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In December, 1997 PM created a new region called the Central Europe, Middle East and Africa Region and Calantzopoulos worked in that region. He was headquartered in Warsaw, Poland and reported directly to Jean-Claude Kunz. 
Prior to his appointment in Warsaw, in 1990, he served as PM's general manager in Finland.
- Philip Morris Readies Aggressive Global Push O'Connell V. Wall Street Journal. January 29,2008, page A1.
- PMI Organization: European Regions Gembler A. Organizational announcement/article. December 18, 1997. Philip Morris Bates No. 2063561901/1903
- Untitled Philip Morris organizational announcement Mandato, JA. May 1990. Bates No. 2501389903/9915