| Vendor | Spec | Unit | Price | Currency | Date |
| Dongying Huatai Chem | China national standards | MT | 234.88 | USD | 20260213 |
| Shandong Dongyue | China national standards | MT | 239.2 | USD | 20260213 |
| Dongying Huatai Chem | China national standards | MT | 231.86 | USD | 20260211 |
| Shandong Dongyue | China national standards | MT | 236.18 | USD | 20260211 |
| Dongying Huatai Chem | China national standards | MT | 243.31 | USD | 20260210 |
| Shandong Dongyue | China national standards | MT | 246.19 | USD | 20260210 |
| Shandong Luxi Chem | China national standards | MT | 275.98 | USD | 20260205 |
| Shandong Luxi Chem | China national standards | MT | 271.52 | USD | 20260203 |
| Shandong Jinling | China national standards | MT | 255.4 | USD | 20260202 |
| Shandong Dongyue | China national standards | MT | 254.03 | USD | 20260130 |