Mao Geping’s eponymous cosmetics brand today raised HK$2.3 billion ($301 million) in its Hong Kong Initial Public Offering (IPO), with shares surging 85% on their trading debut. The company, founded by the 60-year-old celebrity makeup artist in 2000, saw its retail tranche oversubscribed 920 times, making it Hong Kong’s strongest IPO performance in four years. The entrepreneur now has an estimated net worth of $1.6 billion, according to Forbes estimates. The Hangzhou-based premium beauty brand reported a 41% YoY revenue increase to almost 2 billion RMB ($271 million) in the first half of this year, with plans for expansion into Europe, America, and Asia-Pacific markets.