Our company can supply non cooking steam coal up to 50, 000 mt per month . Our coal mine field is at mukah, sarawak, east malaysia. Our current sampling & analysis result are as follows : gross calorific value ( adb ) - 5670 kecalkg gross calorific value ( arb )- 4456 kecalkg total moisture ( arb ) - 30.43 % inherrent mosture (adb ) - 11.48% volatile matter (adb ) - 42.49% ash ( adb ) - 7.22 % fixed carbon (adb ) - 38.81 % total sulfur (adb ) - 0.37 % hard grove grindability index - 39 coal size (0 -50 mm ) - 80.18%