| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 731.9 | USD | 20251010 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 703.75 | USD | 20251010 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 830.42 | USD | 20251010 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 738.38 | USD | 20251009 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 689.15 | USD | 20251009 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 703.22 | USD | 20251009 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 731.34 | USD | 20251009 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 829.79 | USD | 20251009 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 829.79 | USD | 20251009 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 689.61 | USD | 20251008 |