Exhibit 99.1 UCLOUDLINK GROUP INC. Announces Unaudited First Quarter 2023 Financial Results Hong Kong, May 18, 2023 – UCLOUDLINK GROUP INC. ("UCLOUDLINK" or the "Company") (NASDAQ: UCL), the world's first and leading mobile data traffic sharing marketplace, today announced its unaudited financial results for the three months ended March 31, 2023. First Quarter 2023 Financial Highlights ● Total revenues were US$18.0 million, representing an increase of 15.3% from US$15.6 million in the first quarter of 2022. ...

Share Ownership and Voting Power - MediaPlay Limited beneficially owned 16.6% of the Company's total outstanding shares and held 44.3% of the Company's aggregate voting power as of February 28, 2023 [4] - AlphaGo Robot Limited beneficially owned 16.4% of the Company's total outstanding shares and held 43.8% of the Company's aggregate voting power as of February 28, 2023 [5] - Entities affiliated with Haitong beneficially owned 8.3% of the Company's total outstanding shares and held 1.5% of the Company's aggregate voting power as of February 28, 2023 [6] - Entities affiliated with Cash Capital beneficially owned 10.1% of the Company's total outstanding shares and held 1.8% of the Company's aggregate voting power as of February 28, 2023 [7]

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, 2022. 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 1 ...

uCloudlink Group Inc. (NASDAQ:UCL) Q4 2022 Earnings Conference Call March 15, 2023 8:30 AM ET Company Participants Jillian Zeng – Investor Relations Chaohui Chen – Co-Founder and Chief Executive Officer Yimeng Shi – Chief Financial Officer Conference Call Participants Theodore O'Neill – Litchfield Hills Research Vivian Zang – Diamond Research Operator Good morning, and welcome to the uCloudlink Group Inc. Fourth Quarter and Full Year 2022 Earnings Conference Call. All participants will be in listen-only mod ...

(Nasdaq: UCL) 4Q and Full Year 2022 Earnings Conference Call Presentation of this line of this line Disclaimer (Nasdaq: UCL) By viewing, accessing, or participating in this presentation, you agree to be bound by the following limitations. Any failuretocomply with these restrictions may constitute a violation of applicable securities laws. ThispresentationhasbeenpreparedbyUCLOUDLINKGROUPINC. (the“Company”)solelyforinformationpurposes.Thispresentationdoesnotconstituteanoffertosellorissueoraninvitationto purch ...

uCloudlink Group Inc. (NASDAQ:UCL) Q3 2022 Earnings Conference Call November 16, 2022 8:30 AM ET Company Participants Jillian Zeng - Investor Relations Chaohui Chen - Co-Founder and Chief Executive Officer Yimeng Shi - Chief Financial Officer Conference Call Participants Vivian Zhang - Diamond Equity Research Operator Hello, and welcome to the uCloudlink Group Inc. Third Quarter 2022 Earnings Conference Call. All participants will be in a listen-only mode. [Operator Instructions] After today's presentation, ...

uCloudlink Group Inc. (NASDAQ:UCL) Q2 2022 Earnings Conference Call August 24, 2022 8:30 AM ET Company Participants Jillian Zeng - Investor Relations Chaohui Chen - Co-Founder and Chief Executive Officer Yimeng Shi - Chief Financial Officer Conference Call Participants Vivian Zhang - Diamond Equity Operator Hello, and welcome to the uCloudlink Group Inc. Second Quarter 2022 Earnings Conference Call. All participants will be in a listen-only mode. [Operator Instructions] After today's presentation, there wil ...