Complex sentence: At the IAAPA 2011 Trade Show, Alan Schilke of Rocky Mountain Construction revealed their company had two projects that they would be working on for 2013 openings--one of which was the complete design and manufacturing of a wooden roller coaster.
Split into simpler sentences: At the IAAPA 2011 Trade Show, Alan Schilke of Rocky Mountain Construction revealed their company had two projects that they would be working on for 2013 openings. One of which was the complete design and manufacturing of a wooden roller coaster.