| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 844.32 | USD | 20250828 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1013.19 | USD | 20250828 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1013.19 | USD | 20250828 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1097.62 | USD | 20250828 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1097.62 | USD | 20250828 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 802.11 | USD | 20250828 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1090.58 | USD | 20250828 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1062.44 | USD | 20250828 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 970.97 | USD | 20250828 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1097.62 | USD | 20250828 |