| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1097.6 | USD | 20250906 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1097.6 | USD | 20250906 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1280.54 | USD | 20250906 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1104.64 | USD | 20250906 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1041.31 | USD | 20250906 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1069.46 | USD | 20250906 |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1027.24 | USD | 20250906 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.1 | USD | 20250906 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 1027.24 | USD | 20250905 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1125.75 | USD | 20250905 |