CHINA TOWER CORPORATION LIMITED is a China-based telecommunications tower infrastructure service provider. The Company mainly has three business segments. The Tower Business segment mainly uses sites to carry out macro cell and small cell businesses with telecommunications service providers (TSPs). The Indoor Distributed Antenna System (DAS) Business segment mainly provides indoor distributed antenna systems to TSPs and to attach their telecommunications equipment. The Trans-sector Site Application and Information Business (TSSAI business) segment mainly uses the sites dispersed nationwide and provide site resource services, including infrastructure, maintenance services and power services, to host different types of devices for customers from different industries and support them to build up different types of nationwide or regional networks.

Sarana Menara Nusantara Tbk PT. PT Sarana Menara Nusantara Tbk is an Indonesia-based company engaged in telecommunications infrastructure industry. The Company owns and operates tower sites and repeater sites for lease to wireless communications companies in Indonesia through its subsidiary, PT Profesional Telekomunikasi Indonesia (Protelindo). As of December 31, 2011, Protelindo owned and operated 6,363 tower sites (6,325 tower sites and 38 indoor repeater sites) located all over Indonesia, with its concentration of tower sites in Java, Sumatra, Sulawesi and Kalimantan.

PT Tower Bersama Infrastructure is engaged in leasing space for antennas and other equipment for wireless signal transmission at tower sites and shelter-only sites under long-term lease agreements with telecommunication operators. Co. also provides telecommunication operators with access to its Distributed Antennae System (DAS) networks in shopping malls and office buildings in major urban areas. As of Dec 31 2014, Co. had 11,820 telecommunication sites, which comprised of 10,825 telecommunication towers, 941 shelter-only sites, and 54 DAS networks.