| Vendor | Spec | Unit | Price | Currency | Date |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 888.2 | USD | 20251021 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 887.66 | USD | 20251020 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 887.39 | USD | 20251015 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 887.06 | USD | 20251014 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 886.72 | USD | 20251011 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 886.72 | USD | 20251010 |