Based on corporate announcements and news flow today, stocks in focus on Friday (Sept 20) may include Eco World Development Group Bhd, Eco World International Bhd, AirAsia Group Bhd, AirAsia X Bhd, Malaysia Airports Holdings Bhd, KESM Industries Bhd, Prinsiptek Corp Bhd, Kejuruteraan Asastera Bhd, Media Prima Bhd, Perisai Petroleum Teknologi Bhd and PUC Bhd