| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | Industrial Grade | MT | 801.86 | USD | 20250918 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 787.79 | USD | 20250918 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 815.92 | USD | 20250918 |
| Qingdao Chengxin Hongfeng Chemical Co., Ltd. | China national standards | MT | 787.79 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 815.92 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 815.92 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 815.92 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 815.92 | USD | 20250918 |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 844.06 | USD | 20250918 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 844.06 | USD | 20250918 |