We deal with Copper Cathodes worldwide. Please call or email us your inquiries. Reebum Alliance is a established here in Singapore with ready stocks for Copper Cathodes samples for immediate delivery. Reebum Alliance is able to sell these in any size you want for your SGS or other labs testing. If you're serious about getting copper cathodes from us, test our copper cathodes and once verified, we can proceed with larger orders. <br/>