,233,969

14,550,731

Copper % 0.47 0.55 0.49 0.55

Gold g/tonne 0.05 0.04 0.05 0.04

Silver g/tonne 4.03 3.81 4.11 3.92

Ore milled tonnes 7,726,606 6,931,690 15,577,775

13,249,299

Copper % 0.44 0.53 0.47 0.54

Gold g/tonne 0.05 0.04 0.05 0.04

Silver g/tonne 3.92 3.91 4.01 4.08

Copper concentrate tonnes 113,739 118,586 242,286 227,122

Concentrate grade % Cu 23.58 25.13 24.09 25.10

Copper recovery % 79.7 80.6 80.3 80.4

Gold recovery % 44.8 44.8 44.9 44.7

Silver recovery % 61.2 62.6 61.9 62.4

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Reported tonnes and grade for ore mined are estimates based on mine plan assumptions and may not reconcile fully to ore mille d.

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2018 No. 11

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Three months ended Six months ended Guidance

Contained metal in Jun. 30, Jun. 30, Jun. 30, Jun. 30, Annual

concentrate produced 2018 2017 2018 2017 2018

Copper tonnes 26,817 29,798 58,369 57,009 95,000 - 115,000

Gold oz 5,190 3,802 10,608 7,737

Silver oz 596,571 546,295 1,242,456 1,085,830

Precious metals1 oz 13,713 11,606 28,357 23,249 50,000 - 70,0002

1

Precious metals production includes gold and silver production on a gold-equivalent basis. Silver is converted to gold at a ratio of 70:1.

2

Initial 2018 guidance for Constancia precious metals production was 65,000 to 85,000 ounces.

Peru Production Review

During the second quarter of 2018, the Peru operations produced 26,817 tonnes of copper, which was approximately

10% lower than production in the second quarter of 2017 as a result of lower copper head grade in accordance with

the mine plan, offset in part by higher mill throughput.

Recoveries of copper and silver were slightly lower in the second quarter of 2018, compared to the same period in

2017, while gold recoveries remain unchanged over the same period . Several metallurgical initiatives are being

implemented by Hudbay with the intention of increasing copper recoveries as anticipated in the recently filed 2018

Technical Report for Constancia.

Forward-Looking Information

This news release contains forward-looking information within the meaning of applicable Canadian and United States

securities legislation. All information contained in this news release, other than statements of current and historical

fact, is forward-looking information. Often, but not always, forward -looking information can be identified by the use of

words such as “plans”, “expects”, “budget”, “guidance”, “scheduled”, “estimates”, “forecasts”, “st rategy”, “target”,

“intends”, “objective”, “goal”, “understands”, “anticipates” and “believes” (and variations of these or similar words) and

statements that certain actions, events or results “may”, “could”, “would”, “should”, “might” “occur” or “be achie ved” or

“will be taken” (and variations of these or similar expressions). All of the forward -looking information in this news

release is qualified by this cautionary note.

Forward-looking information includes, but is not limited to, production guidance for Constancia and the planned

metallurgical initiatives that are being implemented at Constancia with the intention of increasing copper recoveries.

Forward-looking information is not, and cannot be, a guarantee of future results or events. Forward -looking

information is based on, among other things, opinions, assumptions, estimates and analyses that, while considered

reasonable by the company at the date the forward -looking information is provided, inherently are subject to

significant risks, uncertainti es, contingencies and other factors that may cause actual results and events to be

materially different from those expressed or implied by the forward-looking information.

The material factors or assumptions that Hudbay identified and were applied by the company in drawing conclusions

or making forecasts or projections set out in the forward-looking information include, but are not limited to:

 the success of mining, processing, exploration and development activities;

 the scheduled maintenance and availability of the processing facilities;

 the accuracy of geological, mining and metallurgical estimates;

 anticipated metals prices and the costs of production;

 the supply and demand for metals the company produces;

 the supply and availability of all forms of energy and fuels at reasonable prices;

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2018 No. 11

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 no significant unanticipated operational or technical difficulties;

 the execution of Hudbay’s business and growth strategies, including the success of its strategic investments

and initiatives;

 the availability of additional financing, if needed;

 the ability to complete project targets on time and on budget and other events that may affect the company’s

ability to develop its projects;

 the timing and receipt of various regulatory, governmental and joint venture partner approvals;

 the availability of personnel for the exploration, development and operational projects and ongoing employee

relations;

 the ability to secure required land rights to develop the Pampacancha deposit;

 maintaining good relations with the communities in which the company operates, including the communities

surrounding the Constancia mine;

 no significant unanticipated challenges with stakeholders at the company’s various projects;

 no significant unanticipated event s or changes relating to regulatory, environmental, health and safety

matters;

 no contests over title to the company’s properties, including as a result of rights or claimed rights of

aboriginal peoples;

 the timing and possible outcome of pending litigation and no significant unanticipated litigation;

 certain tax matters, including, but not limited to current tax laws and regulations and the refund of certain

value added taxes from the Canadian and Peruvian governments; and

 no significant and continuing adv erse changes in general economic conditions or conditions in the financial

markets (including commodity prices and foreign exchange rates).

The risks, uncertainties, contingencies and other factors that may cause actual results to differ materially from t hose

expressed or implied by the forward-looking information may include, but are not limited to, risks generally associated

with the mining industry, such as economic factors (including future commodity prices, currency fluctuations, energy

prices and gen eral cost escalation), uncertainties related to the development and operation of the company’s

projects, dependence on key personnel and employee and union relations, risks related to the schedule for mining

the Pampacancha deposit (including the timing and cost of acquiring the required surface rights and the impact of any

schedule delays), risks related to political or social unrest or change, risks in respect of aboriginal and community

relations, rights and title claims, operational risks and hazards, i ncluding unanticipated environmental, industrial and

geological events and developments and the inability to insure against all risks, failure of plant, equipment,

processes, transportation and other infrastructure to operate as anticipated, compliance wit h government and

environmental regulations, including permitting requirements and anti -bribery legislation, depletion of the company’s

reserves, volatile financial markets that may affect the company’s ability to obtain additional financing on acceptable

terms, the failure to obtain required approvals or clearances from government authorities on a timely basis,

uncertainties related to the geology, continuity, grade and estimates of mineral reserves and resources, and the

potential for variations in grade a nd recovery rates, uncertain costs of reclamation activities, the company’s ability to

comply with its pension and other post -retirement obligations, the company’s ability to abide by the covenants in its

debt instruments and other material contracts, tax refunds, hedging transactions, as well as the risks discussed under

the heading “Risk Factors” in Hudbay’s most recent Annual Information Form.

Should one or more risk, uncertainty, contingency or other factor materialize or should any factor or assumption prove

incorrect, actual results could vary materially from those expressed or implied in the forward -looking information.

Accordingly, you shou ld not place undue reliance on forward -looking information. Hudbay does not assume any

obligation to update or revise any forward -looking information after the date of this news release or to explain any

material difference between subsequent actual events and any forward -looking information, except as required by

applicable law.

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2018 No. 11

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Note to United States Investors

This news release has been prepared in accordance with the requirements of the securities laws in effect in Canada,

which may differ materially from the requirements of United States securities laws applicable to U.S. issuers.

About Hudbay

Hudbay (TSX, NYSE: HBM) is an integrated mining company producing copper concentrate (containing copper, gold

and silver) and zinc metal. With assets in North and South America, the company is focused on the discovery,

production and marketing of base and precio us metals. Through its subsidiaries, Hudbay owns four polymetallic

mines, four ore concentrators and a zinc production facility in northern Manitoba and Saskatchewan (Canada) and

Cusco (Peru), and a copper project in Arizona (United States). The company is governed by the Canada Business

Corporations Act and its shares are listed under the symbol "HBM" on the Toronto Stock Exchange, New York Stock

Exchange and Bolsa de Valores de Lima. Hudbay also has warrants listed under the symbol “HBM.WT” on the

Toronto Stock Exchange and “HBM/WS” on the New York Stock Exchange. Further information about Hudbay can be

found on www.hudbay.com.

For further information, please contact:

Carla Nawrocki

Director, Investor Relations

(416) 362-7362

[email protected]