| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Shuntian Chem | China national standards | MT | 310.16 | USD | 20251021 |
| Shandong Shuntian Chem | China national standards | MT | 309.98 | USD | 20251020 |
| Shandong Shuntian Chem | China national standards | MT | 307.26 | USD | 20251017 |
| Shandong Shuntian Chem | China national standards | MT | 307.18 | USD | 20251016 |
| Shandong Shuntian Chem | China national standards | MT | 307.06 | USD | 20251015 |
| Shandong Shuntian Chem | China national standards | MT | 306.95 | USD | 20251014 |
| Shandong Shuntian Chem | China national standards | MT | 307.01 | USD | 20251013 |
| Shandong Shuntian Chem | China national standards | MT | 309.65 | USD | 20251011 |
| Shandong Shuntian Chem | China national standards | MT | 309.65 | USD | 20251010 |
| Shandong Shuntian Chem | China national standards | MT | 309.41 | USD | 20251009 |