 Los Angeles, California--Newsfile Corp. - June 1, 2021 - The Schall Law Firm, a national shareholder rights litigation firm, announces that it is investigating claims on behalf of investors of Tarena International, Inc. Tarena or the Company NASDAQ: TEDU for violations of the securities laws.The investigation focuses on whether the Company issued false andor misleading statements andor failed to disclose information pertinent to investors. Tarena filed a Form NT 20-F Notification of inability to timely... 