| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 971.42 | USD | 20250829 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 915.11 | USD | 20250829 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1171.34 | USD | 20250829 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1247.36 | USD | 20250829 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 971.42 | USD | 20250829 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 971.42 | USD | 20250829 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1098.13 | USD | 20250829 |
| Nanjing Baitu Chemicals Co., Ltd. | China national standards | MT | 1041.81 | USD | 20250829 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1097.62 | USD | 20250828 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 970.97 | USD | 20250828 |