| Vendor | Spec | Unit | Price | Currency | Date |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.72 | USD | 20251129 |
| Hebei Pengfa Chemcal Co., Ltd. | China national standards | MT | 329.15 | USD | 20251129 |
| Henan Longyu Coal Chemical Co., Ltd. | China national standards | MT | 303.72 | USD | 20251129 |
| China national standards | MT | 296.66 | USD | 20251129 | |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 402.6 | USD | 20251129 |
| Hualu Holdings Group Co., Ltd. | China national standards | MT | 416.73 | USD | 20251129 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 324.91 | USD | 20251129 |
| China national standards | MT | 409.67 | USD | 20251129 | |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 324.91 | USD | 20251129 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 324.91 | USD | 20251129 |