LME Copper Cathodes 99. 9% Specs ( LME PRODUCT QUALITY ): Copper Cu : 99.97% Min. Silica Si : 0.3ppm Max. Cobalt Co : 0.2ppm Max. Bismuth Bi : 0.1ppm Max. Lead Pb : 0.2ppm Max. Tellurium Te : 0.05ppm Max. Iron Fe : 2ppm Max. Silver Ag : 10ppm Max. Aluminium Al : 0.5ppm Max. Selenium Se : 0.3ppm Max. Manganese Mn : O.1lppm Max. Sulphur S : 4ppm Max. Nickel Ni : 0.2ppm Max. Magnesium MG : 0.4ppm Max. Antimony Sb : O.1ppm Max. Oxygen 02 : 0 Arsenic AS : 0.1ppm Max.