Tags Agricultural Exhibition Centre Thanh Ha lychee fair opens in Ha Noi Friday, May 29, 2020 A three-day fair of Thanh Ha lychee, a specialty of the northern province of Hai Duong, was opened on Friday at the Viet Nam Agricultural Exhibition Centre on Ha Noi''s Hoang Quoc Viet Street, The fair will run until Sunday. Tra fish fair to take place in October Monday, Sep 11, 2017 The tra fish and Vietnamese seafood product fair will be held from October 6 to 8 at the Agricultural Exhibition Centre in Ha Noi’s Cau Giay District.