| Vendor | Spec | Unit | Price | Currency | Date |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 882.41 | USD | 20250804 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1050.49 | USD | 20250804 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1134.53 | USD | 20250804 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 980.46 | USD | 20250804 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 812.38 | USD | 20250804 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 812.38 | USD | 20250804 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 811.23 | USD | 20250802 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1132.93 | USD | 20250801 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1049.01 | USD | 20250801 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 979.08 | USD | 20250801 |