President Chain Store Corp (PCSC), a subsidiary of Uni-President Enterprises Corp is a retail and lifestyle services. The company is engaged in managing convenience stores, department stores, supermarkets, restaurants, drugstores, and online shopping stores. Its product portfolio includes groceries, beverages, cosmetics, agricultural products, petrochemical products, fertilizers, furniture, bedding, and decorative items and clothing. The company also offers various services including sports, entertainment, photocopy services, advertising services, automotive repair services, renting of cleaning instruments, software design services, digital image printing, bill collection service, ticket booking and delivery services. The company offers its products through general merchandise, retail businesses both locally and overseas and e-commerce platforms to provide package delivery and pickup network in Taiwan. It also provides digital services like iPre-order, iGroup buying, and a food delivery platform.

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PCSC continues to focus on integrating innovative products and services to enhance consumer experience and maintain competitiveness. Key R&D initiatives include the development of mobile pickup services, the establishment of the iOPEN Mall for online shopping, the optimization of the iPre-order platform, and the implementation of the iGroup-Buying system. The company is also advancing its Future Convenience Store X-STORE 9 with AI technology, expanding the Travel Rewards Passport program, and enhancing mobile payment services. Additionally, PCSC is investing in automated micro fulfillment centers and a new 'get now, pay later' service. The R&D unit of PCSC is responsible for driving business model innovation, leveraging intangible assets, and implementing sustainable corporate practices. The unit focuses on strengthening intellectual property management to create value for the company and support R&D initiatives aligned with innovative business models and sustainable development. The company has maintained a strong innovation portfolio with 323 valid patents as of 2025. During the year, the company further strengthened its intellectual property assets by filing 5 trademark applications and 6 patent applications, reflecting its ongoing focus on innovation, brand protection, and technology development. In FY2025, the company incurred expenses of TWD204.566 million on R&D, which as a percentage of revenue, stood at 0.1%.