| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 854.83 | USD | 20250819 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1093.06 | USD | 20250819 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1093.06 | USD | 20250819 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1086.06 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1058.03 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 966.94 | USD | 20250819 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1086.62 | USD | 20250818 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1009.51 | USD | 20250818 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1009.51 | USD | 20250818 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1093.63 | USD | 20250818 |