ASE Buys $29.5M U.S. Facility, Expands Chip Packaging

According to an announcement released on August 21 by ISE Labs, a wholly owned subsidiary of ASE Technology Holding, its board of directors approved a plan on August 20, U.S. time, to acquire a building in San Jose, California, for approximately $29.53 million. The investment is intended to support future capacity expansion and further strengthen ASE’s semiconductor manufacturing and engineering capabilities in the United States.

The property has a total area of approximately 80,472 square feet, with a transaction price of about $366.92 per square foot. The total purchase price is $29,526,817.14. The seller, EXETER 1140-1150 RINGWOOD, LLC, has no affiliated relationship with ISE Labs or ASE Technology Holding.

ISE Labs determined the purchase price after reviewing an appraisal report prepared by Colliers Parrish International, Inc. and appraiser Steve Gibson. The property was valued at approximately $30.5 million, meaning the final transaction price was slightly below the appraised market value.

As ASE Technology Holding’s wholly owned North American subsidiary, ISE Labs focuses on semiconductor engineering, design, testing, and manufacturing services for advanced semiconductor products in North America. The company serves as a key strategic link between U.S. chip designers, system companies, and the broader advanced semiconductor supply chain.

Industry analysts note that ISE Labs has long maintained close relationships with customers in Silicon Valley, providing localized engineering validation, testing, and production support. As artificial intelligence (AI), high-performance computing (HPC), and advanced semiconductor technologies continue to evolve rapidly, proximity to major customers has become increasingly important.

At the same time, U.S. efforts to strengthen domestic semiconductor manufacturing have encouraged major chipmakers to expand their research, manufacturing, packaging, and testing capabilities in the country. This has created additional demand for advanced semiconductor packaging and engineering services.

ISE Labs’ latest move from leasing facilities to acquiring its own property reflects ASE’s broader strategy to expand its U.S. manufacturing footprint and secure capacity for long-term growth.

The San Jose acquisition is only one part of ASE’s global capacity expansion strategy. At ASE Technology Holding’s 2026 shareholders’ meeting, Chief Operating Officer Tien-Yu Wu said AI-related demand had exceeded expectations. The company planned to have 15 facilities, including newly constructed sites and acquired existing properties, begin construction in 2026.

These facilities are primarily designed to support long-term demand through 2029 and 2030, helping ASE avoid potential capacity shortages if demand for advanced semiconductor packaging and testing accelerates further.

To support this expansion, ASE significantly increased its 2026 capital expenditure. Annual capital spending had historically remained around $2 billion, before rising to $5.3 billion in 2025. The company subsequently raised its 2026 capital expenditure guidance from $7 billion to $8.5 billion and then increased it again to $10.5 billion at its July 30 earnings briefing, representing a 23.5% increase from the previous target.

This marked the third capital expenditure increase announced by ASE in 2026, underscoring the strong and urgent demand for advanced semiconductor backend manufacturing capacity.

Wu previously explained that ASE’s overseas expansion strategy is to first establish highly efficient, automated, and cost-effective packaging and testing models in Taiwan before replicating mature production systems overseas. In addition to plans for its third and fourth testing and R&D facilities in California, ASE is continuing to expand its presence in Arizona to support TSMC’s U.S. operations and major local customers.

The San Jose property acquisition therefore represents more than a real estate investment. It highlights ASE’s commitment to expanding localized semiconductor engineering, testing, and manufacturing capabilities in the United States as AI and advanced computing continue to reshape global semiconductor demand.