| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Dongyue | China national standards | MT | 1836.44 | USD | 20251130 |
| Liaocheng Yuanze Chem | China national standards | MT | 1539.79 | USD | 20251129 |
| Shandong Yuxuan Chem | China national standards | MT | 1765.81 | USD | 20251129 |
| Shandong Dongyue | China national standards | MT | 1836.44 | USD | 20251128 |
| Liaocheng Yuanze Chem | China national standards | MT | 1539.79 | USD | 20251128 |
| Shandong Yuxuan Chem | China national standards | MT | 1765.81 | USD | 20251128 |
| Shandong Zhenkun | China national standards | MT | 1455.03 | USD | 20251128 |
| Shandong Hongyang Chem | China national standards | MT | 1907.08 | USD | 20251128 |
| Jinan Jinrihe Chem | China national standards | MT | 2825.3 | USD | 20251128 |
| Shandong Zhenkun | China national standards | MT | 1455.23 | USD | 20251127 |