Huang Ruiying: Female, born in 1969, with a college degree, China nationality, without permanent residency abroad, with professional qualifications such as international registered internal auditor, international registered internal control self-evaluator, accountant and tax accountant. From August 24 to December 218, he served as the head of the finance department, the head of the audit department and the head of the purchasing department of the company; From February 216 to March 219, he served as employee supervisor of the Company; From December 218 to October 219, he served as the Minister of Purchasing Department of Guangdong Hongte Precision Technology Zhaoqing Co., Ltd.; At present, he is the financial controller of Guangdong Yuanjian Precision Hardware Co., Ltd.