| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 714.35 | USD | 20251208 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 847.89 | USD | 20251208 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 777.23 | USD | 20251208 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 699.51 | USD | 20251208 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 714.35 | USD | 20251208 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 748.97 | USD | 20251208 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 946.81 | USD | 20251208 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 946.81 | USD | 20251208 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 854.95 | USD | 20251208 |
| Shandong Wonfull Petrochemical Group Co., Ltd. | China national standards | MT | 714.5 | USD | 20251207 |