| Vendor | Spec | Unit | Price | Currency | Date |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1129.05 | USD | 20251028 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1125.89 | USD | 20250930 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1125.86 | USD | 20250924 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1125.86 | USD | 20250923 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1125.08 | USD | 20250922 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1124.73 | USD | 20250919 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1124.73 | USD | 20250919 |