| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 749.08 | USD | 20251210 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 734.95 | USD | 20251210 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 734.95 | USD | 20251210 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 720.82 | USD | 20251210 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 720.82 | USD | 20251210 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 742.02 | USD | 20251210 |
| Nantong Zhonghe Chemical New Material Co., Ltd. | China national standards | MT | 720.82 | USD | 20251210 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 855.09 | USD | 20251210 |
| Shandong Laya Chemical Co., Ltd. | China national standards | MT | 748.87 | USD | 20251209 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 854.85 | USD | 20251209 |