| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1279.74 | USD | 20250827 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1103.95 | USD | 20250827 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1040.67 | USD | 20250827 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1125.05 | USD | 20250827 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1054.73 | USD | 20250827 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1011.41 | USD | 20250826 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1011.41 | USD | 20250826 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1053.55 | USD | 20250826 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1123.78 | USD | 20250826 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1039.5 | USD | 20250826 |