Bio-diesel supplied to Oil Marketing Companies for blending with High Speed Diesel: 2.5: 2.5: 5 : 4001: Natural rubber, balata, gutta-percha, guayule, chicle and similar natural gums, in primary forms or in plates, sheets or strip: 2.5: 2.5: 5 : 4004 00 00: Waste, parings or scrap of rubber (other than hard rubber) 2.5: 2.5: 5 : 4011 30 00