| Vendor | Spec | Unit | Price | Currency | Date |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1227.43 | USD | 20251031 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1226.15 | USD | 20251022 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1226.56 | USD | 20251021 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1226.23 | USD | 20251017 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1225.9 | USD | 20251016 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1225.44 | USD | 20251015 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1224.99 | USD | 20251014 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1224.52 | USD | 20251011 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1203.29 | USD | 20250930 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1201.65 | USD | 20250928 |