Primary IR Contact

Chris Chaney
Vice President, Investor Relations
Phone: (480) 786-7594
Email: chris.chaney@amkor.com

Transfer Agent

Computershare
P.O. Box 50500
Louisville, KY 40233

Accountants

PricewaterhouseCoopers LLP
1850 North Central Avenue
Phoenix, AZ 84004
Phone: (602) 364-8000

Legal

Gil C. Tily
EVP, Chief Administrative Officer, General Counsel and Corporate Secretary
Amkor Technology, Inc.
2045 East Innovation Circle
Tempe, AZ 85284