The cathode is the basic product of copper production. It is produced in a marketable form at Aurubis for use in high-quality applications. Home Products & Services Cathodes. A cathode a 50 to 80 kg copper square is produced when pure copper separates from unwrought copper in an electrolytic refining process cathode copper 99.99% with good quality Copper Cathode Grade A Purity: purity 99.99%-99.97% min Weight per Sheet:125kg copper cathode Grade A Cu 99.99 % 1.Weight of each sheet: 125kgs (+/- 1%) 2.Net weight of each pallet: 2mts (+/- 1%) 3.Min. weight in each container: 20mts approx. 4.Gross weight of each container: 22.20mts approx. Copper (Cu) min% 99.99%-99.97% min