 BEIJING, May 25, 2021 PRNewswire -- Tarena International, Inc. NASDAQ: TEDU Tarena or the Company, a leading provider of professional education and K-12 education services in China, today announced its unaudited financial results for the first quarter ended March 31, 2021. First Quarter 2021 Highlights Net revenues increased by 80.9 year-over-year to RMB533.8 million US81.5 million, from RMB295.0 million in the same period of 2020. 