NAME OF ENTITY

JURISDICTION OF INCORPORATION

CHIEF Telecom Inc.

Taiwan, ROC

CHYP Multimedia Marketing & Communications Co., Ltd. (formerly known as Chunghwa International Yellow Pages Co., Ltd.)

Taiwan, ROC

Chunghwa Investment Co., Ltd.

Taiwan, ROC

Chunghwa Precision Test Tech. Co., Ltd.

Taiwan, ROC

Chunghwa System Integration Co., Ltd.

Taiwan, ROC

Light Era Development Co., Ltd.

Taiwan, ROC

Senao International Co., Ltd.

Taiwan, ROC

Spring House Entertainment Tech. Inc.

Taiwan, ROC

Unigate Telecom Inc.

Taiwan, ROC

Honghwa International Co., Ltd.

Taiwan, ROC

Prime Asia Investments Group Ltd.

British Virgin Islands

Donghwa Telecom Co., Ltd.

Hong Kong

Senao International HK Limited

Hong Kong

Chunghwa Hsingta Co., Ltd.

Hong Kong

Chunghwa Telecom Japan Co., Ltd.

Japan

CHPT Japan Co., Ltd.

Japan

Chief International Corp.

Samoa Islands

Senao International (Samoa) Holding Ltd.

Samoa Islands

Chunghwa Precision Test Tech. International, Ltd.

Samoa Islands

Chunghwa Telecom (China), Co., Ltd.

People’s Republic of China

Chunghwa Telecom Singapore Pte., Ltd.

Singapore

Chunghwa Telecom Global, Inc.

United States of America

Chunghwa Precision Test Tech USA Corporation

United States of America

Chunghwa Telecom Vietnam Co., Ltd.

Vietnam

Chunghwa Sochamp Technology Inc.

Taiwan, ROC

Smartfun Digital Co., Ltd.

Taiwan, ROC

Senao Trading (Fujian) Co., Ltd.

People’s Republic of China

Senao International Trading (Shanghai) Co., Ltd.

People’s Republic of China

Senao International Trading (Jiangsu) Co., Ltd.

People’s Republic of China

Jiangsu Zhenhua Information Technology Company, LLC.

People’s Republic of China

Shanghai Taihua Electronic Technology Limited

People’s Republic of China

Youth Co., Ltd.

Taiwan, R.O.C.

Aval Technologies Co., Ltd.

Taiwan, R.O.C.

ISPOT Co., Ltd.

Taiwan, R.O.C.

Youyi Co., Ltd.

Taiwan, R.O.C.

Shanghai Chief Telecom Co., Ltd.

People’s Republic of China

Chunghwa Leading Photonics Tech Co., Ltd.

Taiwan, R.O.C.

Chunghwa Telecom (Thailand) Co., Ltd.

Thailand

CHT Security Co., Ltd.

Taiwan, R.O.C.

SENYOUNG Insurance Agent Co., Ltd.

Taiwan, R.O.C.

Taoyuan Asia Silicon Valley Innovation Co., Ltd.

Taiwan, R.O.C.