SYUT [Synutra International] SC 13D/A: CUSIP No.: 87164C 10 2 1. Names of
[CUSIP No.: 87164C 10 2 1. Names of Reporting Persons Warburg Pincus Private Equity IX, L.P. 2. Check the Appropriate Box if a Member of a Group (See Instructions) ¨ x (a) 3. SEC Use Only 4. Source of Funds (See Instructions) N/A 5. ¨]