| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 806.0 | USD | 20251016 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1112.75 | USD | 20251015 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1091.63 | USD | 20251015 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1098.67 | USD | 20251015 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1253.61 | USD | 20251015 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 845.13 | USD | 20251015 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1014.16 | USD | 20251015 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1098.67 | USD | 20251015 |
| Xingtai Risun Coal Chemicais Limited | China national standards | MT | 1281.78 | USD | 20251015 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1070.5 | USD | 20251015 |