| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 539.81 | USD | 20250823 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 504.76 | USD | 20250823 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 539.81 | USD | 20250822 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 539.81 | USD | 20250822 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 504.76 | USD | 20250822 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 623.94 | USD | 20250822 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 504.76 | USD | 20250822 |
| Shandong Mengkangda Chemical Co., Ltd. | China national standards | MT | 532.8 | USD | 20250822 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 701.06 | USD | 20250822 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 701.06 | USD | 20250822 |