hello sir
we are trading company from Busan Korea, we can supply different kind of materals , like copper sludge, Nickel sludge, molybdenium sludg, zinc ash, lead slag, etc.
we can supply copper sludge 200ton per month,  
CU:15% Moisture:0
loading port:Busan korea
payment: tt 50% advance, 50% against BL.
price:
regards
edwards
skype:edwards6631