Nicolaas Jonker
Full Name: Nicolaas Johannes van der Watt Jonker
Position and Company Name: CEO of Jonker Kontrakteurs
Main Activity of the Company: Jonker Kontrakteurs is a multidisciplinary civil construction and mining-services company specialising in underground safety innovation, patented engineering technologies, and turnkey operational support for major mining houses across South Africa, with a global prospect
Date and Place of Birth: June 1, 1990, Standerton, Mpumalanga, South Africa
Education: I matriculated in 2008 and enrolled at North-West University (Potchefstroom) for an LLB. After two years, I transitioned to geology and chemistry for one year, before deciding to join the family construction business full-time – a decision that ultimately shaped my career in mining and innovation
First Job: Driver and foreman in the family business, Jonker Kontrakteurs, working primarily on government construction projects
Size of First Pay Packet: R4 500 a month
Career Path to Date: I worked in the family business until 2015, when I started my own venture, NJ Solar. After several years in the renewable-energy space, I received a subcontract from Sahara Sand on a project within Sasol, where I first recognised the scale of opportunity in the mining industry. In 2021, following the passing of my late mother, Susan Jonker, I took full control of Jonker Kontrakteurs. Today, my team and I are committed to building the company into a global mining powerhouse, driven by innovation, operational excellence, and our patented safety technologies
Value of Assets under Your Control: A growing portfolio of intellectual property, operational equipment, construction assets, and mining services contracts valued in the multimillion-rand range
Number of People under Your Leadership: Between 40 and 120 employees and contractors, depending on operational requirements
Management Style: Decisive, hands-on, solutions-oriented, and driven by fast, accountable execution
Personal Best Achievement: Developing and patenting safety technologies – including the Borehole Plug, an autonomous underground area warning light, and Dust Halo – which have the potential to significantly advance underground safety across the industry globally
Person Who Has Had the Biggest Influence on Your Life: My wife — for her unwavering support, commitment, and faith in me, even during seasons when the future felt uncertain
Person Who Has Had the Biggest Influence on Your Career: I have been strongly motivated by business leaders operating in global industries, whose journeys demonstrate that success is not defined by geography. Their ability to build world-class enterprises from diverse origins reinforced my belief that, with the right tools, mindset and execution, it is possible to create globally competitive businesses from anywhere
Person You Would Most Like to Meet: Warren Buffett – his long-term discipline, value-driven investment philosophy, and ability to remain calm, rational, and principled through decades of market cycles represent qualities I strongly admire and aim to emulate in business leadership
Businessperson Who Has Impressed You Most: Larry Fink, of BlackRock, for his strategic clarity and global perspective on sustainable investment
Philosophy of Life: Build with integrity, innovate with purpose, and let adversity sharpen rather than discourage you
Biggest Ever Opportunity: Commercialising our patented mining-safety devices and positioning a South African-built innovation for global adoption
Biggest Ever Disappointment: Not being able to say goodbye to my mother before she passed away in 2021 – an experience that strengthened my resolve to build something meaningful in her honour
Hope for the Future: To grow Jonker Kontrakteurs into a world-recognised mining innovation company, uplift communities through sustainable projects, and play a meaningful role in modernising the mining industry
Favourite Reading: Business strategy, leadership insights, the workings of money, and biographies of influential thinkers.
Favourite TV Programme: Engineering, discovery, and real-life innovation documentaries
Favourite Food/Drink: A well-aged steak, paired with a matured whiskey
Favourite Music: A wide range – from Afrikaans classics to modern country tracks.
Favourite Sport: Golf and motorsport
Hobbies: Travel, hunting, automotive restoration, innovation development
Car: Ford Ranger Raptor and Land Rover Defender
Pets: Three cats
Miscellaneous Dislikes: Poor workmanship, a lack of accountability and dishonesty
Married: To Jeannie Jonker
Children: Not yet
Clubs: The School of Hard Knocks
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