External Assessor for Academic and Research Grade Promotions- Cocoa Research Institute of Ghana (CRIG), Forestry Research Institute of Ghana (FORIG), Science and Technology Policy Research Institute (STEPRI), Ghana, University of Ghana, Legon, University of Cape Coast, University for Development Studies, Tamale 2007 to date.
• Co-ordinator, World Food Programme Purchase for Progress (P4P) Project, Dept of Agric. Econ., Agribusiness and Extension, KNUST, Kumasi. 2012-2014
• Moderator and External Examiner for the Tamale Polytechnic 2000-2004 and Sunyani Polytechnic, 2000, Ho Polytechnic, 2011-2014
• External Examiner, Department of Agricultural Economics and Agribusiness, University of Ghana, Legon
• Visiting Scholar (on Sabbatical leave), Department of Agricultural Economics and Extension, University of Cape Coast, Ghana, 2006-2008
• External Examiner for the Department of Agricultural Economics and Extension, University of Cape Coast, Coast, 1998-2006, 2009 to 2014
• Moderator and External Examiner, University for Development Studies, Faculty of Agriculture and Communication Sciences, Tamale 2011 to date
• Moderator, Presbyterian University College, Department of Agribusiness, 2010 to date.
• Anonymous referee for the Ghana Journal of Agricultural Science from 1994 to date.
• Anonymous referee for the Ghana Science Journal from 2002 to date
• Chairman of the Northern Sector Panel – Millennium Development Authority (MiDA)-Evaluation of Agribusiness Proposals for the MiDA Agribusiness Centres in Ghana, Oct-Nov. 2009
• Member of the Curriculum Review Team in the conversion of the Kwadaso Agricultural College, Kumasi to a Diploma-awarding institution for mid-career extension staff of MOFA, Ghana.