RONGZHENG strictly implements the ISO9001:2015 management system standards, and strictly reviews all suppliers. It is stipulated that all suppliers should hold formal brand agency qualifications and certificates. RONGZHENG already has a large supplier rating system with detailed information on more than 1,000 suppliers. Every quarter, we review all suppliers and strictly implement our rating system. 

We have a group of brand agents with high reputation in the industry, and continue to cooperate for more than 10 years. They have professional, rich industry experience and quality of the formal product channels. Through long-term and strict evaluation of the reputation of cooperative suppliers and product quality, RONGZHENG has accumulated a group of high-quality brand dealers and regular agents, ensuring the reliability of product quality and source.