Mining of the 91.2Mt Shoemaker-Levy deposit is already approved and scheduled for early 2019 once access via the corridor is provided. First Quantum has begun consultation with Main Roads WA because the proposed corridor will cross South Coast Highway. Documents released by the EPA yesterday also reveal First Quantum updated its mine closure plan with the Department of Mines and Petroleum in February. The plan included a commitment by First Quantum to formulate a care and maintenance process within three months in the event of "premature closure". BHP opened Ravensthorpe in late 2008. It fell into First Quantum's hands for $US340 million in 2010 after BHP retreated, having spent about $US3 billion building and commissioning the facility.