| Vendor | Spec | Unit | Price | Currency | Date |
| Shijiazhuang Baipo Chem | China national standards | MT | 349.07 | USD | 20251201 |
| Nantong Zhonghe Chem | China national standards | MT | 390.06 | USD | 20251201 |
| Shandong Yuxuan Chem | China national standards | MT | 353.16 | USD | 20251129 |
| Shandong Hualu | China national standards | MT | 378.59 | USD | 20251128 |
| Shandong Yuxuan Chem | China national standards | MT | 353.16 | USD | 20251128 |
| Shandong Yuxuan Chem | China national standards | MT | 353.16 | USD | 20251128 |
| Shandong Shuntian Chem | China national standards | MT | 346.1 | USD | 20251128 |
| Shijiazhuang Baipo Chem | China national standards | MT | 348.92 | USD | 20251128 |
| Nantong Zhonghe Chem | China national standards | MT | 389.89 | USD | 20251128 |
| Shandong Hualu | China national standards | MT | 322.08 | USD | 20251128 |