Phu Tung O To Huynh Trang LTD Address: No 1a, Lane 6, 1a Highway, Ky Lua Ward, Tinh Lang Son, Viet Nam Enterprise code: 4900940620 Phone: 0393193086; Representative: Phung Thi Trang Ky Lua Ward, Lang Son City, Lang Son ProvinceFounding date: 6 - 3 - 2026