The drift mine was reopened in 1996 by local investors Anthracite Mining Ltd, with the mine estimated to have recoverable reserves of 7.6 million tonnes of high-grade
anthracite. Bought out by UK-based
Energybuild, in 2011 Energybuild was bought by
Walter Energy of the United States. At this time, most of the coal was delivered to
Port Talbot Steelworks owned by
Tata Steel. The colliery suspended working the multi-entry system in the 18 ft seam and concentrated on the development of the 9 ft. In July 2015, after the
bankruptcy filing by Walter Energy, the mine ceased production and was placed on a "care and maintenance" basis. After three years of closure, in 2018 Energybuild was bought from the administrators by another group of UK investors. Today Aberpergwm is the only producer of high-grade anthracite in Western Europe, creating a high-carbon coal which creates a clean burn with low emissions, low sulphur, and high efficiency. Although some product is still transported to Port Talbot Steelworks, now most of the output is finely crushed to produce a carbon product suitable for use in
carbon filtering. ==Other==