| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 832.67 | USD | 20251118 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 832.67 | USD | 20251118 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 719.77 | USD | 20251118 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 712.71 | USD | 20251118 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 705.66 | USD | 20251118 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 705.66 | USD | 20251118 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 756.89 | USD | 20251117 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 833.15 | USD | 20251117 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 720.18 | USD | 20251117 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 706.06 | USD | 20251117 |