| Vendor | Spec | Unit | Price | Currency | Date | 
| Shandong Langcheng Chemical Co., Ltd. | China national standards | MT | 1198.36 | USD | 20251021 | 
| Shandong Yuxuan Chemical Products Co., Ltd. | China national standards | MT | 1311.15 | USD | 20251021 | 
| Shandong Xingpeng Yongfa Chemical Co., Ltd. | China national standards | MT | 1078.53 | USD | 20251021 | 
| Befar Group Co., Ltd. | China national standards | MT | 1127.87 | USD | 20251021 | 
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 1057.38 | USD | 20251021 | 
| Shandong Xima Supply Chain Management Co., Ltd. | China national standards | MT | 958.69 | USD | 20251021 | 
| Shandong Yeyang Chemical Co., Ltd. | China national standards | MT | 1240.66 | USD | 20251021 | 
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 986.89 | USD | 20251021 | 
| Shandong Yihe Fine Chemical Co., Ltd. | China national standards | MT | 986.89 | USD | 20251021 | 
| Befar Group Co., Ltd. | China national standards | MT | 888.2 | USD | 20251021 |