| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 540.82 | USD | 20250826 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 540.82 | USD | 20250826 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 540.82 | USD | 20250826 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 702.37 | USD | 20250826 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 702.37 | USD | 20250826 |
| Nanjing Daze Trading Co., Ltd. | China national standards | MT | 772.6 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 625.11 | USD | 20250826 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 505.7 | USD | 20250826 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 533.8 | USD | 20250826 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 505.7 | USD | 20250826 |