| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 801.81 | USD | 20250929 |
| SINOPEC Qingdao Petrochemical Co., Ltd. | China national standards | MT | 1090.18 | USD | 20250929 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 1069.08 | USD | 20250929 |
| Shandong Chambroad Petrochemicals Co., Ltd. | China national standards | MT | 829.95 | USD | 20250929 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 829.95 | USD | 20250929 |
| Huizhou Jincheng Petrochemical Equipment Engineering Co., Ltd. | China national standards | MT | 1097.22 | USD | 20250929 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 829.95 | USD | 20250929 |
| Shandong Dongming Petroche Mical Group Co., Ltd. | China national standards | MT | 886.21 | USD | 20250929 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.28 | USD | 20250929 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1111.28 | USD | 20250929 |