Chiang Rai, During this time on the banks of the Mekong River in the Triam Kham Special Economic Zone of the Lao PDR, which Chinese investors operate The 21st Nile Flower Festival is being held in a big way. and full of color which has received the attention of many Lao people and foreign tourists. To create tourism trends along the Mekong River Hoping to clear up the image of a world-class drug production center in the past . Source: Thai News Agency