| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1170.05 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1245.99 | USD | 20250827 |
| 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 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1040.67 | USD | 20250827 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 969.26 | USD | 20250826 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1095.69 | USD | 20250826 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 969.26 | USD | 20250826 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 969.26 | USD | 20250826 |