| Vendor | Spec | Unit | Price | Currency | Date |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 330.56 | USD | 20251130 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 324.91 | USD | 20251130 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 381.42 | USD | 20251130 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 324.91 | USD | 20251130 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.72 | USD | 20251130 |
| China national standards | MT | 296.66 | USD | 20251130 | |
| Shanghai Huayi Holding Group Co., Ltd. | China national standards | MT | 423.79 | USD | 20251130 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.72 | USD | 20251130 |
| China national standards | MT | 324.91 | USD | 20251129 | |
| China national standards | MT | 395.54 | USD | 20251129 |