The story
In 2004, the company was divided into GIIR, which engages in investment and management consulting for its subsidiaries, and LG Ad, which engages in advertising. In April 2008, LG Ad was renamed HS Ad. To provide global services, HS Ad operates offices in New York, Los Angeles, Atlanta, Toronto, Kyiv, Sao Paulo, Beijing, Moscow, Bangkok, Tokyo, Istanbul, Frankfurt, Stockholm, Paris, Milan, Amsterdam, London, Dubai and New Delhi and has a creative boutique, Wisebell, as a subsidiary.
From Wikipedia’s article on HS Ad, shared under CC BY-SA 4.0.4