Since Specialised Expo 1991 Plovdiv, the State of Qatar has actively participated in World and Specialised Expos. It became a Member of the BIE in 1997. Its participation has been rewarded on several occasions, including a Bronze Award in its category at World Expo 2010 Shanghai, and a Gold Award at Specialised Expo 2017 Astana for the design of its presentation. The 164th General Assembly of the BIE formally recognised Horticultural Expo 2021 Doha, which will be organised on the theme "Green Desert, Better Environment".