• TYK Medicines filed suit in Changxing County court against Huiyu, seeking a ruling that purported TY-9591 cooperation and distribution agreements were never formed and are invalid.
• Huiyu also filed a related case in Neijiang Shizhong District court over the same documents; both cases have been accepted but not yet heard.
• TYK said preliminary legal advice supports contesting the agreements’ formation and validity; it plans to take steps to protect its interests.
• The company said the proceedings have not had a material adverse impact on business, operations, or cash flow; operations remain normal.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. TYK Medicines Inc. published the original content used to generate this news brief via IIS, the regulatory disclosure system operated by the Hong Kong Stock Exchange (HKex) (Ref. ID: HKEX-EPS-20260722-12253203), on July 22, 2026, and is solely responsible for the information contained therein.