| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 464.42 | USD | 20250915 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.35 | USD | 20250915 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.35 | USD | 20250915 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.35 | USD | 20250915 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 450.35 | USD | 20250915 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 394.06 | USD | 20250915 |
| Shandong Qiancheng New Materials Co., Ltd. | China national standards | MT | 1041.43 | USD | 20250915 |
| Shandong Qiancheng New Materials Co., Ltd. | 90% | MT | 394.06 | USD | 20250915 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 450.35 | USD | 20250915 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 351.84 | USD | 20250915 |