| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 801.37 | USD | 20250919 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1096.61 | USD | 20250919 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1124.73 | USD | 20250919 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1069.14 | USD | 20250918 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1012.87 | USD | 20250918 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1069.14 | USD | 20250918 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1097.28 | USD | 20250918 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1097.28 | USD | 20250918 |
| Shandong Changyi Petrochemical Co., Ltd. | China national standards | MT | 851.09 | USD | 20250918 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 829.99 | USD | 20250918 |