| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 994.97 | USD | 20250819 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1037.01 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1100.07 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1275.24 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1247.21 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1093.06 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1093.06 | USD | 20250819 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1072.04 | USD | 20250819 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1121.09 | USD | 20250819 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1051.02 | USD | 20250819 |