| Vendor | Spec | Unit | Price | Currency | Date |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1068.14 | USD | 20250928 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1110.3 | USD | 20250928 |
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 983.81 | USD | 20250928 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 829.21 | USD | 20250928 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 829.21 | USD | 20250928 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 885.43 | USD | 20250928 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1110.3 | USD | 20250928 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 837.64 | USD | 20250928 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1011.92 | USD | 20250928 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1096.24 | USD | 20250928 |