The Secretary for Education, Mr Eddie Ng Hak-kim (second right), and the Chairman of the Board of Directors of the Po Leung Kuk (PLK), Dr Pollyanna Chu (first right), today (September 8) officiate at the launch ceremony of My Pledge Day 2015, "My Pledge to Act - Love Our Home and Clean Hong Kong" at PLK Riverain Primary School and sign the pledge.