Used cooking oil : we are one of the leading exporters of uco. Ffa: 5% max, miu: 1% max, iodine value: 90-100, sulphur content: 30-40. We can produce different specification. This standard is just for your reference. Our uco passed the iscc certificate; we also accept any partyâ??s inspection. Our uco is collected from hotels, restaurant etc. It can be used for producing biodiesel. Itâ??s environmental friendly energy. Itâ??s a new source of energy and has great significance to energy conservation and emissions of co2 reduction.