| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 658.53 | USD | 20250817 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 819.66 | USD | 20250816 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 819.66 | USD | 20250816 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 658.53 | USD | 20250816 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 742.6 | USD | 20250816 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 819.66 | USD | 20250815 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 819.66 | USD | 20250815 |
| Qingdao Shengze Chemical Co., Ltd. | Industrial Grade | MT | 819.66 | USD | 20250815 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 819.66 | USD | 20250815 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 658.53 | USD | 20250815 |