Coal Products Limited at Cwm Coking Works, Llantwit Fardre, Pontypridd, Rhondda Cynon Taf, and sold as “Sunbrite”;

Monckton Coke & Chemical Company Limited at Royston, near Barnsley, South Yorkshire, and sold as “Sunbrite” or “Monckton Boiler Beans”;

Corus UK Limited at Teesside Works, Redcar & Cleveland, and sold as “Redcar Coke Nuts (Doubles)”; and

Coal Products Limited at Cwm Coking Works, Llantwit Fardre, Pontypridd, Rhondda Cynon Taf, and sold as “Cwm Coke Doubles”.