BLACK ROCK MINING LIMITED — Director's Dealing 2008

Apr 13, 2008

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 30/9/2001.

Name of entity: GREEN ROCK ENERGY LIMITED ABN: 59 094 551 336

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	ALAN KNIGHTS
Date of last notice	28 March 2008

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	Direct
Nature of indirect interest(including registered holder)Note: Provide details of the circumstances giving rise tothe relevant interest.	N/A
Date of change	14 April 2008
No. of securities held prior to change	Ordinary shares: 2,518,232Listed options exercisable at 10 cents expiring18 April 2008: 771,993Unlisted options exercisable at 25 centsexpiring 21 November 2009: 2,000,000Unlisted options exercisable at 15 centsexpiring26 November 2011: 750,000
Class	Ordinary fully paid
Number acquired	771,993 shares
Number disposed	Nil
Value/ConsiderationNote: If consideration is non-cash, provide details andestimated valuation	$77,199.30

• See chapter 19 for defined terms.

11/3/2002

Appendix 3Y Page 1

Appendix 3Y Change of Director’s Interest Notice

No. of securities held after change	Ordinary shares: 3,290,225
	Unlisted options: exercisable at 25 centsexpiring 21 November 2009: 2,000,000Unlisted options exercisable at 15 centsexpiring 26 November 2011: 750,000
Nature of changeExample: on-market trade, off-market trade, exercise ofoptions, issue of securities under dividend reinvestmentplan, participation in buy-back	Exercise of 771,993 options ( GRKOA18 April 2008 options) to acquire ordinaryshares.

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.

Detail of contract	N/A
Nature of interest	N/A
Name of registered holder(if issued securities)	N/A
Date of change	N/A
No. and class of securities towhich interest related prior tochangeNote: Details are only required for a contract in relationto which the interest has changed	N/A
Interest acquired	N/A
Interest disposed	N/A
Value/ConsiderationNote: If consideration is non-cash, provide details and anestimated valuation	N/A
Interest after change	N/A

• See chapter 19 for defined terms. Appendix 3Y Page 2

11/3/2002