| Vendor | Spec | Unit | Price | Currency | Date |
| Qilu Petrochemical Construction Co., Ltd. | China national standards | MT | 727.51 | USD | 20251129 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 932.35 | USD | 20251129 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251129 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1101.87 | USD | 20251129 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 889.97 | USD | 20251129 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1101.87 | USD | 20251129 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.35 | USD | 20251129 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1101.87 | USD | 20251129 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 932.35 | USD | 20251129 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 734.58 | USD | 20251129 |