Net Worth details: Yeung Kin-Man owns 51 percent of Biel Crystal Manufactory, which supplies glass touch screens for smartphones and is partnered with Apple, LG, and Samsung. Yeung Kin-Man owns the company along with his wife Lam Wai Ying, although Yeung is credited with the entire fortune as the founder and CEO of the company, who had a revenue of $4.6 billion in 2015.