| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 365.9 | USD | 20250925 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 365.9 | USD | 20250925 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 450.34 | USD | 20250925 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 457.38 | USD | 20250925 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 365.9 | USD | 20250925 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 365.9 | USD | 20250925 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 365.9 | USD | 20250925 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 365.9 | USD | 20250925 |
| Shandong Luxi Chemical Co., Ltd. | China national standards | MT | 1041.42 | USD | 20250925 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.27 | USD | 20250925 |