X0306 4 2017-05-16 0 0001455684 TPI COMPOSITES, INC TPIC 0001258525 HUGHES JAMES ALTON 8501 NORTH SCOTTSDALE ROAD, GAINEY CENTER II, SUITE 100 SCOTTSDALE AZ 85253 1 0 0 0 Restricted Stock Units 2017-05-16 4 A 0 3740 0.00 A Common Stock 3740 3740 D Each restricted stock unit ("RSU") represents a contingent right to receive one share of Common Stock. All unvested RSUs will automatically expire upon the Reporting Person's termination of service from the Issuer. The RSUs shall vest in full on the first year anniversary of the grant date; provided, that the Reporting Person continues to provide service to the Issuer through the vesting date. The Reporting Person was granted the RSUs on the date of the Issuer's annual stockholder meeting pursuant to the Issuer's Non-Employee Director Compensation Policy. /s/ Steven G. Fishbach, Attorney-in-Fact 2017-05-18