| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.61 | USD | 20251010 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 302.61 | USD | 20251010 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 337.8 | USD | 20251010 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 330.76 | USD | 20251010 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 329.35 | USD | 20251010 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 386.77 | USD | 20251009 |
| Tianjin Shengtongtai Chemical Co., Ltd. | China national standards | MT | 351.61 | USD | 20251009 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.67 | USD | 20251009 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 407.86 | USD | 20251009 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 327.7 | USD | 20251009 |