The City of Light and the Île-de-France are mounting a recovery after attacks across France in 2015 and 2016 frightened away visitors.
Taxi drivers warn they will take the tournament "hostage" if private hire cabs are not regulated.
The French capital was the place to be on April Fools' Day.
The hoteliers union says the November attacks "dashed the spirits" of visitors.
Li Jinyuan of Tiens Group treated his employees to an all-expenses getaway for the company's 20th anniversary.