EX-21.1 4 amkr123123ex211.htm EX-21.1
Exhibit 21.1
AMKOR TECHNOLOGY, INC.
LIST OF SUBSIDIARIES

Subsidiary |  | Jurisdiction of Organization
Amkor Advanced Technology Taiwan, Inc. |  | Taiwan
Amkor Assembly & Test (Shanghai) Co., Ltd. |  | China
Amkor Technology Arizona, Inc. |  | Arizona
Amkor Technology Euroservices, S.A.S. |  | France
Amkor Technology Germany GmbH |  | Germany
Amkor Technology Japan, Inc. |  | Japan
Amkor Technology Korea, Inc. |  | Korea
Amkor Technology Limited |  | Cayman Islands
Amkor Technology Malaysia Sdn. Bhd. |  | Malaysia
Amkor Technology Philippines, Inc. (A Branch of a Singapore Company) |  | Philippines
Amkor Technology Singapore Investment Pte. Ltd. |  | Singapore
Amkor Technology Singapore Holding Pte. Ltd. |  | Singapore
Amkor Technology Singapore Holding Pte. Ltd., Taiwan Branch (A Branch of a Singapore Company) |  | Taiwan
Amkor Technology Taiwan Ltd. |  | Taiwan
Amkor Technology Vietnam Limited Liability Company |  | Vietnam
Amkor Worldwide Services LLC |  | Delaware
Amkor Worldwide Services LLC - ROHQ (A Branch of a United States Company) |  | Philippines
ATEP - Amkor Technology Portugal, S.A. |  | Portugal
Guardian Assets, Inc. |  | Delaware