Table of Contents As filed with the Securities and Exchange Commission on April 24, 2020 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 20-F (Mark One) | ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 | | --- | | OR | | ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 | | For the fiscal year ended December 31, 2019 | | OR | | ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURIT ...