| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 435.83 | USD | 20250920 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 435.83 | USD | 20250920 |
| Shandong Luxi Chemical Co., Ltd. | China national standards | MT | 1040.38 | USD | 20250920 |
| Shandong Qiancheng New Materials Co., Ltd. | 90% | MT | 393.66 | USD | 20250920 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1040.38 | USD | 20250920 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 393.66 | USD | 20250920 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 449.89 | USD | 20250920 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 449.89 | USD | 20250920 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 449.89 | USD | 20250920 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 449.89 | USD | 20250920 |