BEIJING, June 20, 2025 /PRNewswire/ -- So-Young International Inc. (Nasdaq: SY) ("So-Young" or the "Company"), the leading aesthetic treatment platform in China connecting consumers with online services and offline treatments, today announced that it is amending the effective date for the previously announced plan for an ADS ratio change.The Company previously planned to change the ratio of the American depositary shares ("ADSs") to its Class A ordinary shares from thirteen (13) ADSs representing ten (10) C ...