Koolearn Technology Holding is a company that provides online education services to colleges, k12, and pre-schools. Its college education segment offers college and overseas test preparation courses to college students and working professionals, the K12 Education segment provides after-school tutoring and preparation courses for high school and national college entrance exams, and the pre-school Education segment offers online educational content delivered through its donut English-learning and child education apps. The company caters to software, technology, and pre-recorded online education packages to institutional customers, including universities, public libraries, telecom operators, and online video streaming service providers.