TR-1 Notification: Mrs Ann Gloag

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

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

Arc Minerals Limited

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

Other (please specify): Number of voting rights unchanged but below the minimum notification threshold due to an increase in the number of shares in issue

X

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

Ann Gloag O.B.E.

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

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

11 June 2018

6. Date on which issuer notified:

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

3%

8. Notified details:

A: Voting rights attached to shares viii, ix

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 x

Direct

Direct xi

Indirect xii

Direct

Indirect

Ordinary Shares

0.01p

16,171,218

16,171,218

16,171,218

16,171,218

2.9056%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/Conversion Period xiv

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

% of votingrights

N/A

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date xvii

Exercise/Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

N/A

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

16,171,218

2.9056%

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

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:

14. Contact name:

Graeme Dickson

15. Contact telephone number:

+44 (0) 203 411 1889

Arc Minerals Ltd

Nick von Schirnding (Chairman)

+44 (0) 20 3874 8664

SP Angel (Nominated Adviser & Broker)

Ewan Leggat / Lindsay Mair / Soltan Tagiev

+44 (0) 20 3470 0470