| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Aochen Chem | China national standards | MT | 1554.46 | USD | 20251208 |
| Dongying Huatai Chem | China national standards | MT | 1116.39 | USD | 20251208 |
| Shandong Jinling Chem | China national standards | MT | 1102.26 | USD | 20251208 |
| Shandong Yihe Chem | China national standards | MT | 1081.06 | USD | 20251208 |
| Dongying Huatai Chem | China national standards | MT | 1102.26 | USD | 20251208 |
| Dongying Huatai Chem | China national standards | MT | 1102.49 | USD | 20251207 |
| Shandong Jinshenrun Chem | China national standards | MT | 1130.76 | USD | 20251207 |
| Shandong Yihe Chem | China national standards | MT | 1081.29 | USD | 20251207 |
| Dongying Huatai Chem | China national standards | MT | 1102.49 | USD | 20251207 |
| Shandong Jinshenrun Chem | China national standards | MT | 1102.49 | USD | 20251207 |