| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 325.09 | USD | 20251205 |
| China national standards | MT | 354.78 | USD | 20251205 | |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 353.36 | USD | 20251205 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.89 | USD | 20251205 |
| Changzhou Yihan Chemical Co., Ltd. | China national standards | MT | 395.77 | USD | 20251205 |
| China national standards | MT | 325.09 | USD | 20251205 | |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.89 | USD | 20251205 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 367.5 | USD | 20251205 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 353.36 | USD | 20251205 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.89 | USD | 20251205 |