SECURITIES AND EXCHANGE COMMISSION

FORM 6-K Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Filing Date: 2020-09-09 | Period of Report: 2020-09-09 SEC Accession No. 0001062993-20-004402

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FILER Hudbay Minerals Inc. Mailing Address Business Address 25 YORK STREET, SUITE 25 YORK STREET, SUITE CIK:1322422| IRS No.: 980485558 | Fiscal Year End: 1231 800 800 Type: 6-K | Act: 34 | File No.: 001-34244 | Film No.: 201165831 TORONTO A6 M5J 2V5 TORONTO A6 M5J 2V5 SIC: 1000 Metal 416-362-8181

Copyright © 2020 www.secdatabase.com. All Rights Reserved. Please Consider the Environment Before Printing This Document UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2020 Commission File Number: 001-34244 HUDBAY MINERALS INC. (Translation of registrant’s name into English) 25 York Street, Suite 800 Toronto, M5J 2V5, (Address of principal executive offices) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F. Form 20-F [ ] Form 40-F [X] Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): [ ] Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): [ ] Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. Yes [ ] No [X] If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- ______EXPLANATORY NOTE On September 9, 2020, Hudbay Minerals Inc. (“Hudbay”) filed on the Canadian Securities Administrators’ System for Electronic Document Analysis and Retrieval (SEDAR) website at www.sedar.com the following document: (1) News Release dated September 9, 2020. Copies of the filings are attached to this Form 6-K and incorporated herein by reference, as follows: • Exhibit 99.1 — News Release dated September 9, 2020 2 SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. HUDBAY MINERALS INC. (registrant)

By: /s/ Patrick Donnelly Name:Patrick Donnelly Title: Vice President and General Counsel Date: September 9, 2020 3 EXHIBIT INDEX The following exhibits are furnished as part of this Form 6-K: Exhibit Description

99.1 News Release dated September 9, 2020 4

Copyright © 2020 www.secdatabase.com. All Rights Reserved. Please Consider the Environment Before Printing This Document Hudbay Announces Offering of US$500 Million Aggregate Principal Amount of Senior Notes Toronto, Ontario, September 9, 2020 – Hudbay Minerals Inc. (“Hudbay” or the “company”) (TSX, NYSE:HBM) today announced that it is offering US$500 million aggregate principal amount of senior notes (the “New Notes”). The interest rate and other terms of the New Notes will be determined at pricing and are dependent upon market conditions and other factors. Hudbay plans to use the net proceeds from the offering of the New Notes to refinance all of its outstanding US$400 million aggregate principal amount of 7.250% senior notes due 2023 (the “Existing Notes”), pay any related premium, costs and expenses and for general corporate purposes. The New Notes will not be registered under the U.S. Securities Act of 1933, as amended (the “Securities Act”), or the securities laws of any other jurisdiction. The New Notes will not be qualified by a prospectus in Canada. Unless they are registered or qualified by a prospectus, the New Notes may be offered only in transactions that are exempt from registration under the Securities Act, prospectus qualification under Canadian securities laws or the securities laws of any other jurisdiction. In the United States, the New Notes will be offered, and sold, only to persons reasonably believed to be “qualified institutional buyers” (as defined in Rule 144A under the Securities Act) and outside the United States to non-U.S. persons in compliance with Regulation S under the Securities Act. This press release is neither an offer to sell nor the solicitation of an offer to buy the New Notes, the Existing Notes or any other securities and shall not constitute an offer to sell or solicitation of an offer to buy, or a sale of, the New Notes, the Existing Notes or any other securities in any jurisdiction in which such offer, solicitation or sale is unlawful. This press release does not constitute a notice of redemption with respect to the Existing Notes. 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”, “strategy”, “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 achieved” 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 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, uncertainties, 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 risks, uncertainties, contingencies and other factors that may cause actual results to differ materially from those expressed or implied by the forward-looking information are described under the heading “Risk Factors” in our most recent annual information form for the year ended December 31, 2019 and our management’s discussion and analysis for the three and six months ended June 30, 2020. 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 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.

Copyright © 2020 www.secdatabase.com. All Rights Reserved. Please Consider the Environment Before Printing This Document About Hudbay Hudbay (TSX, NYSE: HBM) is a diversified mining company primarily producing concentrate (containing copper, and silver) and zinc metal. The company is governed by the Canada Business Corporations Act and its shares are listed under the symbol "HBM" on the , Stock Exchange and Bolsa de Valores de Lima. For further information, please contact: Candace Brûlé Director, Investor Relations (416) 814-4387 [email protected] 2

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