Here the raw materials received at the purchase department is first categorised into different categories like (VNM PD, BT PD, HLSO BT, HL VNM) etc, then undergoes different process such as product grading like (21/25,30/40, U/40 etc) and packaging like( 6 X 1.8 Kg, 10 X 2 LBS, 10X 2 Kg etc).