Dongguan Fanlong Metal Co., Ltd. Shenzhen Yongjiarun Tin Industry Co., Ltd., founded in September 2013, is a manufacturer engaged in the development, manufacturing and marketing of electronic soldering materials. In May 2017, it was awarded the honorary title of the first Top 10 Electronic Tin Solder Enterprises in the Chinese Electronic Materials Industry. It is also a governing unit and member of organizations such as the China Electronic Tin Solder Industry Association and the Shenzhen Entrepreneur Federation. Yongjiarun Metal has always adhered to the core values of "integrity, pragmatism, innovation, and efficiency", adhered to the purpose of honest management, and passed the certifications of ISO9001:2015 international quality management system and ISO14001:2015 international environmental management system in July 2016 and January 2017, respectively. It adopts an information-based management model, has the courage to innovate and expand its spirit, and through long-term active investment and close cooperation with universities and research institutions, Yongjiarun Metal has developed into an excellent enterprise with deep influence in the industry.