(Wines&Vines) - An international cadre of professionals seeking a toehold in the Chinese wine market looked to professor Huiqin Ma for advice during the opening day of the Hong Kong International Wine & Spirits Fair. Huiqin, who spoke at Sonoma State University in California earlier this year, is a wine and grape researcher and instructor at China Agricultural University in Beijing. Her presentation Thursday in Hong Kong helped explain the importance of wine imports to the Chinese market, and why domestic Chinese wine producers may be at a disadvantage..