| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 330.43 | USD | 20251117 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.57 | USD | 20251116 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 395.34 | USD | 20251116 |
| China national standards | MT | 395.34 | USD | 20251116 | |
| China national standards | MT | 296.51 | USD | 20251116 | |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 330.39 | USD | 20251116 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 423.58 | USD | 20251116 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.57 | USD | 20251116 |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 423.58 | USD | 20251116 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 328.98 | USD | 20251116 |