[2] Koo was born 24 April 1925 in Jinju, Korea, Empire of Japan to Koo In-Hwoi, who went on to found GoldStar and Lak Hui Chemical Industrial Corp, a plastics manufacturer and, later, a producer of toiletries.
Koo began his career at Lak Hui where he managed production lines for 20 years.
The elder Koo died on 31 December 1969 and left the company to his son as chairman.
[2] During his tenure, the company's revenue increased significantly as it expanded globally across Asia, Europe and North America.
[5] Koo Cha-kyung died on 14 December 2019 at the age of 94.