| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 353.13 | USD | 20251126 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 381.38 | USD | 20251126 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 352.98 | USD | 20251125 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 324.74 | USD | 20251125 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 344.51 | USD | 20251125 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 381.22 | USD | 20251125 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 344.4 | USD | 20251124 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 381.1 | USD | 20251124 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 352.87 | USD | 20251124 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 324.64 | USD | 20251124 |