chairman of the audit committee    Zhang Yizhao
Born in 1970, Canadian citizenship, certified public accountant in state of Delaware USA and member of the American Institute of Certified Public Accountants (AICPA), the Chartered Global Management Accountant (CGMA).
In 1992, graduated from the Fudan University of Shanghai, obtained a bachelor's degree in economics;
1993-1999, in charge of investment portfolio management and asset trading in Guangdong Southern Financial Services Co.;
In 2003, obtained master degree of Business Administration and Management from State University of New York at Buffalo U.S.A, majoring in financial analysis and accounting.
At present, serves as independent non-executive director of Kaisa Group Holdings Limited (Hong Kong stock exchange code: 1638) and China Carbon Graphite Group (OTC BB:CHGI);
Once served in China Green Agriculture, Inc., China Education Alliance, Inc., Universal Travel Group , Energroups Holdings Corporation , Asia Media Co.  Ltd, Shengtai Pharmaceutical Inc., Carson International Holdings Co.,  Ltd., China Natural Resources Incorporation and Chinawe Asset Management Corporation as director or in senior position.
June 2016 to now, chairman of Audit Committee and independent director of Great China International Holdings Company.

Chairman of Governance and Nomination Committee    Huang Ying
Born in 1962, US Citizenship, master degree of the business school at the University of Chicago; Founder of Kaiyi Food Co. Ltd., engaged in the study of seed, development of planting base and product processing industry, becoming one of the largest supplier in United States.Ying has been the Independent Director and Chairman of Governance and Nomination Committee of HH Biotech since September 2016. Born in 1962, Ying is the founder of Kaiyi Food Co. Ltd., a supplier in the food industry in United States. Ying is also engaged in botany, plantation development, and the product processing industry. Ying has been the Chairman and President of the US One Bamboo Investment Management Company since 2007. From 2010 to 2012, Ying was the Dean of Business School and a member of the "Think Tank" at University of Chicago. From 1995 to 2014, Ying was the Chairman and Chief Executive Officer of Hongkong Far East Group. Ying was also the Chairman of Chairman of the Qingdao Kaiyi Food Co., Ltd., the Chiarman and President of U.S Kaiyi Food Co. Ltd. from 1993 to 2007. In 2005, Ying served as a Spokeswoman for the American Association of Food Seasoning. Ying was also a Honorary Director of University of Chicago from 2010 to 2014. Ying holds a master degree from Business School of University of Chicago.From 2016-now, an independent director of Great China International Holdings Company, and chairman of Governance and Nomination Committee.