Twistdraai Coal Mine, South Africa Mining Technology
#0183;#32;The Twistdraai mine and washing plant is part of Minings Secunda Collieries complex. Lying in the Highveld coalfield, east of Johannesburg, the mine was opened in 1980 to produce coal for s Secunda synthesis plant, and since 1995 has been a threeshaft complex producing lowash steam coal for the export market as well as a middlings product for feed.