A worker refreshes himself with a fan after loading a container with rice bags at an export plant in the central Chainat province in Thailand, December 16, 2015. (Photo by Jorge Silva/Reuters)

A sugar cane worker poses while working in a field at Pakchong district in Ratchaburi province, Thailand March 22, 2016. The El Nino weather phenomenon has played havoc with crops across Southeast Asia and beyond. Thailand, the world's second-largest sugar exporter, will ship 20 percent less of the sweetener to international markets this year than last, and farmers fear the damage already inflicted on young cane plants could make next year worse. (Photo by Jorge Silva/Reuters)

A tiger yawns next to a piglet at the Sriracha Tiger Zoo, in Chonburi province, Thailand, June 7, 2016. (Photo by Chaiwat Subprasom/Reuters)

A Tai Yai boy waits for a ceremony to begin at Wat Don Chedi on April 7, 2014 in Mae Hong Son, Thailand. Poy Sang Long is a Buddhist novice ordination ceremony of the Shan people or Tai Yai, an ethnic group of Shan State in Myanmar and northern Thailand. Young boys aged between 7 and 14 are ordained as novices to learn the Buddhist doctrines. It's believed that they will gain merit for their parents by ordaining. (Photo by Taylor Weidman/Getty Images)

Workers carry baskets of hand-picked tea leaves at the Makaibari Tea Estate in Kurseong, West Bengal, India, on Monday, September 8, 2014. The 155-year-old Makaibari Tea Estate recently sold it's Darjeeling tea, named Silver Tips Imperial, for $1,850 a kilo to buyers from the U.K., the U.S. and Japan, becoming the most expensive Indian tea ever sold. (Photo by Sanjit Das/Bloomberg)

A farmer rides a truck in a village near Nong Khai, Thailand, September 16, 2015. (Photo by Jorge Silva/Reuters)

Danusorn Sdisaithaworn, 10, poses for a portrait during an annual Poy Sang Long celebration, a traditional rite of passage for boys to be initiated as Buddhist novices, while he visits a relative's house outside Mae Hong Son, Thailand, April 4, 2018. (Photo by Jorge Silva/Reuters)

In this October 6, 1976 file photo a member of a Thai political faction strikes at the lifeless body of a hanged student outside Thammasat University in Bangkok October 6, 1976. For some Thais, the bloody events of October 6, 1976 are still a nightmare. On that day, heavily armed security forces shot up Bangkok's Thammasat University campus and killed scores of students, while right-wing vigilantes captured would-be escapees, subjecting them to ghoulish lynchings. (Photo by Neal Ulevich/AP Photo)