| Vendor | Spec | Unit | Price | Currency | Date |
| Shinghwa Advanced Material Group Co., Ltd. | China national standards | MT | 899.79 | USD | 20250920 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 815.43 | USD | 20250920 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 815.43 | USD | 20250920 |
| Jinan Dezheng Chemical Co., Ltd. | Industrial Grade | MT | 801.37 | USD | 20250920 |
| Jinan Dezheng Chemical Co., Ltd. | Industrial Grade | MT | 801.37 | USD | 20250920 |
| Jinan Dezheng Chemical Co., Ltd. | Industrial Grade | MT | 801.37 | USD | 20250920 |
| Jinan Dezheng Chemical Co., Ltd. | Industrial Grade | MT | 801.37 | USD | 20250920 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 885.73 | USD | 20250920 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 885.73 | USD | 20250920 |
| Shandong Wells Chemicals Co., Ltd. | China national standards | MT | 885.73 | USD | 20250920 |