Original sentence: The city forms the heart of the country's industrial area called the Ulsan Industrial District.The city hosts the K-League football club Ulsan Hyundai Horang-i (Ulsan Hyundai Tigers), who, after the World Cup of 2002, relocated from their former stadium in Jung-gu, which is now a municipal ground, to the Munsu Stadium, which hosted several matches in the World Cup.The city is home to another soccer team, Ulsan Hyundai Mipo Dockyard, which plays in the National League.Ulsan is also home to the University of Ulsan.Ulsan would have been the 3rd richest economy in the world if ranked.also Ulsan is the richest region in South Korea, In 2007, Ulsan's GDP (PPP) per capita was estimated at $58,665
Edited sentence: In 2007, Ulsan had a GDP per capita of $58,665, the highest by far in South Korea.It is also home to the University of Ulsan.It would have been the world's third wealthiest economy if ranked, being richer than Norway, Singapore, United States, Hong Kong and Switzerland.The city hosts the K-League football club Ulsan Hyundai Horang-i (Ulsan Hyundai Tigers), who, after the 2002 FIFA World Cup, relocated from their former stadium in Jung-gu, which is now a municipal ground, to the Munsu Stadium, which hosted several matches during the 2002 World Cup.Ulsan is home to another soccer team, Ulsan Hyundai Mipo Dockyard, which plays in the Korea National League.Ulsan is the industrial powerhouse of South Korea, forming the heart of the Ulsan Industrial District, which is home to the world's largest automobile assembly plant operated by Hyundai Motor Company, the world's largest shipyard operated by Hyundai Heavy Industries and the world's second largest oil refinery owned by SK Energy