(VOVworld) - Thai princess Maha Chakri Siridhom made a working trip to the central province of Quang Nam on Wednesday as part of her visit to Vietnam at the invitation of Vice President Nguyen Thi Doan. Vice Chairman of the Quang Nam provincial People’s Committee Nguyen Chin hailed the princess’ visit as an opportunity to bolster the cooperative ties between the two countries in general and between Quang Nam and Thai partners in particular. Quang Nam is home to three projects run by Thai investors with a total investment of 13 million USD.  Princess Maha Chakri Siridhom said her visit to Quang Nam aims to study the strength of the locality, particularly its ways to protect the environment and heritage. The princess took the occasion to tour the ancient streets and historical-cultural relics in the World Heritage site of Hoi An./.