| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1253.01 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1077.02 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1098.14 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1098.14 | USD | 20250908 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 985.51 | USD | 20250908 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 985.51 | USD | 20250908 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1041.83 | USD | 20250908 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.59 | USD | 20250908 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.59 | USD | 20250908 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1055.91 | USD | 20250908 |