| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 1800.66 | USD | 20250918 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1167.62 | USD | 20250918 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1125.41 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1463.04 | USD | 20250918 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 1800.66 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1464.23 | USD | 20250916 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1171.39 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1464.23 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1464.23 | USD | 20250916 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1464.23 | USD | 20250916 |