UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 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, 2018 or ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 or ☐ Shell Company report pursuant to Section 13 or 15 (d) of the Securities Exchange Act of 193 ...