Glofa’r Unity yng Nghwmgwrach ger Castell-nedd yw un o lofeydd drifft mwyaf Cymru. Mae’n lofa adnabyddus ac uchel ei pharch sy’n cynhyrchu glo o’r ansawdd uchaf ar gyfer y farchnad cynhyrchu metel.
Unity Mine based at Cwmgwrach near Neath is one of Wales' largest drift mine, a well-known and respected coal mining operation producing high quality coal targeted at the metallurgical coal market.