| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 970.61 | USD | 20250929 |
| China Petroleum and Chemical Co., Ltd., QILU Branch | China national standards | MT | 1223.82 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1294.15 | USD | 20250929 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1329.32 | USD | 20250929 |
| Shandong Yuhuang Chemical Co., Ltd. | China national standards | MT | 1287.12 | USD | 20250929 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1195.68 | USD | 20250929 |
| Nanjing Runsheng Petrochemical Co., Ltd. | China national standards | MT | 984.68 | USD | 20250929 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 970.61 | USD | 20250929 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1294.15 | USD | 20250929 |
| Beijing Yanshan Petrol-Chemical Industry Co., Ltd. | China national standards | MT | 1216.78 | USD | 20250929 |