TRANCE OCEAN TRADING COMPANY deals in mineral salt from Khewra salt mines situated at the foothills of the Salt Range. Khewra Salt Mines are the oldest in the salt mining history of the sub-continent. Salt occurs in the form of an irregular dome like structure. There are seven thick salt seams with cumulative thickness of about 150 meters. At places rock salt is 99% pure. Salt is transparent, white, pink, reddish to beef-color red. In certain horizons it is crystalline. Inside the mine there are beautiful alternate bands of red and white color salt. There are 18 working levels. Cumulative length of all diverges is more than 40 kmKhewra salt MinesKhewra, Distt. JhelumLocation 160km south of IslamabadLeased area 3, 398.53 acresGeological Horizon Pre-CambrianCommercial salt Average 96%Shades of salt White, Pink and RedMining method Room and PillarRock Salt Resources 6.687 Billion TonsProduction 318, 000 tons annually