| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1051.23 | USD | 20250807 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 812.95 | USD | 20250807 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 784.21 | USD | 20250806 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1050.29 | USD | 20250806 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1134.31 | USD | 20250806 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 812.22 | USD | 20250806 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 980.27 | USD | 20250806 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 882.24 | USD | 20250806 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 875.24 | USD | 20250806 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 812.22 | USD | 20250806 |