| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 353.68 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 325.38 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 367.82 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 325.38 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 381.97 | USD | 20251211 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 367.48 | USD | 20251210 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 325.07 | USD | 20251210 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 381.61 | USD | 20251210 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 367.37 | USD | 20251209 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 353.24 | USD | 20251209 |