On June 11 & July 19, 2018, the review team of Shanghai ICAS Certification Institution conducted a review to the certificate renewal audit of ISO9001:2015 quality management system for Suzhou LETDO Electronics Co., Ltd. and Xiamen LETDO Electronics Co., Ltd. respectively. This time’s audit was a revision and renewal review. The auditing standards required high and the coverage was wide. After extensive sampling and detailed review, the expert group gave the final conclusions which the two companies all passed the review. During the audit, the review team audited the branches and departments according to the ISO9001:2015 quality management system standard elements. Since they obtained the ISO9001:2008 quality system certificate in first time in 2009, Suzhou LETDO and Xiamen LETDO have attached great importance to the quality management systems’ implementation and continuous improvement, the establishment of the system is suitable for achieving the organizations policy ives, and has played a good role in promoting the development of the enterprise. The audit was extensive and comprehensive. The review team fully affirmed the standardized management and quality assurance capabilities of Suzhou LETDO and Xiamen LETDO, and provided valuable opinions on the companys continuous improvement of quality. LETDO Electronics will use this as the focus of the next phase of system management, and continuously promote the companys quality and environmental management work to further develop, further improve management level and enhance management efficiency.