The Plaza family is not only known in politics but also in the business world as they hold the logging empire in Agusan, a cement business and a real estate company. This is the reason that aside from holding positions in the government, they also hold position in their companies.
Prior to politics, Ompong was an assistant manager for Alpha Marketing Inc. from 1979 to 1983 and as assistant to the president (1982-1991) and president (1995-2000) of D.O. Plaza Management Corporation, established by his father. At present he is the president of the Woodland Real Estate Development, Inc. and among the Board of Trustees of NORMISIST (Northern Mindanao State Institute of Science & Technology).
He also served as pressident to the Regional Infrastructure Devt., Corp. from 1989 to February of 2001.
He started in politics as a Representative of the Lone District of Agusan del Sur to the 12th Congress of the Philippines and again to the 13th . He is re-elected to serve for his third term in the 2007 Elections to the 14th Congress of the Philippines
Source : http://en.wikipilipinas.org/index.php?title=Rodolfo_G._Plaza