​Ravensworth Underground Mine (RUM) is situated in the Hunter Valley coalfields of NSW, approximately 25 kilometres northwest of Singleton.

RUM has been managed by Glencore since February 2008 and is a joint venture between Resource Pacific Pty Ltd (owned by Glencore and Marubeni) and Posco (a Korean steel manufacturer).

As the majority shareholder of Resource Pacific P/L, Glencore oversees management of RUM.

The mine has been developed for longwall mining to extract a large, semi-soft coking coal reserve, which is blended with hard coking coal and used in steel production or used for power generation.

Coal production at RUM was suspended in September 2014 due to a combination of lower prices, high production costs at the mine, a strong Australian dollar and geological constraints in future mining areas.