Complex sentence: It has one of the fastest growing economies and infrastructure in the country because of its geographical location and is a major economic and industrial centers of the country besides being the main urban, cultural, economic, industrial and agriculture in southwestern Colombia.
Split into simpler sentences: It has one of the fastest growing economies and infrastructures in the country due to its geographical location, and it is a major economic and industrial center of the country. It is also the principal urban, cultural, economic, industrial and agriculture site in southwestern Colombia.