| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1057.85 | USD | 20250815 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 966.78 | USD | 20250815 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1092.88 | USD | 20250815 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1092.88 | USD | 20250815 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 855.1 | USD | 20250814 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1093.4 | USD | 20250814 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1093.4 | USD | 20250814 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1058.36 | USD | 20250814 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1086.39 | USD | 20250814 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1093.4 | USD | 20250814 |