| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Luxi Chemical Co., Ltd. | China national standards | MT | 323.54 | USD | 20250929 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 450.14 | USD | 20250929 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 351.67 | USD | 20250929 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 1040.03 | USD | 20250928 |
| Zhongyin New Materials (Jinan) Co., Ltd. | 90% | MT | 449.74 | USD | 20250928 |
| Shandong Zhenkun New Materials Co., Ltd. | 90% | MT | 393.52 | USD | 20250928 |
| Shandong Zhenkun New Materials Co., Ltd. | China national standards | MT | 323.25 | USD | 20250928 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 435.69 | USD | 20250928 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 435.69 | USD | 20250928 |
| Qingdao Shengze Chemical Co., Ltd. | China national standards | MT | 435.69 | USD | 20250928 |