| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1137.83 | USD | 20250826 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 814.74 | USD | 20250826 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 786.65 | USD | 20250826 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 884.98 | USD | 20250826 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 877.96 | USD | 20250826 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 884.98 | USD | 20250826 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 877.96 | USD | 20250826 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 814.74 | USD | 20250826 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 815.05 | USD | 20250825 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 815.05 | USD | 20250825 |