 Los Angeles, California--Newsfile Corp. - October 26, 2020 - The Schall Law Firm, a national shareholder rights litigation firm, announces the filing of a class action lawsuit against Braskem S.A. NYSE: BAK Braskem or the Company for violations of 10b and 20a of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder by the U.S. Securities and Exchange Commission.Investors who purchased the Companys securities between May 6, 2016 and July 8, 2020,... 