This heavy-lift flight, set for liftoff in May, will orbit the ST-2 and GSAT-8 telecommunications satellites. ST-2 was developed for ST-2 Satellite Ventures Pte Ltd., a joint venture formed by Singapore Telecommunications Ltd (SingTel) and Chunghwa Telecom Company Ltd. GSAT-8 is a satellite for the Indian Space Research Organisation, and is equipped with 18 Ku-band transponders along with a satellite-based global positioning system called GAGAN (GPS Aided Geo Augmented Navigation).