POLARIS WORKS Inc

MSDI Co., Ltd. designs and manufactures air-to-ground and air-to-air missiles in South Korea. It offers NeoPac, a photo sensor chip-scale package for image sensor applications, and also develops and sells semiconductor chips for image sensors. The company was formerly known as Rnt-X Co., Ltd. and changed its name to MSDI Co., Ltd. in August 2026. Founded in 2003, it is headquartered in Cheongju-si, South Korea.