TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Identity of the issuer or the underlying issuerof existing shares to which voting rights areattached:

Aureus Mining Inc.

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

¨

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

¨

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

¨

An event changing the breakdown of voting rights

S

Other (please specify):

¨

3. Full name of person(s) subject to thenotification obligation:

BlackRock, Inc.

4. Full name of shareholder(s) (if different from 3.):

5. Date of the transaction and date onwhich the threshold is crossed orreached:

9 December, 2015

6. Date on which issuer notified:

21 December, 2015

7. Threshold(s) that is/are crossed orreached:

Total holding for BlackRock Investment Management (UK) Limited has gone below 5%

Voting rights attached to shares holding for BlackRock Investment Management (UK) Limited has gone below 5%

Total holding for BlackRock, Inc. has gone below 5%

Voting rights attached to shares holding for BlackRock, Inc. has gone below 5%

8. Notified details:

A: Voting rights attached to shares

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights

Direct

Direct xi

Indirect xii

Direct

Indirect

CA0515471070

26,044,792

26,044,792

N/A

N/A

Below 5%

N/A

Below 5%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate

Exercise/Conversion Period

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date

Exercise/Conversion period

Number of voting rights instrument refers to

% of voting rights

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

N/A

Below 5%

9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable:

See Annex

Proxy Voting:

10. Name of the proxy holder:

11. Number of voting rights proxy holder will ceaseto hold:

12. Date on which proxy holder will cease to holdvoting rights:

13. Additional information:

BlackRock Regulatory Threshold Reporting Team

14. Contact name:

Gareth Slade

15. Contact telephone number:

020 7743 3650

Name

% of voting rights if it equals or is higher than the notifiable threshold

% of voting rights through financial instruments if it equals or is higher than the notifiable threshold

Total of both if it equals or is higher than the notifiable threshold

BlackRock, Inc.

BlackRock Holdco 2, Inc.

BlackRock Financial Management, Inc.

BlackRock International Holdings, Inc.

BR Jersey International Holdings L.P.

BlackRock Group Limited

BlackRock Investment Management (UK) Limited