Holding(s) in Company

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

APR ENERGY PLC

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

An acquisition or disposal of voting rights

X

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):

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

Mason Hill Advisors, LLC

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

Nortrust Nominees Limited is a nominee shareholder in respect of 5,923,074 of the shares in APR ENERGY PLC described above.

Goldman Sachs International is a nominee shareholder in respect of 5,516,779 shares of the shares in APR ENERGY PLC described above.

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

5 February 2015

6. Date on which issuer notified:

6 February 2015

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

12%

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 SHARESISIN: GB00B58D4C52

10,535,055

10,535,055

11,439,853

12.14%

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

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

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

10,535,055

12.14%

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:

Mason Hill Advisors, LLC

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

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

13. Additional information:

Mason Hill Advisors, LLC acts as an investment manager for Equinox Partners, LP, Kuroto Fund, L.P. and Mason Hill Partners, LP.

Equinox Partners, LP beneficially holds 5,516,779 (or 5.85%) of the shares in APR Energy PLC described above, Mason Hill Partners, L.P. beneficially holds 1,611,382 (or 1.71%) of the shares in APR Energy PLC described above and Kuroto Fund, L.P. beneficially holds 4,311,692 (or 4.57%) of the shares in APR Energy PLC described above.

14. Contact name:

Roger Anscher

15. Contact telephone number:

+001 646 833 2788

Note: Annex should only be submitted to the FCA not the issuer

Annex: Notification of major interests in sharesxxii

A: Identity of the persons or legal entity subject to the notification obligation

Full name

(including legal form of legal entities)

Mason Hill Advisors, LLC

Contact address

(registered office for legal entities)

623 Fifth Avenue, 27th Floor, New York, NY 10022, United States

Phone number & email

+001 646 833 2788 / [email protected]

Other useful information

(at least legal representative for legal persons)

Roger Anscher, Chief Operating Officer and Chief Compliance Officer at Mason Hill Advisors, LLC

B: Identity of the notifier, if applicable

Full name

Steven Ward at Ropes & Gray International LLP

Contact address

Ropes & Gray International LLP, 5 New Street Square, London EC4A 3BF

Phone number & email

Tel: +44(0)20 3122 1154

Email: [email protected]

Other useful information

(e.g. functional relationship with the person or legal entity subject to the notification obligation)

Legal counsel

C: Additional information

For notes on how to complete form TR-1 please see the FCA website.