Exhibit 99.1 Shanghai (HQ) Suites 802, 505, 702, West Tower 88 Shangke Road, Pudong New District Shanghai, China United States Suite 710, 9801 Washingtonian Blvd Gaithersburg Maryland 20878 1 I-Mab Provides Business and Corporate Updates and Reports Financial Results for the Year Ended December 31, 2022 · Strategic reprioritization of the Company's pipeline to focus on key clinical assets and overall streamlining of corporate structure and workforce, resulting in a significant reduction in the cash burn rat ...

I-Mab (NASDAQ:IMAB) H1 2022 Earnings Conference Call August 30, 2022 9:15 AM ET Company Participants Tyler Ehler – Senior Director of Investor Relations Jingwu Zang – Founder, Chairman and Acting Chief Executive Officer Andrew Zhu – President John Long – Chief Financial Officer Conference Call Participants Kelly Shi – Jefferies Andres Maldonado – H.C. Wainwright Albert Lowe – Piper Tyler Ehler This is Tyler Ehler, I-Mab’s Senior Director of Investor Relations. At this time, all participants are in a listen- ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F (Mark One) ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(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 SECURITIES EXCHANGE ACT OF 1934 OR ☐ SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITI ...