| Vendor | Spec | Unit | Price | Currency | Date |
| China national standards | MT | 408.17 | USD | 20251012 | |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 401.14 | USD | 20251012 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 330.76 | USD | 20251012 |
| Hualu Holdings Group Co., Ltd. | China national standards | MT | 415.21 | USD | 20251012 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 351.87 | USD | 20251011 |
| China national standards | MT | 295.57 | USD | 20251011 | |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 365.95 | USD | 20251011 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 351.87 | USD | 20251011 |
| Chizhou Xinyu Chemical Technology Co., Ltd. | China national standards | MT | 408.17 | USD | 20251011 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 327.95 | USD | 20251011 |