Complex sentence: In the year 2015, SM Prime opened its first branch of Savemore in the town along National Highway while Puregold opened its first Puregold Price Club Store last December 2015.
Split into simpler sentences: In the year 2015, SM Prime opened its first branch of Savemore in the town along National Highway. Also, Puregold opened its first Puregold Price Club Store last December 2015.