| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 988.2 | USD | 20251109 |
| Shandong Jinmao | China national standards | MT | 1058.78 | USD | 20251109 |
| Shandong Jinling Chem | China national standards | MT | 1129.37 | USD | 20251109 |
| Dongying Huatai Chem | China national standards | MT | 1058.78 | USD | 20251109 |
| Shandong Jinling Chem | China national standards | MT | 1115.25 | USD | 20251108 |
| Shandong Laya Chem | China national standards | MT | 974.08 | USD | 20251108 |
| Dongying Huatai Chem | China national standards | MT | 1058.78 | USD | 20251108 |
| Shandong Jinmao | China national standards | MT | 1058.78 | USD | 20251108 |
| Shandong Qiangsen Chem | China national standards | MT | 1115.25 | USD | 20251108 |
| Shandong Jinling Chem | China national standards | MT | 1058.78 | USD | 20251108 |