| Vendor | Spec | Unit | Price | Currency | Date |
| Xiamen Xiangyu Chem | China national standards | MT | 890.28 | USD | 20251208 |
| Yongli Beijing Internet | China national standards | MT | 889.24 | USD | 20251124 |
| Baoding Nawei Tech | China national standards | MT | 868.45 | USD | 20251117 |
| ZJ Tianchen Textile | China national standards | MT | 900.81 | USD | 20251114 |
| Xiamen Xiangyu Chem | China national standards | MT | 884.78 | USD | 20251106 |
| ZJ Tianchen Textile | China national standards | MT | 890.27 | USD | 20251009 |
| Baoding Nawei Tech | China national standards | MT | 903.41 | USD | 20250905 |
| Baoding Nawei Tech | China national standards | MT | 909.04 | USD | 20250905 |
| Hebei Tietan | China national standards | MT | 931.59 | USD | 20250714 |
| Hebei Tietan | China national standards | MT | 890.51 | USD | 20250603 |