Dr.Bihong Guan is a famous Chinese community leader and Chinese social activist in US east coast.He is also the honorary board director ofo.S.China Trading andiExchanging Service Co.

• 管必红博士是美国东部地区知名侨领、知名华裔社会活动家，同时也是美中贸易交流服务有限公司名誉董事长。