Constech Joint Stock Company Address: Khu Nha O Do Thi Van Cat, Vinh Yen City, Vinh Phuc Province Enterprise code: 2500523114 Phone: 0983652738 Representative: Nguyen Cong Khanh Adress: Ninh Ha Hamlet, Tam Duong District, Vinh Phuc Province Vinh Yen City, Phu Tho ProvinceFounding date: 12 - 12 - 2014