Title: World Open (snooker)
Content:  The World Open is a professional ranking snooker tournament. Throughout its history, the tournament has undergone numerous revamps and name changes. It started out in 1982 as the Professional Players Tournament, but for most of the 1980s and 1990s it was known as the Grand Prix. It was renamed the LG Cup from 2001 to 2003 before reverting to the Grand Prix until 2010. Since then it has been known as the World Open. During 2006 and 2007, it was played in a unique round-robin format, more similar to association football and rugby tournaments than the knock-out systems usually played in snooker. The knock-out format returned in 2008 with an FA Cup-style draw. The random draw was abandoned after the 2010 edition. Judd Trump is the defending champion.
Title: 2019 World Open (snooker)
Content:  The 2019 World Open was a professional snooker tournament held at the Yushan Sport Centre in Yushan, China between 28 October and 3 November 2019. This was the 2019 edition of the World Open tournament, the first having been held in 1982 as the 1982 Professional Players Tournament. It was the fifth ranking event of the 2019/20 snooker season following the English Open and preceding the Northern Ireland Open. It was played as the best-of-9-frames until the semi-finals, which were best-of-11-frames, followed by a best-of-19-frames final. The event featured 64 participants from the World Snooker Tour with a single qualifying round. The World Professional Billiards and Snooker Association and World Snooker organised the World Open.
Title: World Open (snooker)
Content:  Prix was reformatted and renamed to World Open. The event gave a chance for amateurs to play alongside professionals. The amateurs had to win 3 matches to qualify for the main draw. On 9 January 2012 it was announced, that the World Open would be held in the next five years in Haikou on the Hainan Island. In November 2014, it was announced that the tournament would not be held in the 2014/2015 season after the contract with the promoter was not renewed and a new venue was not found in time. The event returned in the 2016/2017 season and is now held in Yushan.
Title: 2019 World Open (snooker)
Content:  The 2019 World Open (also known as the 2019 Yushan World Open) was a professional snooker tournament that took place between 28 October and 3 November 2019 at the Yushan Sport Centre in Yushan, China. This was the 2019 edition of the World Open, which was first held in 1982. It was the fifth ranking event of the 2019–20 season and the third tournament of the season to be held in China. The event featured a prize fund of £772,000 with the winner receiving £150,000. Mark Williams was the defending champion, having won the 2018 event, defeating David Gilbert 10–9 in the final. Williams did not enter this year's tournament. The two finalists were Judd Trump and Thepchaiya Un-Nooh, after Trump defeated John Higgins and Un-Nooh defeated Kyren Wilson in the semi-finals by the same 6–5 scoreline. Trump won the tournament, for his 13th ranking event title, defeating Un-Nooh 10–5 in the final.
Title: 2017 World Open (snooker)
Content: Notes These matches were held between 6 and 9 August 2017 at the Preston Guild Hall in Preston, England. All matches were best of 9 frames. 
Title: 2004 European Open (snooker)
Content:  Prior to the 1988/1989 season no ranking tournament had been continuously staged outside of the United Kingdom (although the World Championship had been held twice in Australia). The snooker governing body, the World Professional Billiards and Snooker Association (WPBSA), decided to include overseas events and the first two locations chosen were Canada and Europe. The European Open was first held in 1989 in Deauville, France, and was suspended for 1997/1998 and 2000/2001. It moved to the Hilton Conference Centre, Portomaso, Malta for the first time in 2004 and was renamed the Malta Cup the following season. The 2004 tournament was the fifth of eight WPBSA ranking events in the 2003/2004 season, following the Welsh Open and preceding the Irish Masters. Held in January, the Welsh Open was won by Ronnie O'Sullivan, who defeated Steve Davis by nine to eight (9–8) in the final. The defending European Open champion was also O'Sullivan, who defeated Stephen Hendry 9–6 in last year's final. Paul Hunter, who had defeated O'Sullivan in the final of the non-ranking Masters in February, entered the tournament "playing the best snooker of his career", according to Phil Yates of The Times.
Title: 2014 World Open (snooker)
Content:  These matches were played in Haikou on 10 March 2014.
Title: 2013 World Open (snooker)
Content:  These matches were held between 18 and 21 December 2012 at the World Snooker Academy in Sheffield, England.
Title: World Open (snooker)
Content:  The World Open is currently shown live on Eurosport. Prior to the event moving to China, it was aired extensively on the BBC, ever since 1984. ITV4 televised the event in 2013.
Title: 2014 World Open (snooker)
Content:  These matches were played on 13 and 14 December 2013 at the Barnsley Metrodome in Barnsley, England. All matches were best of 9 frames.

Question: where is the snooker world open currently held?
Answer: Hainan International Exhibition Center.
Haikou.