| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 789.53 | USD | 20251025 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1099.71 | USD | 20251025 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 789.53 | USD | 20251025 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 845.93 | USD | 20251025 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 789.53 | USD | 20251024 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 789.53 | USD | 20251024 |
| Yancheng SUPER Chemical Technology Co., Ltd. | China national standards | MT | 817.73 | USD | 20251024 |
| Jiangsu Zhonghu Chemical Co., Ltd. | China national standards | MT | 789.53 | USD | 20251024 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1409.88 | USD | 20251024 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1409.88 | USD | 20251024 |