Appin Mine is owned and operated by Endeavour Coal Pty Ltd, a subsidiary company of Illawarra Coal Holdings Pty Ltd (ICHPL), which is wholly owned by Gear M Illawarra Met Coal Pty Ltd, trading as GM3.
ICHPL was sold to Gear M Illawarra Met Coal Pty Ltd, trading as GM3, an entity owned by Golden Energy and Resources Pte Ltd (GEAR) and M Resources Pty Ltd. The transaction was completed on 29 August 2024.
GEAR and M Resources hold shares in GEAR M Illawarra Met Coal Pty Ltd of 70% and 30% respectively.

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