| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 759.41 | USD | 20250827 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 871.91 | USD | 20250827 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 787.53 | USD | 20250827 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 766.44 | USD | 20250827 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 759.41 | USD | 20250827 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 759.41 | USD | 20250827 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 759.41 | USD | 20250827 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 983.31 | USD | 20250826 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 913.08 | USD | 20250826 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 983.31 | USD | 20250826 |