| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 865.5 | USD | 20250924 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 736.03 | USD | 20250924 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 689.59 | USD | 20250924 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 675.51 | USD | 20250924 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 731.81 | USD | 20250924 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 830.32 | USD | 20250924 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 865.5 | USD | 20250923 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 675.51 | USD | 20250923 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 750.1 | USD | 20250923 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 689.59 | USD | 20250923 |