Xay Dung Pens Joint Stock Company Address: 2nd Floor, HH2 Building, Duong Dinh Nghe Street, Yen Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0111091891 Phone: 0906088464 Representative: Nguyen Phan Giang Yen Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 16 - 6 - 2025