| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 972.82 | USD | 20251024 |
| Shandong Shuojia Chemical Co., Ltd. | China national standards | MT | 986.92 | USD | 20251024 |
| Shandong Haili Chemical Industry Co., Ltd. | China national standards | MT | 1198.4 | USD | 20251024 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 888.22 | USD | 20251024 |
| Yangmei Taihua Coking Investment Co., Ltd. | China national standards | MT | 958.72 | USD | 20251024 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1099.71 | USD | 20251024 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1409.88 | USD | 20251024 |
| Xinjiang Tianli Petrochemical Co., Ltd. | China national standards | MT | 1268.89 | USD | 20251024 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 972.82 | USD | 20251024 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 972.82 | USD | 20251024 |