| Vendor | Spec | Unit | Price | Currency | Date |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1271.38 | USD | 20251129 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1175.32 | USD | 20251129 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1151.31 | USD | 20251129 |
| Jinan Jiaxing Chemical Co., Ltd. | China national standards | MT | 1130.12 | USD | 20251129 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1144.25 | USD | 20251129 |
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 1822.32 | USD | 20251129 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 847.59 | USD | 20251129 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1059.49 | USD | 20251129 |
| Shandong Haili Chemical Industry Co., Ltd. | China national standards | MT | 1695.18 | USD | 20251129 |
| Dongying Liancheng Chemical Co., Ltd. | China national standards | MT | 1200.75 | USD | 20251129 |