More Transtech Optelecom Science Holdings Limited news Transtech Optelecom Science Holdings LimitedHKEX: 9963 High concentration of shareholding Jun 25, 2026 at 2:05 PM UTC · Issued by Transtech Optelecom Science Holdings Limited via HKEXnews As issuedPlain English Transtech Optelecom Science Holdings Limited (9963) Press ReleaseView Attachment