| Vendor | Spec | Unit | Price | Currency | Date |
| 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 |
| Shandong Shuntian Chem | China national standards | MT | 332.05 | USD | 20251209 |
| Shandong Shuntian Chem | China national standards | MT | 332.09 | USD | 20251208 |
| Shandong Shuntian Chem | China national standards | MT | 332.16 | USD | 20251205 |
| Shandong Shuntian Chem | China national standards | MT | 339.3 | USD | 20251204 |
| Shandong Shuntian Chem | China national standards | MT | 346.27 | USD | 20251203 |