| Vendor | Spec | Unit | Price | Currency | Date |
| China national standards | MT | 346.37 | USD | 20251204 | |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 395.85 | USD | 20251204 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.96 | USD | 20251204 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 353.44 | USD | 20251204 |
| China national standards | MT | 354.86 | USD | 20251204 | |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.96 | USD | 20251204 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 346.37 | USD | 20251204 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 395.85 | USD | 20251204 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.96 | USD | 20251204 |
| Yankuang Guotai Chemical Co., Ltd. | China national standards | MT | 353.44 | USD | 20251204 |