Nyrstar NV

AGM Information • Dec 29, 2015

LIMITED LIABILITY COMPANY (NAAMLOZE VENNOOTSCHAP) Registered Office: Zinkstraat 1, 2490 Balen, Belgium Company Number VAT BE 0888.728.945 RPR/RPM Antwerp, division Turnhout

INVITATION

EXTRAORDINARY GENERAL MEETING

to be held on Monday 18 January 2016 at 10:30 a.m.

As the quorum required for the deliberation and voting on certain items in the agenda of the extraordinary general shareholders' meeting held on Wednesday 23 December 2015, was not reached, the holders of securities issued by Nyrstar NV (the "Company") are invited to attend a second extraordinary general shareholders' meeting of the Company before a notary public.

GENERAL INFORMATION

Date, hour and venue: The extraordinary general shareholders' meeting will be held on Monday 18 January 2016 at 10:30 a.m., at Diamant Building, A. Reyerslaan 80, 1030 Brussels, Belgium or at such other place as will be indicated at that place at that time.

Opening of the doors: In order to facilitate the keeping of the attendance list on the day of the extraordinary general shareholders' meeting, the shareholders and their representatives are invited to register as of 9:30 a.m.

AGENDA

Agenda and proposed resolutions: The agenda and proposed resolutions of the extraordinary general shareholders' meeting of the Company, which, as the case may be, can be amended at the meeting on behalf of the Board of Directors, are as follows:

1. Cancellation of own shares held by the Company

Proposed resolution: The general shareholders' meeting decides to cancel all of the Company's own shares that are held by the Company and, as the case may be, its subsidiaries, subject to the following terms and conditions:

• (a) All of the own shares in the Company that are held by the Company and, as the case may be, its subsidiaries, shall be cancelled without reduction or change to the Company's share capital.
• (b) All of the other shares in the Company that remain outstanding after the cancellation of shares referred to in paragraph (a) shall each represent the same fraction of the Company's share capital.
• (c) Article 5 of the Company's Articles of Association is amended and restated to take into account the number of outstanding shares in the Company that remain outstanding after the cancellation of shares referred to in paragraph (a).
• (d) A power of attorney is granted to each Director, each member of the Company's management committee and the Company's Company Secretary, each acting singly and separately, in order to restate the Company's Articles of Association and take the necessary or useful administrative steps to implement the foregoing cancellation.

2. Capital increase in cash with statutory preferential subscription rights for the shareholders

Proposed resolution: The general shareholders' meeting decides to increase the Company's share capital in cash with a maximum amount of two hundred and seventy-five million euro (EUR 275,000,000) (including issue premium), with statutory preferential subscription rights for the existing shareholders of the Company to subscribe for the new shares, and to delegate to certain Directors and to the senior executive management of the Company the powers to further implement the capital increase, subject to the following terms and conditions (and provided that the Joint Bookrunners and Trafigura (each as further defined in paragraph (i) below) have certain contractual rights to determine, together with the Company, the terms and conditions of the capital increase):

• (a) Capital increase: The share capital shall be increased with a maximum amount of two hundred and seventy-five million euro (EUR 275,000,000) (including issue premium) through the issue of new shares without nominal value of the same nature as the existing and outstanding shares and which shall have the same rights and benefits as the existing and outstanding shares, with statutory preferential subscription rights for the existing shareholders, in consideration of a contribution in cash. The capital increase shall be subject to the completion of the offering and allocation of the new shares as contemplated below.
• (b) Issue price, number of new shares and subscription ratio: The number of new shares, the issue price of the new shares, the subscription ratio to subscribe for the new shares with statutory preferential subscription rights, and the mechanism to determine the number of new shares to be issued, the issue price, the subscription ratio and settlement process shall be determined by the Placement Committee (as further defined in paragraph (m) below), who shall be authorised to do this together with the Joint Bookrunners and Trafigura. The issue price of the new shares cannot be lower than the fractional value of the existing shares of the Company.
• (c) Allocation of the issue price of the new shares: The issue price of the new shares must be entirely paid up in cash at the time of the issue of the new shares. Per share issued, an amount equal to the fractional value of the existing shares of the Company shall be booked as share capital, and the balance of the issue price shall be booked as issue premium. Such issue premium shall be accounted for on a non-distributable account on the liabilities side of the Company's balance sheet under its net equity and the account on which the issue premium shall be booked shall, like the share capital, serve as the guarantee for third parties and can only be reduced on the basis of a lawful resolution of the general shareholders' meeting passed in the manner required for an amendment to the Company's Articles of Association. Following the capital increase and the issue of new shares, each of the shares (existing and new) shall represent the same fraction of the Company's share capital.
• (d) Nature and form of the new shares: The new shares to be issued within the framework of the capital increase shall have the same rights and benefits as, and shall rank pari passu in all respects, including as to entitlement to dividends, with, the existing and outstanding shares of the Company at the moment of their issue and will be entitled to distributions in respect of which the relevant record date or due date falls on or after the date of issue of the shares. The new shares shall be in registered or dematerialised form as each subscriber may request. The Company shall apply for the admission of the new shares to trading on the regulated market of Euronext Brussels.
• (e) Public offering in Belgium: Subject to applicable company, financial and securities law rules, the new shares shall be offered via a public offering in Belgium. Subject to the relevant provisions of applicable law, the new shares may also be offered via one or more public offerings and/or exempt private placements to institutional, qualified or professional investors or individuals in Belgium or other jurisdictions outside of

Belgium as shall be determined by the Placement Committee (as applicable, together with the Joint Bookrunners and Trafigura).

• (f) Offering with statutory preferential subscription rights to subscribe for the new shares: In the offering and allocation of the new shares, the existing shareholders of the Company at the time of the offering shall have a statutory preferential subscription right to subscribe for the new shares in accordance with the provisions of Articles 592 and 593 of the Belgian Companies Code. Subject to applicable company, financial and securities law rules, the statutory preferential subscription right of the shareholders shall be freely tradable on Euronext Brussels, separately from the existing shares, also to persons who are currently not shareholders. Each share in the Company shall entitle the shareholder to one statutory preferential subscription right. The statutory preferential subscription rights shall be tradable during a rights subscription period of at least 15 calendar days. The start and end date of the rights subscription period shall be determined by the Placement Committee (together with the Joint Bookrunners and Trafigura). The Company shall apply for the admission to trading of the rights on the regulated market of Euronext Brussels during the rights subscription period. Subject to applicable company, financial and securities law rules, the statutory preferential subscription rights shall give the right to subscribe for the new shares at the subscription ratio that shall be determined by the Placement Committee (together with the Joint Bookrunners and Trafigura) as set out in paragraph (b) above. The rights cannot be used to subscribe for fractions of new shares, as the case may be. Subject to applicable company, financial and securities law rules, shareholders of the Company or persons having acquired statutory preferential subscription rights who do not hold a sufficient number of statutory preferential subscription rights to subscribe for a round number of new shares at the applicable subscription ratio will have the right to elect, during the rights subscription period, either to purchase additional statutory preferential subscription rights in order to subscribe for new shares at the applicable subscription ratio or to transfer or sell all or part of their statutory preferential subscription rights. To the extent the statutory preferential subscription rights are not exercised during the rights subscription period, such rights, as the case may be in the form of scrips, shall, subject to applicable company, financial and securities law rules, be sold or placed during a subsequent offering period via an exempt private placement or bookbuilding (accelerated or not) to institutional, qualified or professional investors or individuals in and outside of Belgium. The start and end date of this subsequent subscription period shall be determined by the Placement Committee. These investors may also include existing shareholders of the Company (including, for the avoidance of doubt, Trafigura), which can be given priority. The buyers of such rights or scrips shall be obliged to subscribe for the new shares at the applicable subscription ratio and at the same issue price as applicable during the rights subscription period. Any scrips shall not be transferable and the Company shall not apply for the admission to trading of scrips on the regulated market of Euronext Brussels. The net proceeds of the sale or placement of such rights or scrips (after deduction of relevant transaction costs and expenses and applicable taxes, as applicable) shall be distributed on a pro rata basis to the holders of statutory preferential subscription rights that did not exercise their right, provided that the net proceeds shall not be less than one euro cent (EUR 0.01) per right or scrip. If the net proceeds are less, these shall accrue to the Company.
• (g) Implementation of the offering: Subject to applicable company, financial and securities law rules and subject to the provisions of the foregoing paragraphs, the Placement Committee (as applicable, together with the Joint Bookrunners and Trafigura) shall further determine the practical implementation of the offering and allocation of the new shares in accordance with the foregoing, including (but not limited to) (i) the jurisdictions where the offering of the new shares will occur, (ii) the manner in which the offering in such jurisdictions will occur (public or private), (iii) the manner and extent in which the statutory preferential subscription rights shall be tradable and exercisable, (iv) the manner in which non-exercised statutory preferential subscription rights (as the case may be, in the form of scrips) shall be sold or placed during a subsequent offering period, as the case may be, (v) the

manner in which the proceeds of such sale or placement of non-exercised statutory preferential subscription rights shall be distributed to the holders of non-exercised statutory preferential subscription rights, (vi) the terms and conditions for the underwriting of the offered shares, non-exercised statutory preferential subscription rights or scrips, as the case may be, and (vii) other completion mechanisms. In making this determination, the Placement Committee, the Joint Bookrunners and Trafigura shall take into consideration the terms and conditions of the Underwriting Commitments referred to in paragraph (i) below. Subject to the foregoing, the Company shall prepare a prospectus or offering document for the purpose of the offering of the new shares and the admission to trading of the new shares on the regulated market of Euronext Brussels, to be approved by the Belgian Financial Services and Markets Authority in accordance with applicable law. It is acknowledged that it is possible that applicable financial and securities laws rules of jurisdictions outside of Belgium can limit or restrict the right of shareholders and other holders of statutory preferential subscription rights outside of Belgium to subscribe for new shares, to trade in statutory preferential subscription rights or to exercise statutory preferential subscription rights. Unless decided otherwise by the Placement Committee, the Company shall not be obliged to offer the new shares, statutory preferential subscription rights or scrips to the public in jurisdictions outside of Belgium.

• (h) Underwriting: One or more banks or financial institutions shall or may be appointed by the Company for the purpose of the offering, underwriting, allocation and placement of some or all of the new shares. Within the framework of the offering, underwriting, allocation and placement of the new shares, the underwriters shall be permitted to subscribe for the new shares in the name of, and/or on behalf of, the ultimate subscribers for the new shares, or in their own name and/or on their own behalf in order to allocate and place the new shares (directly or indirectly) to the ultimate subscribers for the new shares. The terms and conditions of the services and underwriting by the underwriters shall be further set out in the agreements between the Company and the underwriters.
• (i) Backstop: To the extent statutory preferential subscription rights are not exercised during a first offering or rights subscription period and cannot be sold (as the case may be in the form of scrips) or are not exercised pursuant a subsequent offering period as contemplated above for all or part of the new shares to be issued in the framework of the capital increase, the remaining shares can be subscribed for, in whole or in part, by (i) Deutsche Bank AG, London Branch, and KBC Securities NV (collectively the "Joint Bookrunners"), pursuant to commitments received by the Company from such financial institutions, (ii) Urion Holdings (Malta) Ltd. and/or any other affiliated company (verbonden vennootschap) of the latter in the sense of article 11 of the Belgian Companies Code (collectively "Trafigura"), pursuant to commitments received from such party on 9 November 2015, or (iii) any other party as can be determined by the Placement Committee on behalf of the Company. The terms and conditions of such subscription can be further set out in one or more underwriting or subscription commitments or agreements received by the Company or entered into on behalf of the Company with respectively such Joint Bookrunners, Trafigura or other parties before or after the date of this extraordinary general shareholders' meeting (collectively the "Underwriting Commitments").
• (j) Start and duration of the offering and rights subscription period, and the termination of the offering: The Placement Committee (together with the Joint Bookrunners and Trafigura) shall determine the start and duration of the offering and rights subscription period, it being understood that the rights subscription period referred to in paragraph (f) must be at least 15 calendar days. Depending on the mechanism that shall be used for the offering and allocation of the new shares and the statutory preferential subscription rights to subscribe for the new shares, and subject to applicable company, financial and securities law rules, several offering or subscription periods can be used. The capital increase contemplated by the foregoing provisions is to be completed by 27 April 2016 at the latest. The Placement Committee shall have the

power not to pursue the offering, or, in case the offering has already started, suspend or cancel the completion of the offering if the Placement Committee determines that market circumstances do not allow for the occurrence or completion of the capital increase in circumstances satisfactory to it. Additional conditions precedent to the start of the offering and the completion of the offering can inter alia be set out in the Underwriting Commitments.

• (k) Completion of the capital increase: Subject to the completion of the offering and allocation of the new shares, the capital increase can be completed in one or more times. The manner of receiving and accepting subscriptions for the new shares shall be determined by the Placement Committee, subject to applicable company, financial and securities law rules. Additional terms and conditions precedent for the completion of the offering and the capital increase can be set out in the agreements with the underwriters and the Underwriting Commitments. In accordance with the provisions of Article 584 of the Belgian Companies Code, to the extent the capital increase cannot be fully placed, the capital increase can nevertheless take place to the extent of the subscriptions received and accepted within the framework of the offering and the allocation of the new shares as contemplated above.
• (l) Amendment of the Articles of Association: Upon each completion of the capital increase and issue of new shares as contemplated above, Article 5 of the Company's Articles of Association shall be amended and restated to take into account the resulting share capital and number of outstanding and existing shares.
• (m) Appointment of the Placement Committee: Subject to the provisions of paragraphs (a) to (l) above, the general shareholders' meeting hereby appoints a committee (the "Placement Committee") consisting of at least (i) one Independent Director and one member of the Company's management committee, or (ii) two members of the Company's management committee. The Placement Committee is granted the flexibility and power to further implement the capital increase, taking into account the Underwriting Commitments and, as applicable, together with the Joint Bookrunners and Trafigura, including (without being limited to) the power to (i) determine the number and the issue price of the new shares and the subscription ratio to subscribe for the new shares with statutory preferential subscription rights, (ii) determine the practical implementation of the offering and the allocation of the new shares as contemplated by paragraphs (e) to (g), (iii) determine on behalf of the Company the scope, terms and conditions of the services to be provided by the underwriters, as well as the scope, terms and conditions of the underwriting by the underwriters as contemplated by paragraph (h), (iv) determine or confirm, as the case may be, the scope, terms and conditions for the Underwriting Commitments as contemplated by paragraph (i), (v) determine the start and duration of the offering and rights subscription period(s) and the offering of unexercised rights or scrips and, as the case may be, the termination of the offer, as contemplated by paragraph (j), (vi) take all useful or necessary steps with the competent regulatory authorities and Euronext Brussels in connection with the offering and allocation of the new shares, and the admission to trading of the rights and new shares on Euronext Brussels, (vii) proceed with the establishment and recording of the capital increase as contemplated by paragraph (k), the resulting amendment of the Articles of Association and, as the case may be, the amount of the issue premium, and (viii) do such other things as shall be useful, appropriate or necessary in connection with the foregoing. The Placement Committee shall have the right to sub-delegate the exercise of the powers granted to it pursuant to the present resolution (in whole or in part). In accordance with Article 589 of the Belgian Companies Code, the completion of the capital increase can be established at the request of the Board of Directors or one or more Directors.

Quorum: As this general shareholders' meeting constitutes the second extraordinary general shareholders' meeting for the aforementioned agenda items, no quorum is required for the deliberation and voting on the items referred to in the aforementioned agenda.

Voting and majority: Subject to applicable legal provisions, each share shall have one vote. In accordance with applicable law, the proposed resolutions referred to in the aforementioned agenda of the extraordinary general shareholders' meeting shall be passed if they are approved by a majority of 75% of the votes validly cast by the shareholders. Pursuant to Article 537 of the Belgian Companies Code, the holders of bonds have the right to attend the general meeting, but only with an advisory vote.

PARTICIPATION TO THE MEETING

Introduction: Holders of securities issued by the Company that wish to attend the extraordinary general shareholders' meeting of the Company should take into account the formalities and procedures described below.

Registration date: The registration date for the extraordinary general shareholders' meeting shall be Monday 4 January 2016, at midnight (12:00 a.m., Central European Time, GMT+1). Only persons owning securities issued by the Company on Monday 4 January 2016, at midnight (12:00 a.m., Central European Time, GMT+1) shall be entitled to participate and, as the case may be, vote at the extraordinary general shareholders' meeting. Only shareholders are entitled to vote. The holders of bonds can attend the general meeting but only with an advisory vote. Shareholders, as well as holders of bonds must satisfy the formalities that are described under "—Participation to the meeting".

Participation to the meeting: In order to be able to participate to the extraordinary general shareholders' meeting, a holder of securities issued by the Company must satisfy two conditions: (a) be registered as holder of securities on the registration date and (b) notify the Company, as described below.

• (a) Registration: Firstly, the right for a holder of securities to participate to and, as applicable, to vote at the extraordinary general shareholders' meeting is only granted on the basis of the registration of the securities concerned, on the aforementioned registration date at midnight, via registration, in the applicable register book for the securities concerned (for registered securities) or in the accounts of a certified account holder or relevant settlement institution for the securities concerned (for dematerialised securities or securities in book-entry form).
• (b) Notification: Secondly, in order to be admitted to the extraordinary general shareholders' meeting, the holders of securities issued by the Company must notify the Company or KBC Bank whether they want to participate to the meeting. The holders of securities that wish to make such notification can make use of the registration notice form that can be obtained at the Company's registered office and on the Company's website. The notice must reach the Company by mail at its registered office (Zinkstraat 1, 2490 Balen, Belgium, Attention: Virginie Lietaer, Company Secretary) or by e-mail at registrations@nyrstar.com at the latest on the sixth calendar day prior to the extraordinary general shareholders' meeting, i.e. on or before Tuesday 12 January 2016 at the latest. The notice to KBC Bank can be made at the counters of KBC Bank on or before Tuesday 12 January 2016 at the latest. For the holders of dematerialised securities or securities in book-entry form, the notice should include a certificate confirming the number of securities that have been registered in their name on the registration date. The certificate can be obtained by the holder of the dematerialised securities or securities in book-entry form with the certified account holder or the applicable settlement institution for the securities concerned.

Voting by mail: The shareholders can vote by mail in accordance with Article 28 of the Company's Articles of Association. Votes by mail must be cast by means of the form prepared by the Company. The vote by mail form can be obtained at the Company's registered office and on the Company's website (www.nyrstar.com). The vote by mail form must be signed in writing or electronically. The electronic signature must be an advanced electronic signature in the sense of Article 4, §4 of the Belgian Act of 9 July 2001 regarding the determination of certain rules in relation to the legal framework for electronic signatures and certification services, or with an electronic signature that complies with the conditions set out in Article 1322 of the Belgian Civil Code. Signed voting by mail forms must reach the Company by mail at its registered office (Zinkstraat 1, 2490 Balen, Belgium, Attention: Virginie Lietaer, Company Secretary) or by e-mail at registrations@nyrstar.com at the latest on the sixth calendar day prior to the extraordinary general shareholders' meeting, i.e. on or before Tuesday 12 January 2016 at the latest. A shareholder who wishes to vote by mail must in any case comply with the formalities to attend the meeting, as explained under "—Participation to the meeting".

Representation by proxy: Holders of securities can attend the meeting and vote, as applicable, through a proxy holder. Proxy forms can be obtained at the Company's registered office and on the Company's website (www.nyrstar.com). The proxy must be signed in writing or electronically. The electronic signature must meet the same requirements as the electronic signature for vote by mail forms (see also "—Voting by mail"). Signed proxies must reach the Company by mail at its registered office (Zinkstraat 1, 2490 Balen, Belgium, Attention: Virginie Lietaer, Company Secretary) or by e-mail at registrations@nyrstar.com at the latest on the sixth calendar day prior to the extraordinary general shareholders' meeting, i.e. on or before Tuesday 12 January 2016 at the latest. The appointment of a proxy holder must be made in accordance with the applicable rules of Belgian law, including in relation to conflicts of interest and the keeping of a register. Holders of securities who wish to be represented by proxy must, in any case comply with the formalities to attend the meeting, as explained under "—Participation to the meeting".

Question right: Every shareholder has the right to ask questions to the Directors and Statutory Auditor related to items on the agenda of a general shareholders' meeting. Questions can be asked during the meeting or can be submitted in writing prior to the meeting. Written questions must reach the Company by mail at its registered office (Zinkstraat 1, 2490 Balen, Belgium, Attention: Virginie Lietaer, Company Secretary) or by e-mail at registrations@nyrstar.com at the latest on the sixth calendar day prior to the extraordinary general shareholders' meeting, i.e. on or before Tuesday 12 January 2016 at the latest. Written and oral questions will be answered during the meeting concerned in accordance with applicable law. In addition, in order for written questions to be considered, the shareholders who submitted the written questions concerned must comply with the formalities to attend the meeting, as explained under "—Participation to the meeting".

Access to the meeting room: The natural persons who attend the extraordinary general shareholders' meeting in their capacity as owner of securities, holder of proxies or representative of a legal entity must be able to provide evidence of their identity in order to be granted access to the meeting room. In addition, the representatives of legal entities must hand over the documents establishing their capacity as corporate representative or attorney-in-fact.

AVAILABLE INFORMATION

The following documentation is available on the Company's website (http://www.nyrstar.com/investors/en/shareholderinformation/Pages/Shareholder-Meetings.aspx): the notice convening the extraordinary general shareholders' meeting, the agenda and proposed resolutions or, if no resolutions are proposed, a commentary by the Board of Directors, updates of the agenda and proposed resolutions, in case of amendments to the agenda and proposed resolutions, the registration notice, the vote by mail forms, and the proxy forms. Prior to the extraordinary general shareholders' meeting, holders of securities of the Company can also obtain at the registered office of the Company (Zinkstraat 1, 2490 Balen, Belgium), free of cost, a copy of this documentation. The aforementioned website also mentions the total number of outstanding shares and voting rights of the Company.

On behalf of the Board of Directors

THIS DOCUMENT IS NOT AN OFFER TO SELL OR A SOLICITATION OF AN OFFER TO BUY BONDS, SHARES OR OTHER SECURITIES OF NYRSTAR NV. THE INFORMATION CONTAINED HEREIN IS NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION (DIRECTLY OR INDIRECTLY) IN OR INTO THE UNITED STATES, AUSTRALIA, CANADA, JAPAN, SOUTH AFRICA OR ANY OTHER JURISDICTION WHERE TO DO SO WOULD BE UNLAWFUL.