Complex sentence: PT Satelit Palapa Indonesia (Satelindo) was established in 1993 under the auspices of PT Indosat and began operating as a GSM operator in 12994, the first GSM operator in Indonesia to issue prepaid cards and postpaid Matrix Mentari.
Split into simpler sentences: PT Satelit Palapa Indonesia (Satelindo) was established in 1993 under the auspices of PT Indosat. Satelindo establishment as a subsidiary of Indosat makes him the first GSM operator in Indonesia to issue prepaid cards and postpaid Matrix Mentari.