Le Lézard
Subject: Proxy/Proxy Vote

Both ISS and Glass Lewis Recommend Hudbay Shareholders Vote for Election of Waterton Nominees on the Blue Card


Waterton Precious Metals Fund II Cayman, LP ("Waterton Mining LP") and Waterton Mining Parallel Fund Offshore Master, LP ("Waterton Fund II"), each of which are managed by Waterton Global Resource Management, Inc. ("WGRM," and collectively with Waterton Mining LP and Waterton Fund II, "Waterton"), owning in the aggregate 12.09% of the issued and outstanding common shares (the "Shares") of Hudbay Minerals Inc. ("Hudbay" or the "Company") (TSX:HBM) (NYSE:HBM) today announced that leading proxy advisory firm Institutional Shareholder Services Inc. ("ISS") has joined Glass, Lewis & Co. ("Glass Lewis") in recommending that shareholders vote FOR change at Hudbay on Waterton's Blue proxy card. ISS recommended the election of Waterton's independent, highly-qualified director nominees ? David Smith and Daniel Muniz Quintanilla ? to the Hudbay Board of Directors (the "Board") at the Annual and Special Meeting of Shareholders (the "Meeting").

In its report, ISS said the following:1

Previously, Glass Lewis said:2

Isser Elishis, Chief Investment Officer of Waterton Global Resource Management, commented: "We are extremely pleased that both ISS and Glass Lewis have supported our case for change to the Hudbay Board. Waterton continues to believe our nominees have the right experience and expertise to help Hudbay unlock its significant potential and urges shareholders to vote FOR the election of all four of our nominees ? Peter Kukielski, Richard Nesbitt, Daniel Muniz Quintanilla and David Smith. We are confident our nominees are well-positioned to provide Hudbay with the best opportunity for long-term value creation."

Waterton urges shareholders to vote for the Waterton Nominees on the BLUE form of proxy and/or BLUE voting instruction form by 5:00 p.m. (Eastern time) on Thursday, May 2, 2019. Shareholders willing to express their support for the Waterton Nominees may contact Kingsdale Advisors, our strategic shareholder advisor and proxy solicitation agent, at 1-888-518-1563 toll-free in North America, or at 416-867-2272 outside of North America (collect calls accepted), or by email at [email protected].

Visit www.NewHudbay.com for additional information.

About Waterton

Waterton is an investment firm that manages capital for global institutional investors, sovereign wealth funds and endowments. The firm has ~US$2 billion in assets under management and focuses solely on the metals and mining sector. Waterton has a culture of thoroughness and a disciplined approach to capital allocation, and utilizes its significant industry expertise to produce out-sized risk-adjusted returns.

Legal Notices and Disclaimers

The data, information and opinions contained or referenced herein (collectively, the "Information") is for general informational purposes only for the holders of Shares ("Shareholders") in order to provide the views of Waterton regarding certain changes we are requesting to the composition of the Board, and other matters which Waterton believes to be of concern to Shareholders described herein. The Information is not tailored to specific investment objectives, the financial situation, suitability, or particular need of any specific person(s) who may receive the Information, and should not be taken as advice in considering the merits of any investment decision. The views expressed in the Information represent the views and opinions of Waterton, whose opinions may change at any time and which are based on analyses of Waterton and its advisors. Unless otherwise indicated, the Information has been derived or obtained from public disclosure and filings with respect to and/or made by Hudbay and other issuers that we consider to be comparable to Hudbay, and from other third party reports (see "Legal Notices and Disclaimers - Disclaimer Respecting Publicly Sourced Information" in Waterton's information circular dated April 15, 2019 (the "Waterton Circular"), a copy of which is available on SEDAR at www.sedar.com or on www.newhudbay.com).

The Information contains forward-looking statements or forward-looking information within the meaning of applicable securities laws (collectively, "forward-looking statements"), including, without limitation, Waterton's and Hudbay's respective priorities, plans and strategies for Hudbay and certain members of Hudbay's operational, compensation and other noted peer groups' anticipated financial and operating performance and business prospects. All statements and information, other than statements of historical fact, included herein are forward-looking statements, including, without limitation, statements regarding activities, events or developments that Waterton expects or anticipates may occur in the future. Certain forward-looking statements contained herein may be considered to be future-oriented financial information or a financial outlook for the purposes of applicable securities laws. These forward-looking statements can be identified by the use of forward-looking words such as "will," "expect," "intend," "plan," "estimate," "anticipate," "believe" or "continue" or similar words and expressions or the negative thereof. There can be no assurance that the plans, intentions or expectations upon which these forward-looking statements are based will occur or, even if they do occur, will result in the performance, events or results expected.

We caution readers not to place undue reliance on forward-looking statements contained herein, which are not a guarantee of performance, events or results and are subject to a number of known and unknown risks and uncertainties, including but not limited to those set forth in the Waterton Circular under the heading "Legal Notices and Disclaimers ? Forward-Looking Statements" and those risks and uncertainties detailed in the continuous disclosure and other filings of Hudbay and certain members of Hudbay's operational, compensation and other noted peer groups with applicable securities regulators, copies of which are available on SEDAR at www.sedar.com or on the Electronic Data Gathering, Analysis, and Retrieval at www.sec.gov. We urge you to carefully consider those risks and uncertainties. The forward-looking statements contained herein are expressly qualified in their entirety by this cautionary statement. Unless expressly stated otherwise, the forward-looking statements included herein are made as of the date hereof and Waterton disclaims any obligation to publicly update such forward-looking statements, except as required by applicable law.

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1 Permission to quote ISS was neither sought nor obtained. Emphasis added.
2 Permission to quote Glass Lewis was neither sought nor obtained. Emphasis added.



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