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

Yes

Other (please specify):

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

Ruffer LLP (for its discretionary clients of the Ruffer Group)

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

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

09 December 2015

6. Date on which issuer notified:

17 December 2015

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

5% to less than 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

Indirect

Direct

Indirect

CA0515471070

20,850,000

20,850,000

20,850,000

20,850,000

-

Less than 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

20,850,000

Less than 5%

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

N/A

Proxy Voting:

10. Name of the proxy holder:

N/A

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

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

13. Additional information:

Ruffer LLP controls the voting rights over 20,850,000 shares (now less than 5% of the voting rights) of Aureus Mining Inc. which are held by the discretionary clients of Ruffer LLP and its subsidiaries (the voting of which is all controlled by Ruffer LLP).

This change from 5% to less than 5% is due to a recent placing of 168,300,000 new common shares issued by Aureus Mining Inc. The new shares were admitted to the market on 09 December 2015. The total number of voting rights in Aureus Mining Inc. is now 536,168,262.

14. Contact name:

Louise Stanway

15. Contact telephone number:

020 7963 8146