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Aberpergwm settling ponds
Aberpergwm is the site of a colliery in the Vale of Neath near Glynneath in south Wales.
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The drift mine was reopened in 1996 after being closed by British Coal in 1985. It is owned by Energybuild, a private company now wholly owned by Walter Energy of the United States (as of April 2011). The mine has probable recoverable reserves of 7.6 million tonnes of coal, which is a high-grade anthracite. Most 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 but in July 2015 ceased production and was placed on a "care and maintenance" basis.
The ruined, derelict Aberpergwm House stands on the grounds, the former seat of the Williams family of Aberpergwm.