Keynote Speakers

Refilwe Buthelezi
Federation of African Engineering Organisations
She serves as a Non-Executive Director of SANRAL and Transnet and sits on the Programme Steering Committee for the Infrastructure Technical Assistance Facility supporting sustainable development in South Africa. Passionate about STEM promotion, she co-founded the Pfuxani STEM Foundation.
Her recognitions include the SAIEE Women in Engineering Award (2021), University of Johannesburg Dignitas Award (2022), UK-South African Chamber of Commerce Chairman’s Award (2023) and being named among the Top 10 Performing Presidents of Professional Bodies in Africa (2023).
Refilwe is a firm Pan-Africanist, committed to advancing engineering standards and collaboration across the continent.

Inga Jacobs-Mata
International Water Management Institute (IWMI)

Bothwell Manikai
Development Bank of Southern Africa (DBSA)
Principal – Infrastructure Financing, South Africa & International, DBSA Investment Division
Master of Finance & Investment (MFI)(Cum laude) (Wits Business School); Bachelor of Commerce (Business Finance & Accounting)(Wits University)(Golden Key International Award); MDP (Distinction & Merit).
25 years developmental infrastructure financing, private equity and investment banking experience from South Africa, SADC and Sub-Saharan Africa.

Leonardo Manus
City of Cape Town
He added a master’s degree in engineering management and a postgraduate diploma in business management to his academic credentials. He is currently pursuing further research in the field of systems engineering as it relates to unplanned settlements and its impact on sanitation systems.
He currently holds the position of Executive Director: Water and Sanitation for the City of Cape Town, where he is tasked with ensuring the resilience of the water supply and the sustainable operation of wastewater systems throughout the City.

Wandile Sihlobo
Agricultural Business Chamber of South Africa (Agbiz)
Wandile Sihlobo is South Africa’s Presidential Envoy on Agriculture and Land. He is also Chief Economist of the Agricultural Business Chamber of South Africa (Agbiz) and the author of three books, “The Uncomfortable Truth About South Africa’s Agriculture (March 2025)”, “A Country of Two Agricultures: The Disparities, the Challenges, the Solutions (2023)” and “Finding Common Ground: Land, Equity, and Agriculture (2020)”.
He is a Senior Lecturer Extraordinary at the Department of Agricultural Economics at Stellenbosch University. Sihlobo was appointed as a member of President Cyril Ramaphosa’s Presidential Economic Advisory Council in 2019 (and re-appointed in 2024), having served on the Presidential Expert Advisory Panel on Land Reform and Agriculture from 2018. He is also a member of the Council of Statistics of South Africa (Stats SA) and a Commissioner at the International Trade Administration Commission of South Africa (ITAC).
Sihlobo is the Chairman of the Agribusiness Working Group of the BRICS Business Council (South Africa). Sihlobo holds a Bachelor of Science degree in Agricultural Economics from the University of Fort Hare and a Master of Science degree in Agricultural Economics from Stellenbosch University.