National Astronomical Research Institute of Thailand Thai National Observatory (TNO) is NARIT's main facility, atop Thailand's highest mountain, Doi Inthanon in Doi Inthanon National Park, Chom Thong District, Chiang Mai Province. The concept of a national astronomical research institute was discussed for the first time in the Assembly of the Deans of the Faculty of Science in Thai universities. On July 20, 2004, commemorating His Majesty King Bhumibol's 80th Birthday Anniversary in 2007 and marking the bicentenary of the life and work of King Mongkut the "Father of Thai Science" the government approved the establishment of the National Astronomical Research Institute of Thailand (NARIT), under the
Doi Kham additives. Their products do not contain preservatives or artificial flavors. Doi Kham Food Products is a private limited company. In recent years it has been profitable. In 2016, the firm had revenues of 1.82 billion baht. Projections for 2017 and 2018 are 2.07 billion baht and 2.4 billion baht. Doi Kham employs total of 200 persons including five engineers and five quality assurance staff. Doi Kham has processing plants in Fang District, Chiang Mai Province; Mae Chan District, Chiang Rai Province; and Tao Ngoi District, Sakon Nakhon Province. The company has 34 retail shops nationwide. Doi Kham The Doi Kham