MASTERMYNE GROUP LIMITED — Director's Dealing 2015

Dec 6, 2015

7 December 2015

Mr Ivan Tatkovich Adviser, Listings Compliance ASX Compliance Pty Limited 20 Bridge Street Sydney NSW 2000

Dear Ivan,

Appendix 3Y – Change of Directors Interest Notice

I have enclosed a Form 3Y in relation to shares in Mastermyne Group Limited held by my wife and Central Park Nominees Pty Ltd as trustee for Central Park Trust. My wife is the sole director of Central Park Nominees Pty Ltd and the main beneficiary of the Central Park Trust.

I do not have a relevant interest in the shares as defined in the Corporations Act as I do not have any ability to control the voting or the disposal of the shares. I am not a beneficiary of the Central Park Trust. As I do not have a relevant interest in the shares, they have not been disclosed to date.

Earlier this week, the Central Park Trust acquired additional shares in Mastermyne. The board of Mastermyne has determined that going forward it will disclose shares held by my wife and Central Park Trust as if I had a relevant interest in them. The board believes this will provide investors with better information about directors’ interests in Mastermyne.

Yours Sincerely

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James Wentworth Non-Executive Director Mastermyne Group Limited

Appendix 3Y Change of Director’s Interest Notice

Rule 3.19A.2

Appendix 3Y

Change of Director’s Interest Notice

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 30/09/01 Amended 01/01/11

Name of entity: Mastermyne Group Limited

ACN: 142 490 579

We (the entity) give ASX the following information under listing rule 3.19A.2 and as agent for the director for the purposes of section 205G of the Corporations Act.

Name of Director	James Wentworth
Date of last notice	1 April 2011

Part 1 - Change of director’s relevant interests in securities

In the case of a trust, this includes interests in the trust made available by the responsible entity of the trust

Note: In the case of a company, interests which come within paragraph (i) of the definition of “notifiable interest of a director” should be disclosed in this part.

Direct or indirect interest	Indirect
Nature of indirect interest(including registered holder)Note: Provide details of the circumstances giving rise to the relevantinterest.	Emma Wentworth – 238,000 sharesCentral Park Nominees Pty Ltd atfCentral Park Trust – 100,000 shares
Date of change	Emma Wentworth – 4 June 2015Central Park Nominees Pty Ltd – 3 May2010 (50,000 shares), 30 November – 3December 2015 (50,000 shares)
No. of securities held prior to change	-
Class	Fully Paid Ordinary Shares
Number acquired	338,000
Number disposed	-
Value/ConsiderationNote: If consideration is non-cash, provide details and estimatedvaluation	$108,160
No. of securities held after change	338,000

• See chapter 19 for defined terms.

01/01/2011 Appendix 3Y Page 1

Appendix 3Y Change of Director’s Interest Notice

Nature of change Example: on-market trade, off-market trade, exercise of options, issue of securities under dividend reinvestment plan, participation in buy-back

Emma Wentworth – Off market trade Central Park Nominees Pty Ltd – Issue of Securities, On market trade

Part 2 – Change of director’s interests in contracts

Note: In the case of a company, interests which come within paragraph (ii) of the definition of “notifiable interest of a director” should be disclosed in this part.

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----- Start of picture text ----- Detail of contract NANature of interestName of registered holder(if issued securities)Date of changeNo. and class of securities to whichinterest related prior to changeNote: Details are only required for a contract inrelation to which the interest has changedInterest acquiredInterest disposedValue/ConsiderationNote: If consideration is non-cash, provide detailsand an estimated valuationInterest after change----- End of picture text -----

Part 3 –[+] Closed period

Were the interests in the securities or contracts detailed No above traded during a[+] closed period where prior written clearance was required? If so, was prior written clearance provided to allow the trade No to proceed during this period? If prior written clearance was provided, on what date was this No provided?

• See chapter 19 for defined terms.

Appendix 3Y Page 2

01/01/2011