| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 974.08 | USD | 20251107 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1065.84 | USD | 20251107 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1094.08 | USD | 20251107 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1072.9 | USD | 20251107 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1072.9 | USD | 20251107 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1101.14 | USD | 20251107 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1101.14 | USD | 20251107 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 1072.9 | USD | 20251107 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1101.14 | USD | 20251107 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1129.37 | USD | 20251107 |