| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 1695.06 | USD | 20251202 |
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1151.23 | USD | 20251202 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 1567.93 | USD | 20251202 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 1582.05 | USD | 20251202 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 1610.31 | USD | 20251202 |
| Shandong Hongyang Chemical Co., Ltd. | China national standards | MT | 1130.04 | USD | 20251202 |
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1624.43 | USD | 20251202 |
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1638.56 | USD | 20251202 |
| Jiangsu Yingte Chemical Co., Ltd. | China national standards | MT | 1144.16 | USD | 20251202 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1313.67 | USD | 20251202 |