| Vendor | Spec | Unit | Price | Currency | Date |
| Xiamen Xiangyu Chem | China national standards | MT | 890.28 | USD | 20251208 |
| Yongli Beijing Internet | China national standards | MT | USD | 20251124 | |
| Baoding Nawei Tech | China national standards | MT | USD | 20251117 | |
| ZJ Tianchen Textile | China national standards | MT | USD | 20251114 | |
| Xiamen Xiangyu Chem | China national standards | MT | USD | 20251106 | |
| ZJ Tianchen Textile | China national standards | MT | USD | 20251009 | |
| Baoding Nawei Tech | China national standards | MT | USD | 20250905 | |
| Hebei Tietan | China national standards | MT | USD | 20250714 | |
| Hebei Tietan | China national standards | MT | USD | 20250603 |