Continuing the journey of excellence and shaping a climate resilient future with our supply chain partners

ASE Technology Holding Co., Ltd. (ASE Holdings. NYSE: ASX, TAIEX: 3711), held its annual Supplier Day today to extend the company’s appreciation to all its suppliers and to present awards to the outstanding suppliers of 2023. The event was attended by representatives from over 110 suppliers that serve ASE Holdings’ subsidiaries – ASE, SPIL, and USI. As the leader in semiconductor assembly, test, materials, system design and manufacturing, suppliers play a critical role in supporting ASE Holdings’ business strategy and growth.

“The ASE Holdings procurement organization has evolved significantly over the years. Today, we are directing our focus on consolidating resources and streamlining processes,” said Andrew Tang, Chief Procurement Officer of ASE Holdings. “Our goal is to transform the procurement function into a key driver of value for our customers and the industry, by fostering collaborative partnerships and innovative strategies with suppliers. This annual event serves as a platform for the company to express gratitude to our valued suppliers and to recognize outstanding ones with the supplier awards,” he continued.

ASE Holdings is steadfast in its dedication to promote sustainability across its supply chain. Over the past two years, the company has sponsored and guided 19 suppliers in obtaining ISO 14064 greenhouse gas emissions and ISO 14067 carbon footprint certifications. During the ceremony, ASE presented certificates of appreciation to the suppliers who have worked hard to achieve this certification.

At this year’s event, two suppliers were also honored with the distinguished Supplier Sustainability Award for 2023. The recipients submitted winning proposals on sustainable collaboration that align closely with ASE Holdings’ corporate sustainability strategy centered on the four key pillars of Low-Carbon, Circular, Inclusive, and Collaborative.

“We are currently navigating a new normal across the semiconductor business landscape. From shifting regional dynamics, resource dilution, talent disruptions to climate change, forward-thinking approaches are necessary to enhancing resilience,” said Tien Wu, Chief Operating Officer of ASE Holdings. “While we must continue to strengthen our ESG framework, we firmly believe that forming lasting, trust-based partnerships with suppliers who share our goals and values is foundational to long-term success and a more sustainable future for all. Once again, we congratulate all the winners of 2023 and look forward to setting new milestones of excellence together,” he continued.

The ASE Supplier Day is held annually as a platform for ASE Holdings and its suppliers to network and exchange information, as well as to honor the best-in-class suppliers of the past fiscal year. These companies supply ASE Holdings with goods and services ranging from equipment, raw materials, components to engineering, and various contract services. ASE Holdings will continue to steer the supply eco-system towards progress, resilience and co-prosperity, benefiting our environment, the economy, and the community.

Congratulations to the following award recipients* for their outstanding performance in FY2023.

• AblePrint Technology Co., Ltd.
• Advanced Recycling Pte Ltd
• Advantek Taiwan Inc.
• Grand Plastic Technology Corporation
• HD MicroSystems L.L.C.
• Kinsus Interconnect Technology Corp.
• Mitsui Chemicals ICT Materia, Inc.
• MK ELECTRON CO., LTD.
• Murata Manufacturing Co., Ltd.
• Namics Corporation
• Nan Ya PCB Co., Ltd.
• Onn Wah Tech (OWT) Pte. Ltd.
• Resonac Corporation
• Shinko Electric Industries Co., Ltd.
• Sumitomo Bakelite Co., Ltd.
• Teradyne (Asia) Pte. Ltd.
• Unimicron Technology Corporation
• Whitston Materials Technology Co., Ltd.
• Yang Ann Technology Corporation
• Zhen Ding Technology Co., Ltd.

Supplier Sustainability Award recipients* in FY2023

• Chiu Tze Chemical Tech Co., Ltd.
• Hwa Shu Enterprise Co., Ltd.

*The company names are listed in alphabetical order.

About ASE Technology Holding Co., Ltd.

ASE Technology Holding Co., Ltd. (ASEH) is among the leading providers of independent semiconductor manufacturing services in assembly, test, materials and system designs. As a global leader geared towards meeting the industry’s ever-growing needs for faster, smaller and higher performance chips, ASE Technology Holding develops and offers a wide portfolio of technology and solutions including IC test program design, front-end engineering test, wafer probe, wafer bump, substrate design and supply, wafer level package, flip chip, system-in-package, final test and electronic manufacturing services. For more information about ASEH, please visit www.aseglobal.com or Twitter/LinkedIn @aseglobal

Safe Harbor Notice

This press release contains "forward-looking statements" within the meaning of Section 27A of the United States Securities Act of 1933, as amended, and Section 21E of the United States Securities Exchange Act of 1934, as amended. These statements are made under the “safe harbor” provisions of the U.S. Private Securities Litigation Reform Act of 1995. Although these forward-looking statements, which may include statements regarding our future results of operations, financial condition or business prospects, are based on our own information and information from other sources we believe to be reliable, you should not place undue reliance on these forward-looking statements, which apply only as of the date of this press release. The words “anticipate,” “believe,” “estimate,” “expect,” “intend,” “plan” and similar expressions, as they relate to us, are intended to identify these forward-looking statements in this press release. These forward-looking statements are necessarily estimates reflecting the best judgment of our senior management and our actual results of operations, financial condition or business prospects may differ materially from those expressed or implied by the forward-looking statements for reasons including, among others, risks associated with cyclicality and market conditions in the semiconductor or electronic industry; changes in our regulatory environment, including our ability to comply with new or stricter environmental regulations and to resolve environmental liabilities; demand for the outsourced semiconductor packaging, testing and electronic manufacturing services we offer and for such outsourced services generally; the highly competitive semiconductor or manufacturing industry we are involved in; our ability to introduce new technologies in order to remain competitive; international business activities; our business strategy; our future expansion plans and capital expenditures; the strained relationship between the Republic of China and the People’s Republic of China; general economic and political conditions; the recent shift in United States trade policies; possible disruptions in commercial activities caused by natural or human-induced disasters; fluctuations in foreign currency exchange rates; and other factors. The announced results of the first quarter of 2024 are preliminary and subject to audit adjustments. For a discussion of these risks and other factors, please see the documents we file from time to time with the Securities and Exchange Commission, including the 2023 Annual Report on Form 20-F filed on April 3, 2024.

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