| Date | Description |
| Feb 1999 |
Whitehaven Coal established |
| Sep 2000 - Jun 2006 |
Mining commences at Canyon, Werris Creek and Tarrawonga open cut mines |
| Oct 2006 |
Joint venture agreement for Tarrawonga open cut mine entered into, with Idemitsu having a 30% interest |
| Jun 2007 |
Whitehaven Coal ASX listing |
| Nov 2007 | Project approval for Stage 1 of the Narrabri Project |
| Nov 2007 |
Acquisition of remaining 60% interest in Werris Creek |
| Jan 2008 | Narrabri Project Mining Lease granted |
| Feb 2008 |
Sale of a 7.5% interest in the Narrabri Project to China's Yudean Group for $67.5 million |
| Aug 2008 |
Sale of a 7.5% interest in the Narrabri Project to Electric Power Development Co. Ltd (J Power) for $125 million and a 7.5% interest to EDF Trading for US$120 million. (Completed in December 2008) |
| Nov 2008 |
Mining commenced at Rocglen open cut mine |
| Dec 2008 |
Mining commenced at Sunnyside open cut mine |
| Aug 2009 |
Sale of a 7.5% interest in the Narrabri Project for A$125 million (plus 7.5% of all costs incurred since 1 January 2008) to a Korean consortium comprising Daewoo International Corporation (Daewoo) and Korea Resources Corporation (KORES). Sales completed in November 2009. |
| Sep 2009 |
Longwall purchase contract signed with Bucyrus for 300 metre longwall for Narrabri Stage 2 |
| Nov 2009 - Feb 2010 |
Acquisition of Maules Creek tenements CL375 and A346 from Coal & Allied for $480 million. |
| Feb 2010 |
Purchase of the Vickery Project from Coal & Allied |
| Jun 2010 |
Mining commenced at Stage 1 of Narrabri |
| Jul 2010 |
Project Approval for Stage 2 of Narrabri |
| Aug 2010 |
IPO for Aston Resources and ASX lisitng |
| Dec 2010 |
Boardwalk enters into Ferndale JV with Coalworks Limited |
| Dec 2010 |
Signed agreement for the sale of 15% of Maules Creek Project to ITOCHU Corporation for $345 million |
| Feb 2011 |
Lodgement of Maules Creek environmental application for Project Approval |
| May 2011 |
Heads of Agreement signed with Boggabri Coal Pty Ltd (wholly owned subsidiary of Idemitsu Australia) extending the tarrawonga Joint Venture |
| May 2011 |
Completion of sale of Maules Creek Project to ITOCHU and formation of Maules Creek Joint Venture |
| Jul 2011 |
Definitive feasability study for the Maules Creek Project completed |
| Sep 2011 |
Entered into conditional agreement for proposed sale of 10% stke in Maules Creek Coal Joint Venture to J-Power for $370 million along with proposed off-take agreement |
| Oct 2011 |
Approval received for Werris Creek mine extension |
| Dec 2011 |
Proposed merger between Aston and Whitehaven, and proposed acquisition of Boardwalk Resources announced. |
| Apr 2012 |
Merger approved by shareholders and Federal Court |
| May 2012 |
Merger of Whitehaven Coal, Aston Resources and Boardwalk Resources completed |
