Complex sentence: In August 2002, Carillion bought "Citex Management Services" for £11.5 million and, in March 2005, it acquired "Planned Maintenance Group" for circa £40 million.
Split into simpler sentences: In August 2002, Carillion bought "Citex Management Services" for £11.5 million. Then in March 2005, it acquired "Planned Maintenance Group" for circa £40 million.