We are jilin jien nickel co,.ltd , we located in north of China .We are the end user of Vanadium spent catalyst/slag/residue/ash, and we are so interested in buyer large quantity of these materails constantly, please do not hesitate to contact us if you are in such position,we will cooperate with you with a good price! Thanks J.k Zhang skype: dalian.bolong Tel:0086-13941149377 Show More