About the Company


About ASE Technology Holding, Co., Ltd.

ASE Technology Holding Co (ASEH) combines the strengths and expertise of Advanced Semiconductor Engineering, Inc. (ASE), Siliconware Precision Industries Co., Ltd. (SPIL) and USI Inc. (USI) to create valuable synergy that benefits the semiconductor industry. Leveraging on the scale of the combined entity and bold innovations that allow the group to stay ahead of the technology curve, ASEH’s continued pursuit of Heterogeneous Integration (HI) continues to drive the momentum in the digital era. The rise of 5G is transforming the world of smart digital applications, and ASEH’s leadership in system integration is paving the way with competitive solutions that offer miniaturization, high performance, complex integration and superior quality.


ASE Technology Holding is the leading provider of semiconductor manufacturing services in assembly and test. ASEH develops and offers complete turnkey solutions covering front-end engineering test, wafer probing, IC packaging and modules, materials, final test, system and board level integration and, electronic design and manufacturing services (EMS).

ASE Technology Holding follows the highest corporate governance standards and implements sustainable business philosophies. As an integral member of the semiconductor value chain, we develop dynamic strategies that enable us to recruit global talent and procure resources within a competitive global landscape. To achieve our sustainable development goals for the greater good of society and the environment, we continue to invest in innovation and explore strategic alliance opportunities that extend our impact across the ecosystem.

We employ over 95,000 employees across the world, and operate manufacturing facilities in Taiwan, China, South Korea, Japan, Singapore, Malaysia, Vietnam, Mexico, United States, Poland, France, United Kingdom, Germany, Tunisia and Czech Republic.

Value Creation Model

The ASEH Value Creation Model was instituted to align with our mission and vision, as well as to maintain our industry leadership and innovation. The VCM was formed using the sustainability and value creation indicators determined by the management team and business units. Leveraging on long term industry trends, the model enables ASE to respond to future challenges through our 3 key strategies - Integrate, Expand and Innovate. The VCM also forms the basis of incorporating Sustainability into our business strategy.




June. ASE and SPIL entered into a Joint Share Exchange Agreement, with both companies’ board of directors approving the formation of ASE Technology Holding Co., Ltd.


February 12. ASE and SPIL held Extraordinary General Meetings respectively. The proposed Joint Share Exchange plan was approved, allowing ASE Technology Holding to acquire all the shares of ASE and SPIL.

April 30. ASE Technology Holding listed on the Taiwan Stock Exchange (TWSE code: 3711) and the New York Stock Exchange (NYSE code: ASX) through the issue of ADRs.

Members of ASE Technology Holding Co., Ltd.

Advanced Semiconductor Engineering Inc. & Siliconware Precision Industries Co., Ltd. Leading providers of semiconductor assembly and test services.

USI Inc. A leading electronic design and manufacturing service provider.