| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 712.62 | USD | 20251113 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 722.5 | USD | 20251113 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 832.57 | USD | 20251113 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 727.06 | USD | 20251112 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 910.59 | USD | 20251112 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 832.95 | USD | 20251112 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 712.94 | USD | 20251112 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 760.59 | USD | 20251111 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 733.78 | USD | 20251111 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 733.78 | USD | 20251111 |