| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1167.11 | USD | 20250821 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1094.17 | USD | 20250821 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 967.92 | USD | 20250821 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 967.92 | USD | 20250821 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 966.6 | USD | 20250820 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 966.6 | USD | 20250820 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 910.57 | USD | 20250820 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1036.65 | USD | 20250820 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 966.6 | USD | 20250820 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 966.6 | USD | 20250820 |