| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuntian Chem | China national standards | MT | 297.18 | USD | 20260310 |
| Shandong Shuntian Chem | China national standards | MT | 287.67 | USD | 20260209 |
| Shandong Shuntian Chem | China national standards | MT | 294.58 | USD | 20260206 |
| Shandong Shuntian Chem | China national standards | MT | 308.49 | USD | 20260202 |
| Shandong Shuntian Chem | China national standards | MT | 314.99 | USD | 20260126 |
| Shandong Shuntian Chem | China national standards | MT | 320.11 | USD | 20260104 |
| Shandong Shuntian Chem | China national standards | MT | 320.11 | USD | 20260104 |
| Shandong Shuntian Chem | China national standards | MT | 326.74 | USD | 20251225 |
| Shandong Shuntian Chem | China national standards | MT | 339.53 | USD | 20251211 |
| Shandong Shuntian Chem | China national standards | MT | 339.21 | USD | 20251210 |