Sunlands Technology Group Submits Its Annual Report on Form 20-F

(SeaPRwire) –   BEIJING, April 24, 2026 — Sunlands Technology Group (NYSE: STG) (“Sunlands” or the “Company”), a leading provider in China’s adult online education and personal interest learning sectors, today declared the filing of its annual report on Form 20-F for the fiscal year ended December 31, 2025. The report was submitted to the U.S. Securities and Exchange Commission (the “SEC”) on April 24, 2026, U.S. Eastern Time.

The report is available for review on the Company’s investor relations website at https://ir.sunlands.com and on the SEC’s website at www.sec.gov. Shareholders and ADS holders can request a complimentary hard copy of the annual report, which includes the audited consolidated financial statements. Such requests should be sent to sl-ir@sunlands.com.

About Sunlands

Sunlands Technology Group (NYSE: STG) (“Sunlands” or the “Company”), previously named Sunlands Online Education Group, is a market leader in adult online education and personal interest learning in China. Through its one-to-many live streaming platform, the Company provides a range of post-secondary courses for degrees and diplomas, alongside professional certification programs, skill development, and personal interest classes. Services are accessible via PC or mobile applications. The platform fosters a customized and interactive educational experience through a virtual learning community and an extensive library of content tailored to student learning patterns. A distinctive feature of Sunlands’ R&D is the organization of subject matter into Learning Outcome Trees, its proprietary knowledge management system. The Company is deeply attuned to the educational objectives of its students and delivers solutions to facilitate their success.

For more information, please visit https://ir.sunlands.com.

For investor and media inquiries, please contact:

Sunlands Technology Group
Investor Relations
Email: sl-ir@sunlands.com

SOURCE: Sunlands Technology Group