estate among others; and the previous branches included heavy industry, passenger transportation, construction, and a stockbroking business. The nature of the South Korean chaebeol system involves nepotism. A series of incidents involving Korean Air in the 2000s have "revealed an ugly side of the culture within chaebeols, South Korea's giant family-run conglomerates". Hotel ownership Korean Air owns five hotels: two KAL hotels on Jeju island, the Hyatt in Incheon; Waikiki Resort in Hawaii, and a hotel/office building called the Wilshire Grand Tower in Los Angeles. This building in downtown Los Angeles houses the largest InterContinental Hotel in the Americas in what is the tallest building in Los Angeles. Aerospace research and manufacturing Korean Air is also involved in aerospace research and manufacturing. The division, known as the Korean Air Aerospace Division (KAL-ASD), has manufactured licensed versions of the MD Helicopters MD 500 and Sikorsky UH-60 Black Hawk helicopters, as well as the Northrop F-5E/F Tiger II fighter aircraft, the aft fuselage and wings for the KF-16 fighter aircraft manufactured by Korean Aerospace Industries and parts for various commercial aircraft including the Boeing 737, Boeing 747, Boeing 777 and Boeing 787 Dreamliner; and the Airbus A330 and Airbus A380. In 1991, the division designed and flew the Korean Air Chang-Gong 91 light aircraft. KAA also provides aircraft maintenance support for the United States Department of Defense in Asia and maintains a research division with focuses on launch vehicles, satellites, commercial aircraft, military aircraft, helicopters, and simulation systems. In October 2012, a development deal between Bombardier Aerospace and a government-led South Korean consortium was announced, aiming to develop a 90-seat turboprop regional airliner, targeting a 2019 launch date. The consortium would have included Korea Aerospace Industries and Korean Air. While this plan did not come to fruition, in 2019, Korean Aerospace Industries nevertheless decided to conduct a two-year study to assess the feasibility of taking the lead on building a turboprop airliner. Destinations Codeshare agreements Korean Air has codeshare agreements with the following airlines: Aeroflot Aerolíneas Argentinas Aeroméxico Air Europa Air France Air Tahiti Nui Alaska Airlines American Airlines Aurora China Airlines China Eastern Airlines China Southern Airlines Czech Airlines Delta Air Lines (Joint Venture Partners) Emirates Etihad Airways Garuda Indonesia Gol Transportes Aéreos Hainan Airlines Hawaiian Airlines Japan Airlines Jin Air (Subsidiary) Kenya Airways KLM LATAM Brasil LATAM Chile LATAM Perú Malaysia Airlines MIAT Mongolian Airlines Myanmar Airways International Rossiya Airlines