 In 2019, Koo's youngest son Andre Koo is currently ranked as Taiwan's #28th wealthiest and #1349 world-wide at $1.7 billion.The Koo family was ranked #47th of #50 in 2016 Asia's Richest Families Net Worth at $3.7 billion.Sources say the Koo Family in 2018 ranked behind the $5 billion Forbes Asia Richest Families net worth cutoff at $4.6 billion; short of $400 million.