Independent Planning Commission

Public Hearing for Chain Valley Colliery Consolidation Project

18 December 2025

The community will be able to have its say at a public hearing on the Chain Valley Colliery Consolidation Project, a State significant development application (SSD-17017460) by Great Southern Energy Pty Ltd to consolidate the existing development consents for Chain Valley Colliery and Mannering Colliery into one new development consent. The application also seeks approval for additional extraction in the Mannering Colliery mining area and an extension of an additional two years to 31 December 2029 to align with the planned operational period of the Vales Point Power Station.  

Chain Valley Colliery is located off Construction Rd, Vales Point NSW 2259 and Mannering Colliery is located off Ruttleys Road, Doyalson North, NSW 2262. 

The State significant development application has been referred to the Independent Planning Commission for decision because the Department of Planning, Housing and Infrastructure received at least 50 unique submissions objecting to the proposal. The Commission has been directed by the Minister for Planning and Public Spaces to hold a public hearing into the matter before making its determination.  

A panel of three Commissioners will be appointed by the Commission Chair to conduct the public hearing and determine the development application. 

The key issues identified in the Department’s whole-of-government assessment of the development application include subsidence, noise, air quality, and greenhouse gases. 

The Commission has access to all previous written submissions made to the Department on this proposed development, however it is particularly helpful for the Commission Panel to also hear the community’s views on the Department’s Assessment Report, which can be found on the Commission’s website. 

The public hearing for the Chain Valley Colliery Consolidation Project will be scheduled for Thursday 19 February 2026. This hearing will commence at 10:00am AEDT at Caves Coastal, located at 27 Mawson Cl, Caves Beach NSW 2281. Registered speakers will be able to present in person or via video- or tele-conferencing, and the hearing will be livestreamed.  

Anyone wishing to speak at the public hearing will need to pre-register on the Commission’s website. Speaker registrations will open on Monday 12 January 2026 at 10:00am AEDT and close on Thursday 5 February 2026 at 12:00noon AEDT. 

The Commission will also open for written submissions on Monday, 12 January 2026 at 10:00am AEDT. Submissions period will close on Thursday 26 February 2026 at 11:59pm AEDT.  

Please note 
The public hearing will be livestreamed on the Commission’s YouTube channel, accessible from the Commission website. Registered speakers will be asked to nominate their preference for presenting at the public hearing either in-person at the venue or by dialing in by telephone or Zoom. Please note that if the demand for either in-person or virtual attendance is low, the Commission may opt to conduct the hearing either entirely virtually or entirely in person.  Similarly, if demand for speaker timeslots is high and 19 February 2026 becomes fully booked, the Commission will endeavour to schedule a second day on 20 February 2026.  

If either of these scenarios occur, this will be fully communicated to all registered speakers in advance, including how the Commission can assist people to attend the hearing virtually.  These flexible arrangements ensure as many people as possible have the opportunity to be heard, while also making best use of public resources.            

The Office of the Independent Planning Commission will be closed from midday Wednesday 24 December 2025, reopening on Monday 12 January 2026.