Executive Board

Advocating the association’s values, mission and vision

The WAITRO Executive Board constitutes the President, two Vice-Presidents, and five Regional Representatives from Asia and the Pacific, Middle East and North Africa, Latin America and the Caribbean, Africa and Europe. Elected by the General Assembly for a term of two years, Executive Board members are serving WAITRO voluntarily to govern the association’s activities. WAITRO Executive Board Meetings are held twice a year. During those meetings, Executive Board Members approve the financial statements and endorse the work programs and budget plans for the upcoming period.

Quick links to each Board member


Prof. Hasan Mandal holds a bachelor’s degree in Metallurgical Engineering from Middle East Technical University and a PhD. from Newcastle University in the UK. He completed post-doctoral studies at Newcastle and Karlsruhe Universities.

Prof. Mandal is a professor of Materials Science and Engineering and has over 140 published studies. He holds 6 international patents and has received national and international awards, including TÜBITAK Science Award. He served as Director of Research and Graduate Policies and Vice Rector of Sabancı University. He also held positions as President of Global Engineering Deans Council, President of European Ceramic Society, and Dean of Faculty of Engineering and Architecture at Anadolu University and was elected as a member of the ANSO Executive Board in 2022.

Prof. Mandal has been a member of YÖK Executive Board, and Deputy Chairman until January 2018 and is currently a member of YÖK Council. He served as Deputy Rector of Sabancı University from January to February 2018. He was appointed President of TÜBITAK in 2018 and elected as President of WAITRO for 2023-2024.

Prof. Dr. Hasan Mandal 1

Prof. Dr. Hasan Mandal


Hans-Erich Schulz has over twenty years of senior management and project management experience in a range of industries including mining, manufacturing, transportation, technical services and sustainable development in both the public and private sector. His experience in strategic planning and implementation, operations and change management enabled enhanced efficiency and improved performance at the organizations which he has managed.

Mr.  Schulz has also managed climate change projects with the United Nations Development Programme (UNDP) including the Low Emission Capacity Building (LECB) Programme and Nationally Determined Contribution (NDC) Support Programme for Trinidad and Tobago.

Mr. Schulz holds MSc. degrees in Chemistry and Environmental Management, as well as an MBA in Marketing Management and is a certified Project Management Professional (PMP).

Hans Erich Schulz

Hans-Erich Schulz


Dirk Saseta Krieg is on Leitat’s Executive Board as Director of Promotion and International Affairs. He manages both international and national operations for public fund raising, private sales, and project management at Leitat. Dirk represents Leitat at institutional level and is active in RTO associations WAITRO, EARTO, and FEDIT. He has 17 years of experience in public and private RTOs in Europe and the USA, including work as a project manager at the Meadowlands Environmental Research Institute from 2006-2008.

Dirk joined Leitat in 2009 as a Project Manager in environmental technology and renewable energy, and was named Director of International Affairs in 2013. He holds a Bachelor’s in Environmental Science from Fairleigh Dickinson University, a M.Sc. in Environmental Audits and Management Systems, specializing in Renewable Energies from Universitat Politècnica de Catalunya, and an MBA from ESADE Business School. He has also completed courses in ISO quality, environmental audits, and project management and has served as a professor, lecturer, and speaker in Project Management and EU proposal writing.


Dirk Saseta Krieg


Prof. Paul Pinnock Bosu joined CSIR as a national service person in 1994 and became a full-time Assistant Research Scientist in 1995. He rose through the ranks and became Chief Research Scientist in 2018. In addition to being a full-time research scientist, he teaches part-time and trains students in Ghana and abroad. In 2017, he was awarded Associate Professor in Entomology by the CSIR College of Science and Technology. He served in various positions at CSIR-FORIG, including Head of Entomology and Head of Training and Consultancy Section. He was also Editor-in-Chief of the Ghana Journal of Forestry and Chair of the CSIR-FORIG Staff Fund.

Prof. Bosu served as Deputy Director-General from 2019 to 2022 and is now the Director General. He serves on several national committees and boards, including the Executive Committee of the MAG program and the Advisory Board of the College of Basic and Applied Sciences. He has authored/co-authored over 100 scientific publications and attracted significant research funds to CSIR-FORIG. He has trained over two thousand Ghanaians in snail farming and beekeeping. He was recognized with awards such as the Distinguished Alumnus Award from Northern Arizona University and the National Best Agricultural Researcher Award. He has a Bachelor of Science, Master of Philosophy, and PhD. in Biological Sciences and Forest Entomology. He is an alumni of KNUST and NAU.