| Vendor | Spec | Unit | Price | Currency | Date |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 367.48 | USD | 20251210 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 346.28 | USD | 20251210 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 395.74 | USD | 20251210 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.87 | USD | 20251210 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 367.48 | USD | 20251210 |
| China national standards | MT | 367.48 | USD | 20251210 | |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.87 | USD | 20251210 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 367.48 | USD | 20251210 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.87 | USD | 20251210 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 329.31 | USD | 20251210 |