| Vendor | Spec | Unit | Price | Currency | Date |
| Nantong Zhonghe Chem | China national standards | MT | 389.59 | USD | 20251029 |
| Nantong Zhonghe Chem | China national standards | MT | 389.52 | USD | 20251028 |
| Nantong Zhonghe Chem | China national standards | MT | 389.39 | USD | 20251027 |
| Nantong Zhonghe Chem | China national standards | MT | 389.39 | USD | 20251027 |
| Nantong Zhonghe Chem | China national standards | MT | 389.13 | USD | 20251024 |
| Nantong Zhonghe Chem | China national standards | MT | 389.18 | USD | 20251023 |
| Nantong Zhonghe Chem | China national standards | MT | 388.98 | USD | 20251022 |
| Nantong Zhonghe Chem | China national standards | MT | 389.12 | USD | 20251021 |
| Nantong Zhonghe Chem | China national standards | MT | 388.88 | USD | 20251020 |
| Nantong Zhonghe Chem | China national standards | MT | 389.01 | USD | 20251017 |