Talvivaara Mining Company Plc

Notice of EGM

NOTICE OF THE EXTRAORDINARY GENERAL MEETING

Notice is given to the shareholders of Talvivaara Mining Company Plc (the "Company") of the extraordinary general meeting to be held on 23 November 2017 at 10:00 a.m. (Finnish time) in Espoo at the premises of Aalto University, Auditorium A1, at Otakaari 1, Espoo, Finland. The reception of persons who have registered for the meeting and the distribution of voting tickets will commence at 9:00 a.m. (Finnish time).

A. MATTERS ON THE AGENDA OF THE EXTRAORDINARY GENERAL MEETING

At the extraordinary general meeting, the following matters will be considered:

1. Opening of the meeting

2. Calling the meeting to order

3. Election of persons to scrutinise the minutes and to supervise the counting of votes

4. Recording the legality of the meeting

5. Recording the attendance at the meeting and adoption of the list of votes

6. Resolution to amend the Articles of Association of the Company

The Board of Directors proposes that the extraordinary general meeting would resolve to amend section 1§ of the Articles of Association concerning the Company name and the corporate seat of the Company. According to the proposal, the amended section 1§ of the Articles of Association concerning the Company name and the corporate seat would in its entirety read as follows:

1§ Name and Corporate Seat of the Company

"The name of the Company is Ahtium Oyj and its domicile is Espoo. The parallel trade name of the Company in English is Ahtium Plc."

The Board of Directors further proposes that, provided the corporate seat of the Company is amended in accordance with the proposal by the Board of Directors, the extraordinary general meeting would resolve to make an amendment to the third paragraph of section 10§ of the Articles of Association concerning the venue of the general meetings, which after the amendment would read as follows:

10§ Convening the General Meeting (third paragraph)

"The General Meeting shall be held either in the corporate seat of the Company or in Helsinki."

7. Resolution to authorise the Board of Directors to resolve on share issue and the issuance of special rights entitling to shares

The Board of Directors proposes that the extraordinary general meeting would resolve to authorise the Board of Directors to decide on the issuance of new shares and the transfer of the Company's own shares as well as the issuance of special rights referred to in Chapter 10 Section 1 of the Finnish Companies Act to provide more alternatives for financing the development of the Company's new business opportunities.