THE TEAM
Senior expertise. No intermediaries.
Every engagement is led directly by principals with decades of hands-on industry experience. You will not be handed to a junior after the first call.
Nelsa Dos Santos Martins
Owner & Principal Consultant — Process Optimisation & Development
OWNER & PRINCIPAL CONSULTANT — PROCESS OPTIMISATION & DEVELOPMENT
Nelsa Dos Santos Martins
With 36 years of hands-on experience across every level of the PGM value chain — from laboratory analyst to Head of Technical for Smelting and Refining — Nelsa brings operational depth that no generalist consultancy can match. Her career at Lonmin and Sibanye Stillwater spanned laboratory methodology development, production management, Six Sigma transformation, capital project control, and board-level technical reporting. Since founding Solutions 4U in 2020, she has continued to serve South African and international clients across process optimisation, breakthrough technology, and energy transition projects.
CAREER TIMELINE
2020–Present
Founder & Principal Consultant
Solutions 4U Consulting
2021
Strategy Analyst
SFA (Oxford) Ltd
2015–2020
Head of Technical, Smelting & Refining
Lonmin / Sibanye Stillwater
2010–2015
Technical Specialist
Lonmin Precious Metals Refinery
2009–2010
Business Improvement Manager
Lonmin PMR
2006–2009
Black Belt & Master Black Belt
Lonmin PLC
2003–2006
Acting Senior Manager / Head of Production
Lonmin PMR
1997–2003
Plant Chemist / Foreman / Superintendent
Lonmin PMR
1991–1997
Laboratory Chemist
Lonmin PMR
PRECIOUS METALS REFINERIES DESIGN ENGINEER
Amelia du Toit
Amelia is a registered professional chemical and metallurgical engineer with 15 years of experience spanning precious metals refining, battery materials, and green hydrogen technology. Since 2023 she has been working as an independent consultant designing basic and detailed engineering packages for Precious Metals separation and purification processes for clients in India, Switzerland, the USA and South Africa. She brings cutting-edge process design expertise and hands-on commissioning experience to every S4U engagement.
CAREER TIMELINE
2023–Present
Precious Metals Refineries Design Engineer
Independent Consultant, Multiple Countries
2022–2023
Site Operations Manager / Development Plant Lead
Johnson Matthey Hydrogen Technologies, UK
2020–2022
Senior Process Engineer
Johnson Matthey Battery Materials, UK
2017–2020
Lead Technical
Lonmin Precious Metals Refinery, SA
2015–2017
Technical Specialist / Acting Process Manager
Lonmin PMR, SA
2011–2015
Process Engineer
Lonmin Precious Metals Refinery, SA
Amelia du Toit
Precious Metals Refineries Design Engineer
S4U maintains a network of specialist associates across metallurgical, chemical, and process engineering disciplines — enabling scalable and targeted resourcing for larger or more specialised engagements.
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