Zhang Investor Law announces a class action lawsuit on behalf of shareholders who bought shares of Champignon Brands Inc. between March 27, 2020 and February 17, 2021, inclusive . To join the class action, go to or call Sophie Zhang, Esq. toll-free at 800-991-3756 or email info@zhanginvestorlaw.com for information on the class action. 如果您想加入这个集体诉讼案,请在这里提交您的信息。 If you ...