China Polymetallic Mining (HKG:2133) independent non-executive director Maarten Albert Kelder increased his long position in the company from 0.35% to 0.37% on December 30 by acquiring 400,000 shares at HK$1.85 per share on average on the Stock Exchange, the Stock Exchange's Disclosure of Interests information shows.
 

Source:chinesestock.org