We are manufacturing specially Starch Grade Chemically Activated Carbon. we are using best quality imported pine wood, phosphoric acid to product activated carbon thatswhy we can provide 99% kmno4 value in our product. it can give you maximum decolurisation power. we sure once you try our product & you will be our reputed customer. I know our product will prove our company's reputation. kizashi - "a symbol of purity"