| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinling | China national standards | MT | 252.59 | USD | 20260130 |
| Dongying Huatai Chem | China national standards | MT | 252.59 | USD | 20260130 |
| Shandong Luxi Chem | China national standards | MT | 259.48 | USD | 20260128 |
| Dongying Huatai Chem | China national standards | MT | 247.7 | USD | 20260126 |
| Shandong Luxi Chem | China national standards | MT | 248.29 | USD | 20260116 |
| Dongying Huatai Chem | China national standards | MT | 242.59 | USD | 20260116 |
| Shandong Dongyue | China national standards | MT | 248.29 | USD | 20260116 |
| Dongying Huatai Chem | China national standards | MT | 237.9 | USD | 20260109 |
| Dongying Huatai Chem | China national standards | MT | 237.9 | USD | 20260109 |
| Dongying Huatai Chem | China national standards | MT | 237.9 | USD | 20260109 |