It has been considered as the second largest exhibition and convention venue in Asia and the largest in Southeast Asia with an indoor floor space of over 140,000 sqm.

Impact, Muang Thong Thani originated as the Muang Thong Thani Sports Complex, built for the 1998 Asian Games by real estate developer Bangkok Land.

The Impact Convention Center was built in 2000, while the expansion of IMPACT Exhibition Center was completed in 2003. The column-free Impact Challenger exhibition halls were completed in early 2006. Spanning 60,000 sqm, the Impact Challenger Halls are presently the world’s biggest column-free exhibition halls.

IMPACT the busiest entertainment venue in Thailand for many regional and international artists over the years when they perform in Thailand, spanning a wide range of musical genres. The venue hosts over 490 events and welcomes over 15 million visitors each year.

According to Wikipedia.