| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 367.37 | USD | 20251209 |
| Jiangsu SOPO Chemical Co., Ltd. | China national standards | MT | 353.24 | USD | 20251209 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 398.46 | USD | 20251209 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 367.37 | USD | 20251209 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.79 | USD | 20251209 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 353.24 | USD | 20251209 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 367.37 | USD | 20251209 |
| China national standards | MT | 296.72 | USD | 20251209 | |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 316.5 | USD | 20251209 |
| Hualu Holdings Group Co., Ltd. | China national standards | MT | 416.83 | USD | 20251209 |