Dr. Flavio Chaves, Assistant to Vice Governor of the State of Sao Paulo, to Present at NewMarket Technology, Inc.'s Emerging Market Seminar January 18, 2008 in Dallas DALLAS, TX--(Marketwire - November 21, 2007) - NewMarket Technology, Inc. (OTCBB: NMKT) announced today that Dr. Flavio Chaves of Sao Paulo, Brazil, will be presenting on the business and economic...