ASE's unit buys factory, said to expand advanced IC assembly capacity

Taipei, Jan. 14 (CNA) ASE Technology Holding Corp.'s subsidiary Siliconware Precision Industries Co. (SPIL) has acquired factory buildings and attached equipment from solar energy developer United Renewable Energy Co. for about NT$2.8 billion (US$88.44 million).

In a statement released Tuesday, ASE Technology, the world's largest IC packaging and testing services provider, was vague on how the property SPIL acquired in the Hsinchu Science Park's Miaoli section would be used, saying only it would be for future operations.

Industrial sources believed, however, that SPIL will use the space to expand its advanced IC assembly capacity to meet robust demand during the current AI boom.

The factory, with five levels above ground and three levels underground, has a total floor area of 41,030.55 square meters.

Real estate agents said the factory was coveted by several IC packaging and testing services providers, but SPIL won the tender to secure the property.

The disposal of the property allowed United Renewable Energy to pocket a profit of NT$2.1 billion in profit, the solar energy developer said.

According to industrial sources, ASE Technology is expecting an order backlog for AI-related advanced 3D chip on wafer on substrate (CoWoS) IC assembly services.

For its part, SPIL said over the weekend that it is also planning to construct five factory buildings to expand capacity in its Changhua compound, with the new facilities scheduled to start operations in 2027.

SPIL has move aggressively in the past year to take measures supporting its buildup of capacity.

In April 2025, SPIL secured the surface rights for a parcel of land in the Central Taiwan Science Park's Houli section in Taichung for 20 years to build new facilities and expand advanced IC assembly and testing production.

In mid-January 2025, SPIL inaugurated a new plant located in the Taichung Tanzi Technology Industrial Park with Nvidia Corp. founder and CEO Jensen Huang (黃仁勳) attending the inauguration ceremony, aiming to secure more CoWoS capacity.

ASE Technology posted consolidated sales of NT$645.39 billion in 2025, up 8.4 percent from a year earlier.