| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Guoke | 85% | MT | 1131.77 | USD | 20251211 |
| Shanghai Guoke | 85% | MT | 1137.76 | USD | 20251210 |
| Shanghai Guoke | 85% | MT | 1130.37 | USD | 20251209 |
| Shanghai Guoke | 85% | MT | 1137.58 | USD | 20251208 |
| Shanghai Guoke | 85% | MT | 1130.76 | USD | 20251205 |
| Shanghai Guoke | 85% | MT | 1138.08 | USD | 20251204 |
| Shanghai Guoke | 85% | MT | USD | 20251203 | |
| Shanghai Guoke | 85% | MT | USD | 20251202 | |
| Shanghai Guoke | 85% | MT | USD | 20251201 | |
| Shanghai Guoke | 85% | MT | USD | 20251128 |