| Vendor | Spec | Unit | Price | Currency | Date | 
| Shandong Zhihengda Import and Export Co., Ltd. | China national standards | MT | 1170.17 | USD | 20251021 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1212.46 | USD | 20251021 | 
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 986.89 | USD | 20251021 | 
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1205.41 | USD | 20251021 | 
| Shandong Jinling Chemical Ao.,ltd | China national standards | MT | 1205.41 | USD | 20251021 | 
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1205.41 | USD | 20251021 | 
| Shandong Mingyu Supply Chain Management Co., Ltd. | China national standards | MT | 1205.41 | USD | 20251021 | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1172.99 | USD | 20251021 | 
| Befar Group Co., Ltd. | China national standards | MT | 888.2 | USD | 20251021 | 
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1240.66 | USD | 20251021 |