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Intellectual Property Management Policy and Goals

To remain a world-leading technology provider, ºìÁì½í³Ô¹Ï., Ltd. (ºìÁì½í³Ô¹Ï) shall continuously focus on research, development and innovation; formulate an intellectual property (¡°IP¡±) strategy in alignment with its operation and R&D strategies; establish a set of operating model which can effectively utilize the IP rights ºìÁì½í³Ô¹Ï owns to promote various business interests, so as to not only appropriately protect R&D results and enhance the company's competitiveness, but also to ensure the freedom of operation of ºìÁì½í³Ô¹Ï and maximize shareholder benefits.

ºìÁì½í³Ô¹Ï closely integrates IP management with business operations, taking steps from market insight, R&D investment to IP management and utilization, forming a value cycle that spans the entire ASE group and continues to innovate.

• Driving R&D: In response to the forward-looking market demands, ºìÁì½í³Ô¹Ï coordinates on the plan of group-wide R&D activities, continuously investing in talent and resources to maintain technology leadership to deploy future business opportunities.

• Protecting R&D Results: Through a well-structured internal application filing and review procedure, each department¡¯s R&D results can be efficiently transformed into patents, trade secrets and other forms of intellectual property that are incorporated into the group¡¯s unified IP database to consolidate core assets.

• Creating Value: Utilization of a high-value IP portfolio that supports our subsidiaries in securing customer orders, expanding new business opportunities and building group-wise overall defensive barriers to prevent technology from misappropriation and respond to external challenges, securing freedom of operation to ultimately form sustainable positive cycle.

ºìÁì½í³Ô¹Ï considers IP risks as a critical component of operation risk and has established corresponding governance and response mechanisms.

• Internal Risks: To prevent the leakage of proprietary technologies or trade secrets, we reinforce security management through technical measures such as information system controls and facility access management, while embedding IP protection into our corporate culture. Regular training and drills strengthen employees¡¯ awareness, and knowledge management and access control mechanisms are implemented for core personnel transitions.

• External Risks: ºìÁì½í³Ô¹Ï respects the legitimate intellectual property rights of others and have established monitoring and early-warning mechanisms for patents of competitors to reduce the risk of unintentional infringement of rights of others in the course of independent development.

Risk Response and Handling

• Responding to Infringement: When our intellectual property rights are infringed, ºìÁì½í³Ô¹Ï initiates investigation and evidence-collection procedures and takes actions, including legal proceedings, to safeguard our rights.

• Responding to Accusations: When facing infringement claims from third parties, ºìÁì½í³Ô¹Ï strategically obtain necessary licenses, reviews own high-quality patents for cross-license negotiation, or chose various alternative dispute resolution mechanisms to ensure uninterrupted operations.

This Intellectual Property Management Plan is coordinated by the responsible unit at ºìÁì½í³Ô¹Ï responsible for coordinating and integrating IP-related activities and R&D resources of each of subsidiaries and the implementation status is reported to the Board of Directors annually. ºìÁì½í³Ô¹Ï is committed to allocating sufficient personnel and budgetary resources to support this management plan that implements effectively, ensuring IP strategies that aligned with company¡¯s long-term development goals.

With respect to patent management, ºìÁì½í³Ô¹Ï adheres to management vision that patent quantity, quality and value are equally weighted and three major strategic directions that ¡°overall portfolio planning, separation of inferiority from premium and appreciation & activation¡± are proactively adopted to strengthen the competitiveness and market influence of our assets. To enhance employees¡¯ awareness of patent and execution of patent protection, ºìÁì½í³Ô¹Ï has implemented comprehensive foundational training on patent and specifically for core R&D teams, the trainings on the critical success factors of high-value patents are further introduced to ensure patent proposals that focus on technological development strategies and are with commercial potentials in future. In addition to offering patent incentives and on annual basis, a recognition ceremony for outstanding inventors is organized and the such incentive mechanism that advances the time shall continuously inspire innovation momentum and energy for patent proposal. To ensure patent portfolio that is forward-looking and comprehensive, ºìÁì½í³Ô¹Ï takes advantage of publicly available patent information to regularly conduct patent analyses and update reports for key technology fields that are reported to and supporting decision-making level to acquire technology trends and competition dynamics. To effectively maintain and protect patent rights, ºìÁì½í³Ô¹Ï conducts periodic patent value assessments and takes appropriate corresponding actions based on assessment results to achieve the goal to optimize resources. ºìÁì½í³Ô¹Ï also continuously monitors market developments and actively formulates patent utilization strategies to promote technology appreciation and commercial activation, further strengthening our competitive advantage in aspects of business operations. ºìÁì½í³Ô¹Ï¡¯s patent portfolios comprise a variety of technologies related to semiconductor packaging and testing, and electronics manufacturing. As of January 31, 2025, we held 2,077 Taiwan patents, 2,030 U.S. patents, 2,189 P.R.C., patents, 87 Europe patents and 50 patents in other countries related to various semiconductor packaging technologies and invention utility and design on our EMS. In addition, as of January 31, 2025, we also had a total of 2,351 pending patent applications, of which 296 in Taiwan, 643 in the U.S., 1,353 in P.R.C., 43 in Europe and 16 in other countries.

In terms of trade secrets management, ºìÁì½í³Ô¹Ï is devoted to establishing trade secret registration management system that collocates with the comprehensive secrecy policy, protecting company¡¯s core competitive advantage in all aspects. ºìÁì½í³Ô¹Ï carries out annual on-line training for all employees, continues to direct them to secure confidential information and foster subject-specific course and propaganda of non-infringement of IP for R&D and engineering departments, enhancing protection of ºìÁì½í³Ô¹Ï¡¯s trade secret and preventing the risk of infringement. ºìÁì½í³Ô¹Ï implements an interview mechanism in the employee resignation process for Legal department to interview with employee who will resign and alert such employee to continue to fulfill confidentiality obligations after the resignation and enhance management mechanism to reduce the risks of information leakage.??ºìÁì½í³Ô¹Ï and its subsidiaries collaborate to develop group corporate strategy for protecting critical technologies that effect industry leadership and adopt unified management guidance to enhance the confidentiality control of high value trade secret involved in the process of cooperating with customers and suppliers, continuing to maintain ºìÁì½í³Ô¹Ï¡¯s competitiveness and protect the best interests of shareholder. In order to improve trade secret management and coordinate government that enhances control of national core technologies, ºìÁì½í³Ô¹Ï adopts a policy of protection of national core technologies and trade secret that enhances law compliance and effectively protects intellectual property to increase the core competitiveness of ºìÁì½í³Ô¹Ï and its subsidiaries and protect the best interests of shareholders, customers and other stakeholders. Respective subsidiaries authorize a department responsible to implement management of trade secret grading, enhance the process of disclosure control and confidentiality measures and establish a reward system to encourage employees to innovate, securing company's core competitive advantages.

ºìÁì½í³Ô¹Ï will continue to strengthen trademark management, enhance management mechanisms at all stages of trademark acquisition, protection, maintenance, and use, and improve management specifications and processes that effectively secure trademark rights and avoid trademark-related risks, so as to effectively secure company's trademark rights and defend the company's goodwill.

ºìÁì½í³Ô¹Ï has applied and registered several trademarks in Taiwan, the United States, China and the EU. The following trademarks are registered in Taiwan. This is a non-exclusive list of ºìÁì½í³Ô¹Ï¡¯s trademarks and any name, service mark or logo that has been used for or incorporated into ºìÁì½í³Ô¹Ï¡¯s services but not specified in the foregoing list shall not constitute a waiver of ºìÁì½í³Ô¹Ï¡¯s trademark or other intellectual property rights over that name or logo.

At least once a year, the foregoing IP management plan and implementation status are reported to the Board of Directors and the improvement measures are proposed in response to the Board¡¯s recommendations. The last reporting date was October 15, 2025.

Advanced Semiconductor Engineering, Inc., a subsidiary of the company, filed an application for the renewal of Taiwan Intellectual Property Management System (TIPS) AA Class certification in 2024. The renewal of TIPS certification (AA Class) was valid for another 2-year-term until December 31, 2026. Additionally, Siliconware Precision Industries Co., Ltd. and Universal Scientific Industrial Co., Ltd. also obtained the Taiwan Intellectual Property Management System (TIPS) A Class certification, with their certificates valid until December 31, 2025.