Moranbah North Re-Entry Maybe. Grosvenor Mining Inquiry 5 Miners Critical Burns Methane Explosion, Grosvenor Heating Explosion and Fire, North Goonyella Heating Explosion and Closure. All in 2 and a half years.

While we await an actual statement from Anglo on their proposed Re-Entry I wish them all the luck in the world.

The recent history in Queensland suggests you will need it.

While you are leaving an open goaf subject to full mine ventilation pressures likely all your efforts at Inertisation are likely just disappearing out the tailgate roadway.

Inertisation only works on a sealed goaf.

It has not worked any where in Queensland let alone the world any other way.

There is an old saying

You reap what you sow.

Breaking the first rules of ventilating a gassy spontaneous combustion prone mine.

Not running the mine and longwall at as low a pressure as possible.

Keeping Main Fans at the original shaft from when the Mine first hit coal.

In Grosvenor’s case it seems one main return to the fan shaft for 11 pillars.

5 km Longwall blocks driven on 2 heading development.

Using intake shafts at the back of the longwall block and ventilating past kilometres of goaf and goaf seals.

Not draining enough gas before they develop the longwall blocks.

Relying totally on methane drainage boreholes to keep the LW tailgate and roadway below 1.25% and 2.5%.