| Vendor | Spec | Unit | Price | Currency | Date |
| Tangshan Sanyou Chemical Industries Co., Ltd. | China national standards | MT | 183.52 | USD | 20251107 |
| Tangshan Sanyou Chemical Industries Co., Ltd. | China national standards | MT | 183.45 | USD | 20251106 |
| Tangshan Sanyou Chemical Industries Co., Ltd. | China national standards | MT | 183.35 | USD | 20251105 |
| Tangshan Sanyou Chemical Industries Co., Ltd. | China national standards | MT | 183.4 | USD | 20251104 |
| Tangshan Sanyou Chemical Industries Co., Ltd. | China national standards | MT | 183.44 | USD | 20251103 |
| Tangshan Sanyou Chemical Industries Co., Ltd. | China national standards | MT | 183.45 | USD | 20251030 |
| Tangshan Sanyou Chemical Industries Co., Ltd. | China national standards | MT | 183.47 | USD | 20251028 |
| Tangshan Sanyou Chemical Industries Co., Ltd. | China national standards | MT | 183.41 | USD | 20251027 |
| Tangshan Sanyou Chemical Industries Co., Ltd. | China national standards | MT | 183.28 | USD | 20251024 |
| Tangshan Sanyou Chemical Industries Co., Ltd. | China national standards | MT | 183.31 | USD | 20251023 |