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Head office according to business registration: B6-BT5 My Dinh 2 New Urban Area, My Dinh 2 Ward, Nam Tu Liem District, Hanoi City
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Transaction address: 6th floor, Building of Vietnam Journalists Association, Duong Dinh Nghe Street, Yen Hoa Ward, Cau Giay District, Hanoi City, Vietnam.
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Telephone: 024 37833660 - 024 38378866
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Fax: 024 37833661
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Email: infor@kosy.vn - Website: www.kosy.vn
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