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TSX, NYSE – HBM 2019 No. 8 Hudbay Reaches Agreement To Purchase Rosemont’s Minority Joint Venture Interest

Mergers & Acquisitions Partnerships & JV

TSX, NYSE – HBM

2019 No. 8

Hudbay Reaches Agreement To Purchase Rosemont’s Minority Joint Venture

Interest

Toronto, Ontario, March 13, 2019 – Hudbay Minerals Inc. (“Hudbay” or the “company”) ( TSX, NYSE: HBM)

announced today that it has reached an agreement with United Copper & Moly LLC (“UCM”) to purchase UCM’s

7.95% interest in the Rosemont project, and to terminate all of UCM’s remaining earn -in and off -take rights, for

upfront cash consideration of US$45 million, plus thre e annual installments of US$10 million per year, commencing

July 1, 2022. In connection with the transaction, Hudbay has agreed to release UCM from any and all obligations in

relation to the Rosemont project, including project loans representing its propor tionate share of joint venture

expenditures incurred beyond its initial earn -in investment. UCM is jointly owned by Korea Resources Corporation

and LG International Corp.

“This transaction simplifies the ownership structure and improves our financial flex ibility for the development of

Rosemont,” said Alan Hair, Hudbay’s president and chief executive officer. “There is continued positive momentum at

Rosemont as we recently received our section 404 water permit and we look forward to advancing the project into

construction as we finalize a prudent financing strategy . As part of our financing strategy, we will shortly launch a

process to seek a development joint venture partner for Rosemont. We expect there will be subst antial interest in a

minority stake given recent precedent transactions and Rosemont’s unique status as a world -class, shovel -ready

copper project in the United States.”

In addition to simplifying the ownership structure, the transaction also removes the current governance structure with

UCM, which was inherited from the previous owner of Rosemont. This allows Hudbay to have greater strategic

flexibility with respect to capital structure and project fina ncing options, and Hudbay intend s to evaluate a variety of

options, including the addition of a new, committed joint venture partner for the development of Rosemont. The

company expects to carry out this process in parallel with advancing the initial development of Rosemont, with the

objective to ultimately hold an approximate 70% interest in the project and maintain operatorship.

The UCM transaction is expected to close not later than April 25, 2019, subject to the approval of the parties’

respective boards of directors and the execution of a definitive agreement.

Rosemont is one of the world’s best undeveloped copper projects delivering a 15.5% after -tax unlevered IRR at a

copper price of $3.00 per pound based on the 2017 Feasibility Study published by Hudbay. Rosemont is expected to

produce approxima tely 127,000 tonnes of copper annually at a cash cost of $1.14 per pound (net of by -product

credits) over the first 10 years of operations.

CIBC Capital Markets acted as Hudbay’s financial advisor on the purchase of UCM’s interest in the Rosemont

project.

Forward-Looking Information

TSX, NYSE – HBM

2019 No. 8

2

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

securities legislation. Forward -looking information includes, but is not limited to, the completion of the acquisition of

the minority joint venture interest of Rosemont and a planned process to seek a joint venture partner and commence

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

Forward-looking information is based on, am ong 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, uncertainties, contingencies and other fa ctors 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, obtaining

the final permits for Rosemont and obtaining any required joint venture partner approvals to advance the project, the

timing and possi ble outcome of pending litigation related to the Rosemont permits, no significant unanticipated

litigation or delays to the development of Rosemont and the availability of financing to develop Rosemont.

The risks, uncertainties, contingencies and other fa ctors that may cause actual results to differ materially from those

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 general cost escalation), 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 should not place undue reliance on forward -looking informati on. 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.

About Hudbay

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

copper, gold and silver), molybdenum concentrate and zinc metal. With assets in North and South America, the

company is focused on the discovery, production and marketing of base and precious metals. Directly and through its

subsidiaries, Hudbay owns three polymetallic mines, four ore concentrators and a zinc production facility in northern

Manitoba and Saskatchewan ( Canada) and Cusco (Peru), and copper projects in Arizona and Nevada (United

States). The company’s growth strategy is focused on the exploration and development of properties it already

controls, as well as other mineral assets it may acquire that fit its strategic criteria. Hudbay’s vision is to be a

responsible, top-tier operator of long -life, low-cost mines in the Americas. Hudbay’s mission is to create sustainable

value through the acquisition, development and operation of high -quality, long-life deposits with exploration potential

in jurisdictions that support responsible mining, and to see the regions and communities in which the company

operates benefit from its presence. 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. Further information about Hudbay can be found on www.hudbay.com.

For further information, please contact:

Candace Brûlé

Director, Investor Relations

(416) 814-4387

[email protected]