UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 ___________________________________________ Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock (par value $.01 per share) CDE New York Stock Exchange Emerging growth company ☐ FORM 10-Q ___________________________________________ ☑ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2021 OR ☐ Transition Report Pursuant to ...