| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 970.97 | USD | 20250828 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 914.68 | USD | 20250828 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1246.78 | USD | 20250828 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1170.79 | USD | 20250828 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1097.62 | USD | 20250828 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 970.97 | USD | 20250828 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 970.97 | USD | 20250828 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 970.35 | USD | 20250827 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 970.35 | USD | 20250827 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1096.92 | USD | 20250827 |