| Vendor | Spec | Unit | Price | Currency | Date |
| Aite (Zhejiang) Supply Chain Management Co., Ltd. | China national standards | MT | 1069.99 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1105.18 | USD | 20250908 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1281.17 | USD | 20250908 |
| 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 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 999.1 | USD | 20250907 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 999.1 | USD | 20250907 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1125.75 | USD | 20250906 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1055.39 | USD | 20250906 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 985.03 | USD | 20250906 |