| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 365.76 | USD | 20250918 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 365.76 | USD | 20250918 |
| Chang Zhou Qi Di Chemical Co., Ltd. | China national standards | MT | 450.17 | USD | 20250918 |
| Shandong Luxi Chemical Co., Ltd. | 90% | MT | 534.57 | USD | 20250918 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 457.2 | USD | 20250918 |
| Liaocheng Yuanze Chemical Co., Ltd. | China national standards | MT | 457.2 | USD | 20250918 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.5 | USD | 20250918 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.5 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.1 | USD | 20250918 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 436.1 | USD | 20250918 |