| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 986.55 | USD | 20251022 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1409.36 | USD | 20251022 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 958.37 | USD | 20251022 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 887.9 | USD | 20251022 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1099.3 | USD | 20251022 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 887.9 | USD | 20251022 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1099.3 | USD | 20251022 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1338.9 | USD | 20251022 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 986.55 | USD | 20251022 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 930.18 | USD | 20251022 |