/ Our Projects our milestone projects Our Global approach combined with our scalable adaptable resource, allows to focus on timely.Coteccons delivery for our Clients, and provide lasting value to the partnership. COMMERCIAL × RESIDENTIAL × hospitality × technology × industrial × infrastructure × Projects The Diamond Crown Vietnam A landmark in Hai Phong, it is Vietnam’s first building with a diagrid structure. Coteccons constructed 248 Diagrid points and completed a 3,300 m² floor in a record of just three days.