Complex sentence: Now a publicly quoted company, it was originally founded by a group of small brewers, the Kopparberg's factory was built in 1945 and operated at capacity until 1988 when it was taken over by a Swiss brewery.
Split into simpler sentences: Now a publicly quoted company, it was originally founded by a group of small brewers. The Kopparberg's factory was built in 1945 and operated at capacity until 1988 when it was taken over by a Swiss brewery.