| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1041.01 | USD | 20250918 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 1083.21 | USD | 20250918 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 998.8 | USD | 20250918 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 998.8 | USD | 20250918 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 998.8 | USD | 20250918 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 998.8 | USD | 20250918 |
| Nanjing Runsheng Petrochemical Co., Ltd. | China national standards | MT | 1055.07 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 970.67 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 970.67 | USD | 20250918 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 998.8 | USD | 20250918 |