| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 811.23 | USD | 20250801 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 874.17 | USD | 20250801 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 881.17 | USD | 20250801 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 811.23 | USD | 20250801 |