Complex sentence: Its only US operation was terminated in January 2009 by the Mayor of Albuquerque, having received more than $1.5 million dollars in public funding but leaving debts of over $672,000 to the federal, state and city governments.
Split into simpler sentences: Its only US operation was terminated in January 2009 by the Mayor of Albuquerque. By that time it had received more than $1.5 million dollars in public funding, but on closing it left debts of over $672,000 to the federal, state and city governments.