| Vendor | Spec | Unit | Price | Currency | Date |
| Jiangsu Youlixin Chemical Co., Ltd. | 90% | MT | 492.46 | USD | 20250901 |
| Jiangsu Youlixin Chemical Co., Ltd. | China national standards | MT | 365.83 | USD | 20250901 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1041.81 | USD | 20250831 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 464.59 | USD | 20250831 |
| Shandong Qiancheng New Materials Co., Ltd. | 90% | MT | 394.2 | USD | 20250831 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1041.81 | USD | 20250831 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 394.2 | USD | 20250831 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.51 | USD | 20250831 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.51 | USD | 20250831 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 1041.81 | USD | 20250830 |