Chinese cement company Tianrui's shares crash 99% in 15 minutes

Chinese cement producer Tianrui's shares crashed 99% in the final 15 minutes of trading on Tuesday following a massive selloff. It led the $1.9-billion listed company to halt the trading of its Hong Kong-listed shares on Wednesday. Tianrui was US private equity firm KKR's first mainland China investment in 2007 and four years later, KKR helped Tianrui in its IPO.