Marubeni Itochu is a Japanese group specializing in provision of steel used in petroleum exploration with 75 offices all over five continentals, but the company has just been in Vietnam for a few recent years. While coming from a big group, the company’s office in Hanoi seems to be modest with a space of 140m2, where a staff of less then ten people has been working. Despire a small space, the office of Marubeni Itochu is extremely impressive. It results from a clear determination on the firm’s objective, and hence, on the request toward TTT Architects, the designer. As a result, the design proposed by the architect Le Huy Truc has been realized. As a steel company, Marubeni Itochu requires a strong and young office space, rather than rough and impersonal as an association of steel. What is hard to the designer is how to compromise between the vivid and cheerful feeling of the youth and the strong substance of steel. The solution turns out to be simple: contrasting colors are used to create the vividity and strength. Orange, black, grey, and white are used in proper proportions, with orange and black being a contrasting pair to be a focus, bringing about inspiration. The proportions of the colors seem to be well accounted to prevent the feeling that the space is fragmented by using too many colors. The orange of the logo ‘Marubeni Itochu’ is vividly employed: it is the background of the colorful lighting logo on the floor of the lobby, but the orange logo and the name of the company remain original on the frosted glass panel. All go together with vertical black steel bars as if they want to assert with visitors that they are visiting a company specializing in steel business. The internal architectural bulk is a combination of curves and lines. Functional space is also flexibly organized based on the building’s existing structure and partitions created by design. Internal materials are quite simple: roughly painted MDF, glass partitions, natural-material curtains, wooden floor, and carpets. They all generate a working space of 140m2 with a strong and young constitution.