| Vendor | Spec | Unit | Price | Currency | Date |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1095.36 | USD | 20251210 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1102.43 | USD | 20251210 |
| Derun Chemical Co., Ltd. | China national standards | MT | 932.82 | USD | 20251210 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1102.43 | USD | 20251210 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.82 | USD | 20251210 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1102.43 | USD | 20251210 |
| China Petroleum and Chemical Corporation Tianjin Branch | China national standards | MT | 848.02 | USD | 20251210 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 787.25 | USD | 20251210 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1074.16 | USD | 20251210 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1017.62 | USD | 20251210 |