SENSEN NETWORKS LIMITED — M&A Activity 2012

Jun 14, 2012

15 June 2012

Takeover Offer Update

Coalworks Limited (“Coalworks“) refers to the Bidder’s Statement by Whitehaven Coal Holdings Pty Ltd (the Bidder) dated 10 May 2012. The Board of Coalworks is pleased to advise that, after discussions with many of Coalworks’ shareholders, it has reached an agreement with the Bidder that, based on:

1. An in specie distribution of the securities held by Coalworks in Orpheus Energy Limited (ASX:OEG) being permitted by the Bidder pari passu to all Coalworks shareholders. Based on today’s market value of OEG at A$0.115 per share, this represents an additional value of approximately A$0.025 per Coalworks share; and

2. The Bidder declaring its takeover offer for Coalworks free from all conditions,

the Board of Coalworks will recommend to shareholders the offer by the Bidder should be accepted by shareholders of the Company. The Board believes the higher value achieved and the removal of all conditions by the Bidder represents sufficient value and certainty for Coalworks shareholders to accept the Offer. The Company has also received confirmation from its Chairman, CEO, senior management and several shareholders, holding approximately 15 per cent of shares on issue in the Company, that the revised bid terms are acceptable to them and that they intend accepting the revised bid.

A supplementary Bidder’s Statement and supplementary Target’s Statement to this effect should be available shortly.

Coalworks is operating an information line for shareholders relating to the offer:

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Shareholder Information Line:

Toll free: 1800 705 748 (in Australia) or +61 2 8256 3386 (overseas)

Contacts: Wayne Mitchell David Smith Todd Barlow Independent Chairman, Head of Commercial and Pitt Capital Partners Coalworks Limited Development, Coalworks Limited +61 2 9210 7000 +61 2 9922 1344 +61 2 9922 1344 tbarlow@pcap.com.au wmitchell@coalworks.com.au dsmith@coalworks.com.au

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Media:

Dudley White / Garry Nickson MAGNUS Investor Relations + Corporate Communication +61 2 8999 1010 dwhite@magnus.net.au / gnickson@magnus.net.au

Cautionary Note:

This release may contain forward-looking statements that are based upon management’s expectations and beliefs in regards to future events. These statements are subjected to risk and uncertainties that might be out of control of Coalworks Limited and may cause actual results to differ from the release. Coalworks Limited takes no responsibility to make changes to these statements to reflect change of events or circumstances after the release.

Coalworks has a portfolio of projects in Australia including:

1. Vickery South, Gunnedah Basin (exploration target coking/thermal coal) # JORC Resources Increase by 15% to 58.5 Mt - see ASX Announcement 18.07.2011 # ITOCHU to proceed with BFS for Vickery South - see ASX Announcement 18.05.2011 # ITOCHU signs Farm In Agreement in $11m deal - see ASX announcement 04.05.2010

• # Preliminary Feasibility Study – positive with semi soft coking coal forming 83% of product - see ASX announcement 15.06.2011

2. Ferndale Coal Project

• # Coalworks includes its 92.5% owned subsidiary Loyal Coal Pty Ltd

• # JORC Inferred Resource 743 Mt: 443 Mt Open Cut Inferred and 300 Mt Underground Inferred Resource #Boardwalk Resources signed Farm-In and Joint Venture Agreements in $25m deal - see ASX announcement 09.12.2010

3. Oaklands Coal Project (JORC measured, indicated and inferred 822Mt thermal coal) #see ASX announcement 5.11. 2009; #Strategic Alliance with Synthesis Energy Systems Inc to develop Oaklands coal-to-petrol plant announced – see ASX announcement 2.12.2009

ASX Release Page 2