ASE Technology Holding Co., Ltd. is mainly engaged in the general investment business. The Company provides customers with three types of services. Integrated Circuit (IC) services consists of packaging services, including packaging and module design, IC packaging, and multi-chip packaging; testing services, including previous testing, wafer pin testing and finished product testing, as well as materials, including substrate design and manufacturing. Electronic manufacturing service business are involved in the development and design of communication, consumer electronics, computers, storage, industrial, automotive electronics and other types of electronic products, the material procurement business, logistics, maintenance and other after-sales services. Other services include real estate development, construction, home sales property management and shopping mall rental business. The Company distributes its products to the United States, Taiwan, Europe, Asia and other regions.