[20-F FORM FISCAL YEAR ENDED DECEMBER 31, 2017 TABLE OF CONTENTS Page Supplemental Information 1 1 PART I 2 Item 1. Identity of Directors, Senior Management and Advisers 2 Item 2. Offer Statistics and Expected Timetable 2 Item 3. Key Information 2 Item 4. Information on the Company 18 Item 4A. Unreso]