| Vendor | Spec | Unit | Price | Currency | Date |
| Shanghai Ronghe Chemical Co., Ltd. | China national standards | MT | 1757.4 | USD | 20250919 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1757.4 | USD | 20250919 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1546.51 | USD | 20250919 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1758.46 | USD | 20250918 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 2039.81 | USD | 20250918 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 2039.81 | USD | 20250918 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1448.97 | USD | 20250918 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 1448.97 | USD | 20250918 |
| Ji'nan Century Lianxing Economic Trade Co., Ltd. | China national standards | MT | 1688.12 | USD | 20250918 |
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1547.44 | USD | 20250918 |