Prof Oboetswe Seraga Motsamai is a mechanical and aeronautical engineering professor at University of Botswana, Department of Mechanical Engineering. He received BEng. in mechanical engineering from the University of Botswana, in 1996 and MSc. Degree in Thermal Power and Fluids Engineering from the University of Manchester Institute of Science and Technology (UMIST). He received PhD in mechanical and aeronautical engineering from the University of Pretoria in 2008, and got a Golden Key International Award for excellence in research. He started his career in engineering with Kentz Botswana, a mechanical engineering contractor and later worked for G4 Consulting Engineers, before, joining UB. He has researched and published extensively in the area of mechanical, aeronautical engineering and renewable energy, collaborating with local and international companies on R&D projects. He has ​served the University of Botswana in many high level committees: i.e. HOD, SENATE and FAPRAC. He also served in the Advisory Board for Botswana College of Engineering and Technology. He served the Government of Botswana in various committees and assignments: i.e a member of a committee under the Ministry of Energy and Water Resources for Concentrated Solar Thermal Power plant (100 MW), development of a 100MW photovoltaic power station, development of BERA policy documents and the recent Energy Balance exercise. He has previously assisted CEDA, LEA and other companies in engineering related projects.

Mr. Valashia is a widely experienced executive management officer and trade facilitation and customs expert, with over 20 years of experience. He holds a Master of Customs Administration and Law from the Munster University, Germany, and a Bachelor of Arts (Economics) degree from the University of Botswana.

He sits as a Board Member of the Botswana Competition Authority and has since 2012 sat as a member of the Botswana Unified Revenue Service (BURS) Executive Committee. Mr. Valashia is currently the Commissioner of Operations at BURS and is, inter alia, responsible for all tax and customs operations of the Organisation.

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