Complex sentence: National Co-operative Chemists traded in those parts of the United Kingdom where there was no regional society pharmacy, although some independent societies also used the The Co-operative Pharmacy brand since it was introduced in 2007.
Split into simpler sentences: National Co-operative Chemists traded in those parts of the United Kingdom where there was no regional society pharmacy. In some other places, independent societies also used the The Co-operative Pharmacy brand since it was introduced in 2007.