| Vendor | Spec | Unit | Price | Currency | Date |
| Tongling Chemical Industry Group Corp.ltd | China national standards | MT | 872.2 | USD | 20250918 |
| Panjin Read Chemical Co., Ltd. | China national standards | MT | 873.6 | USD | 20250918 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 886.99 | USD | 20250916 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 943.3 | USD | 20250916 |
| Jinan Shengfeng Industry and Trade Co., Ltd. | China national standards | MT | 901.07 | USD | 20250916 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 929.22 | USD | 20250916 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 886.99 | USD | 20250916 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 971.46 | USD | 20250916 |
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 971.07 | USD | 20250915 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 942.92 | USD | 20250915 |