Every year we need to improt nearly 20,000-40,000metric tons of spent vanadium catalyst from petro-chem industry (huge oil plants)as well as the boiler ash fly riched the vanadium,molybdenum,nickel from huge power station plants untilities in the world.If you could supply us the spend vanadium catalyst(v% more than 1.5%),we will take good use of them.