Subsidiaries included in consolidated financial statements were as follows:

Establishment and

Percentage of

Ownership (%)

December 31

Name of Investee

Main Businesses

Operating Location

2017

2018

ASE

Engaged in the packaging and testing of semiconductors

Kaohsiung, R.O.C.

100.0

A.S.E. Holding Limited

Holding company

Bermuda

100.0

J & R Holding Limited (“J&R Holding”)

Holding company

Bermuda

100.0

Innosource Limited

Holding company

British Virgin Islands

100.0

Omniquest Industrial Limited

Holding company

British Virgin Islands

100.0

ASE Marketing & Service Japan Co., Ltd.

Engaged in marketing and sales services

Japan

100.0

ASE Test, Inc.

Engaged in the testing of semiconductors

Kaohsiung, R.O.C.

100.0

Luchu Development Corporation

Engaged in the development of real estate properties

Taipei, R.O.C.

86.1

TLJ Intertech Inc. (“TLJ”)

Engaged in information software services

Taipei, R.O.C.

60.0

MingFung Information Service Corp., Ltd.

Engaged in information software services, and was established in May 2018.

Taipei, R.O.C.

100.0

Alto Enterprises Limited

Holding company

British Virgin Islands

100.0

Super Zone Holdings Limited

Holding company

Hong Kong

100.0

ASE (Kun Shan) Inc.

Engaged in the packaging and testing of semiconductors

Kun Shan, China

100.0

ASE Investment (Kun Shan) Limited

Holding company

Kun Shan, China

100.0

Advanced Semiconductor Engineering (China) Ltd.

Will engage in the packaging and testing of semiconductors

Shanghai, China

100.0

ASE Investment (Labuan) Inc.

Holding company

Malaysia

100.0

ASE Test Limited (“ASE Test”)

Holding company

Singapore

100.0

ASE (Korea) Inc. (“ASE Korea”)

Engaged in the packaging and testing of semiconductors

Korea

100.0

J&R Industrial Inc.

Engaged in leasing equipment and investing activity

Kaohsiung, R.O.C.

100.0

ASE Japan Co., Ltd. (“ASE Japan”)

Engaged in the packaging and testing of semiconductors

Japan

100.0

ASE (U.S.) Inc.

After-sales service and sales support

U.S.A.

100.0

Global Advanced Packaging Technology Limited

Holding company

British Cayman Islands

100.0

ASE WeiHai Inc.

Engaged in the packaging and testing of semiconductors

Shandong, China

100.0

Establishment and

Percentage of

Ownership (%)

December 31

Name of Investee

Main Businesses

Operating Location

2017

2018

Suzhou ASEN Semiconductors Co., Ltd. (“ASEN”)

Engaged in the packaging and testing of semiconductors

Suzhou, China

60.0

70.0

Anstock Limited

Engaged in financing activity

British Cayman Islands

100.0

Anstock II Limited

Engaged in financing activity

British Cayman Islands

100.0

ASE (Shanghai) Inc.

Engaged in the production of substrates

Shanghai, China

100.0

ASE Corporation

Holding company

British Cayman Islands

100.0

ASE Mauritius Inc.

Holding company

Mauritius

100.0

ASE Labuan Inc.

Holding company

Malaysia

100.0

Shanghai Ding Hui Real Estate Development Co., Ltd.

Engaged in the development, construction and sale of real estate properties

Shanghai, China

100.0

Shanghai Ding Qi Property Management Co., Ltd.

Engaged in the management of real estate properties

Shanghai, China

100.0

Advanced Semiconductor Engineering (HK) Limited

Engaged in the trading of substrates

Hong Kong

100.0

Shanghai Ding Wei Real Estate Development Co., Ltd.

Engaged in the development, construction and leasing of real estate properties

Shanghai, China

100.0

Shanghai Ding Yu Real Estate Development Co., Ltd.

Engaged in the development, construction and leasing of real estate properties

Shanghai, China

100.0

Shanghai Ding Fan Department Store Co., Ltd.

Engaged in department store business

Shanghai, China

100.0

Kun Shan Ding Hong Real Estate Development Co., Ltd.

Engaged in the development, construction and leasing of real estate properties

Kun Shan, China

100.0

Shanghai Ding Xu Property Management Co., Ltd.

Engaged in the management of real estate properties

Shanghai, China

100.0

ASE Electronics Inc.

Engaged in the production of substrates

Kaohsiung, R.O.C.

100.0

ASE Test Holdings, Ltd.

Holding company

British Cayman Islands

100.0

ASE Holdings (Singapore) Pte. Ltd.

Holding company

Singapore

100.0

ASE Singapore Pte. Ltd.

Engaged in the packaging and testing of semiconductors

Singapore

100.0

ISE Labs, Inc.

Engaged in the testing of semiconductors

U.S.A.

100.0

ASE Electronics (M) Sdn. Bhd.

Engaged in the packaging and testing of semiconductors

Malaysia

100.0

ASE Assembly & Test (Shanghai) Limited

Engaged in the packaging and testing of semiconductors

Shanghai, China

100.0

Establishment and

Percentage of

Ownership (%)

December 31

Name of Investee

Main Businesses

Operating Location

2017

2018

ASE Trading (Shanghai) Ltd.

Liquidated in December 2018

Shanghai, China

100.0

ISE Labs, China, Ltd.

Engaged in the testing of semiconductors, and was established in October 2018

Shanghai, China

100.0

Wuxi Tongzhi Microelectronics Co., Ltd.

Engaged in the packaging and testing of semiconductors

Wuxi, China

100.0

USI Global

Engaged in investing activities, and was established in November 2018 and then dissolved in January 2019

Nantou, R.O.C.

100.0

USIINC

Engaged in investing activity

Nantou, R.O.C.

99.2

100.0

Huntington Holdings International Co., Ltd.

Holding company

British Virgin Islands

99.2

100.0

Unitech Holdings International Co., Ltd. (“UHI”)

Holding company

British Virgin Islands

99.2

100.0

Real Tech Holdings Limited

Holding company

British Virgin Islands

99.2

100.0

Universal ABIT Holding Co., Ltd.

In the process of liquidation

British Cayman Islands

99.2

100.0

Rising Capital Investment Limited

Holding company

British Virgin Islands

99.2

100.0

Rise Accord Limited

Holding company

British Virgin Islands

99.2

100.0

Universal Scientific Industrial (Kunshan) Co., Ltd.

Engaged in the manufacturing and sale of computer assistance system and related peripherals

Kun Shan, China

99.2

100.0

USI Enterprise Limited (“USIE”)

Engaged in the services of investment advisory and warehousing management

Hong Kong

96.9

95.4

Universal Scientific Industrial (Shanghai) Co., Ltd. (“USISH”)

Engaged in the designing, manufacturing and sale of electronic components

Shanghai, China

75.8

74.6

Universal Global Technology Co., Limited

Holding company

Hong Kong

75.8

74.6

Universal Global Technology (Kunshan) Co., Ltd.

Engaged in the designing and manufacturing of electronic components

Kun Shan, China

75.8

74.6

Universal Global Technology (Shanghai) Co., Ltd.

Engaged in the processing and sales of computer and communication peripherals as well as business in import and export of goods and technology

Shanghai, China

75.8

74.6

Universal Global Electronics (Shanghai) Co., Ltd.

Engaged in the sale of electronic components and telecommunications equipment

Shanghai, China

75.8

74.6

Establishment and

Percentage of

Ownership (%)

December 31

Name of Investee

Main Businesses

Operating Location

2017

2018

USI America Inc.

Engaged in the manufacturing and processing of motherboards and wireless network communication and provision of related technical service

U.S.A.

75.8

74.6

Universal Global Industrial Co., Limited

Engaged in manufacturing, trading and investing activity

Hong Kong

75.8

74.6

Universal Global Scientific Industrial Co., Ltd. (“UGTW”)

Engaged in the manufacturing of components of telecomm and cars and provision of related R&D services

Nantou, R.O.C.

75.8

74.6

Universal Scientific Industrial De Mexico S.A. De C.V.

Engaged in the assembling of motherboards and computer components

Mexico

75.8

74.6

USI Japan Co., Ltd.

Engaged in the manufacturing and sale of computer peripherals, integrated chip and other related accessories

Japan

75.8

74.6

USI Electronics (Shenzhen) Co., Ltd.

Engaged in the design, manufacturing and sale of motherboards and computer peripherals

Shenzhen, China

75.8

74.6

Universal Global Electronics Co., Ltd.

Engaged in accepting and outsourcing orders as well as sales of electronic components and service of technical advisory, and was established in February 2018

Hong Kong

74.6

Universal Scientific Industrial Co., Ltd. (“USI”)

Engaged in the manufacturing, processing and sale of computers, computer peripherals and related accessories

Nantou, R.O.C.

75.5

74.4

SPIL

Engaged in the assembly, testing and turnkey services of integrated circuits

Taichung, R.O.C.

100.0

SPIL (B.V.I.) Holding Limited

Engaged in investing activities

British Virgin Islands

100.0

Siliconware Investment Co., Ltd.

Engaged in investing activities

Taipei, R.O.C.

100.0

Siliconware USA, Inc.

Engaged in marketing activities

U.S.A.

100.0

Establishment and

Percentage of

Ownership (%)

December 31

Name of Investee

Main Businesses

Operating Location

2017

2018

SPIL (Cayman) Holding Limited

Engaged in investing activities

British Cayman Islands

100.0

Siliconware Technology (Suzhou) Limited

Engaged in the packaging and testing of semiconductors

Suzhou, China

70.0

Siliconware Electronics (Fujian) Co., Limited

Engaged in the packaging and testing of semiconductors

Fujian, China

100.0