| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1170.89 | USD | 20250924 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1210.3 | USD | 20250924 |
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1210.3 | USD | 20250924 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1090.67 | USD | 20250924 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1184.96 | USD | 20250924 |
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1118.82 | USD | 20250924 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1125.86 | USD | 20250924 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1125.86 | USD | 20250924 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1168.08 | USD | 20250924 |
| Jia'en Chemical (Shandong) Co., Ltd. | China national standards | MT | 1177.93 | USD | 20250923 |