| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.4 | USD | 20250804 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1085.51 | USD | 20250804 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1057.5 | USD | 20250804 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 966.45 | USD | 20250804 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1092.51 | USD | 20250804 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1092.51 | USD | 20250804 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1083.98 | USD | 20250801 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 839.21 | USD | 20250801 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1090.97 | USD | 20250801 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1090.97 | USD | 20250801 |