Boonsom is a producer of spirulina since early 1990s in Mae Wang village, a nature center with the Mae Win river and elephant camps 7km west of the farm. Visitors are invited to view a short video history of the farm and the 7 production steps of spirulina as well as purchase spirulina products. Boonsom also operates a shop called Green Cup at Star Avenue 3 Viva Terrace, Mahidol Road. Open Mon-Sun 9:00am-6:00pm.