Thailand has been a member of the BIE since 1993, but its involvement in Expos dates as far back as 1862, when the Kingdom sent a delegation to the World Expo in London. Since then, the country’s participation in World Expos, Specialised Expos and Horticultural Expos has been continuous, with the Thai pavilion receiving an award for its theme development at Expo 2008 in Zaragoza. Thailand organised Horticultural Expo 2006-7 – Royal Flora Ratchapruek – in the city of Chiang Mai.