| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1056.43 | USD | 20250728 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1084.42 | USD | 20250728 |
| China Petroleum and Chemical Corporation Jingmen Branch | China national standards | MT | 1091.41 | USD | 20250728 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1091.41 | USD | 20250728 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1007.46 | USD | 20250728 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1091.41 | USD | 20250728 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 832.55 | USD | 20250728 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1085.15 | USD | 20250726 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 966.13 | USD | 20250726 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1092.15 | USD | 20250726 |