Copper
| Product | Copper (Cu) Purity | Basis for Purity Measurement |
| Copper Ingots | 99.999989% | Based on sum of metallic impurities |
| Copper Powder | 99.9998% | Not specified (assumed total purity) |
World Management International
| Product | Copper (Cu) Purity | Basis for Purity Measurement |
| Copper Ingots | 99.999989% | Based on sum of metallic impurities |
| Copper Powder | 99.9998% | Not specified (assumed total purity) |