| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 505.9 | USD | 20250825 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 505.9 | USD | 20250825 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 623.94 | USD | 20250823 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 504.76 | USD | 20250823 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 504.76 | USD | 20250823 |
| Nanjing Daze Trading Co., Ltd. | China national standards | MT | 771.16 | USD | 20250823 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 539.81 | USD | 20250823 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 539.81 | USD | 20250823 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 504.76 | USD | 20250823 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 539.81 | USD | 20250822 |