Changqing chemical group is a comprehensive chemical company which collects the scientific research, production and trade as a whole. Our bon acid, salicylic acid, and its derivatives are well-sold in european, american and south-east asian countries and regions, which enjoy high reputation in international market. And we have also passed ISO 9002 quality system certification. Depending on strong technical support and eminent managing theory, we provide our esteemed clients from home and abroad with high-quality products and good service. Taking" all for the requirements from customers" as our business printciple, we sincerely welcome the friends from home and overseas to negotiate and cooperate with us.