| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1191.32 | USD | 20251021 |
| Shandong Hongyang Chem | China national standards | MT | 1190.59 | USD | 20251020 |
| Shandong Hongyang Chem | China national standards | MT | 1190.59 | USD | 20251020 |
| Shandong Hongyang Chem | China national standards | MT | 1191.0 | USD | 20251017 |
| Shandong Hongyang Chem | China national standards | MT | 1191.0 | USD | 20251017 |
| Shandong Hongyang Chem | China national standards | MT | 1190.68 | USD | 20251016 |
| Shandong Hongyang Chem | China national standards | MT | 1190.68 | USD | 20251016 |
| Shandong Hongyang Chem | China national standards | MT | 1190.22 | USD | 20251015 |
| Shandong Hongyang Chem | China national standards | MT | 1190.22 | USD | 20251015 |
| Shandong Hongyang Chem | China national standards | MT | 1189.79 | USD | 20251014 |