| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 760.91 | USD | 20251107 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 728.44 | USD | 20251107 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 712.91 | USD | 20251107 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 910.55 | USD | 20251107 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 734.09 | USD | 20251107 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 832.91 | USD | 20251107 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 712.62 | USD | 20251106 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 705.57 | USD | 20251106 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 677.34 | USD | 20251106 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 832.57 | USD | 20251106 |