| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1050.66 | USD | 20250820 |
| Jiangsu Haixing Chemical Co., Ltd. | China national standards | MT | 1134.71 | USD | 20250820 |
| Dongying Liancheng Chemical Co., Ltd. | China national standards | MT | 1190.74 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.53 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.53 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1165.53 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1176.73 | USD | 20250820 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1162.73 | USD | 20250820 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1141.71 | USD | 20250820 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1141.71 | USD | 20250820 |