Glencore currently operate a complex of coal mines around Mount Owen in the Hunter Valley. The Glendell open cut mine, about 20km northwest of Singleton, is part of this complex, and has been in operation since 2008.
The Glendell expansion project would involve Glencore continuing mining for an additional 21 years to 2044, extracting a further 135 million tonnes of coal destined to be burnt for power and to make steel.