A ngelo Koo is a Taiwanese businessman and a prominent member of the powerful Koo family, founders of the Koos Group, one of Taiwan's most influential business conglomerates. He is the eldest son of Koo Chen-fu, a highly respected Taiwanese businessman and diplomat who played a key role in cross-strait relations with mainland China. The family's primary business is in finance, centered around the publicly traded CTBC Financial Holding.

While his cousin Jeffrey Koo Jr. has been more involved in the management of CTBC, Angelo has focused on his own ventures. He is the chairman of China Development Financial Holding, another major Taiwanese financial services company with interests in banking, securities, and venture capital. He has steered the firm through various strategic initiatives and expansions. His career has been marked by the challenge of upholding a significant family legacy while navigating the competitive and dynamic financial landscape of Taiwan and the broader Asian region.