| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 733.79 | USD | 20251106 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 712.26 | USD | 20251105 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 909.72 | USD | 20251105 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 730.6 | USD | 20251105 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 733.42 | USD | 20251105 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 832.15 | USD | 20251105 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 705.37 | USD | 20251104 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 763.21 | USD | 20251104 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 909.92 | USD | 20251104 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 733.58 | USD | 20251104 |