FAP, June 14 (FAP)-- Pacific Century Shengda and its concerted actors Pacific Century Shenglong and Pacific Century Shengtong plan to adopt centralized bidding trading, block trading, or through a combination of block trading and centralized bidding to reduce their holdings of no more than 10.3562 million shares (accounting for 2.0368 per cent of the company's total share capital) within six months after three trading days.