Make tomorrow COUS KOREA COUS KOREA is a company which creates value in stakeholders, customers,and the environment. We are committed to prevent climate change, such as severe hotness and coldness. During summer and winter, films and air caps are used on the window to insulate heat from coming in(summer) or going out(winter). But what customers really wants is a product that is easy to DIY and efficient. That is why COUS KOREA is presenting our product. Our product is a nano heat blocking sheet/film that needs only water to bind itself to the window. By using water as a bond, Our product is easy to reuse without wear out.