Samsung TechwinHanwha Techwin (Korean: 한화테크윈) is a surveillance, aeronautics, optoelectronics, automations and weapons technology company. It is a subsidiary of Hanwha Group. The company employs 4,923 employees and is headquartered in South Korea. Its totals sales in 2011 was 2,947 billion South Korean won.
The company was originally founded as Samsung Techwin in 1977. Under Samsung the company established a precision instrument laboratory in 1978, and started making cameras in 1979. In technical cooperation with General Electric, it started manufacturing jet engines for Korean aircraft in 1980. Manufacture of 155 mm (6.1 in) self-propelled artillery began in 1984.