| Vendor | Spec | Unit | Price | Currency | Date |
| Changzhou Hechun Chem | China national standards | MT | 590.43 | USD | 20251126 |
| Changzhou Hechun Chem | China national standards | MT | 593.25 | USD | 20251126 |
| Changzhou Hechun Chem | China national standards | MT | 590.18 | USD | 20251125 |
| Changzhou Hechun Chem | China national standards | MT | 587.18 | USD | 20251124 |
| Changzhou Hechun Chem | China national standards | MT | 588.36 | USD | 20251121 |
| Changzhou Hechun Chem | China national standards | MT | 591.21 | USD | 20251119 |
| Changzhou Hechun Chem | China national standards | MT | 594.5 | USD | 20251117 |
| Changzhou Hechun Chem | China national standards | MT | 593.01 | USD | 20251114 |
| Changzhou Hechun Chem | China national standards | MT | 592.68 | USD | 20251113 |
| Changzhou Hechun Chem | China national standards | MT | 597.18 | USD | 20251112 |