The story
Founded in 2000, China Metal Recycling was listed on the Hong Kong Stock Exchange in June 2009, pricing its IPO at HK$5.15 per share. Its share price rose 24% on the first trading day to HK$6.44.
In November 2009, the company's CFO, Wong Hok-leung, abruptly resigned, citing denial of access to key information. The share price plunged 24% in a single day following the announcement.
From Wikipedia’s article on China Metal Recycling, shared under CC BY-SA 4.0.3