| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 260.17 | USD | 20250922 |
| Jinan Dezheng Chemical Co., Ltd. | China national standards | MT | 255.96 | USD | 20250922 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 281.27 | USD | 20250922 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 281.27 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 281.27 | USD | 20250922 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 368.46 | USD | 20250922 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 382.53 | USD | 20250922 |
| Zhongyin New Materials (Jinan) Co., Ltd. | China national standards | MT | 255.96 | USD | 20250922 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 393.78 | USD | 20250922 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 323.36 | USD | 20250921 |