Bangkok-11 Aug-IMPACT Exhibition Her Royal Highness Princess Maha Chakri Sirindhorn graciously presided over the opening ceremony of 'TheRoyal Peacock Brand for the Legend of Thai Silk 2015' at Hall 8, IMPACT Exhibition Center, Muang Thong Thani, where she was welcomed and presented a hand garland by Miss Kornchaya Chawvorravinyoo, Corporate Communications Manager of IMP