| Vendor | Spec | Unit | Price | Currency | Date |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1201.65 | USD | 20250926 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1203.26 | USD | 20250925 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1203.26 | USD | 20250924 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1203.26 | USD | 20250923 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1224.37 | USD | 20250923 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1202.43 | USD | 20250922 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1202.06 | USD | 20250920 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1202.06 | USD | 20250919 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1223.89 | USD | 20250918 |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 1202.79 | USD | 20250918 |