BEIJING, May 14, 2021 /PRNewswire/ -- TuanChe Limited ("TuanChe" or the "Company") (NASDAQ: TC), a leading omni-channel automotive marketplace in China, today announced that it filed its annual report on Form 20-F for the fiscal year ended December 31, 2020 with the Securities and Exchange Commission on May 14, 2021. The annual report, which contains the Company's audited consolidated...