SK Telecom Co., South Korea's top wireless carrier, said Tuesday it will speed up the development of urban air mobility (UAM) services. In 2020, South Korea unveiled its plan to commercialize UAM services by 2025 to help overcome urban traffic congestion by using unmanned drone taxis. Last year, SK Telecom signed a partnership with local defense company Hanwha Systems Co., Korea Airports Corp. and the Korea Transport Institute to develop the infrastructure and aircraft required for UAM service