Zelandez team at conference booth

The Zelandez team at our conference booth

Lithium Brine Technology Services — accelerating lithium supply worldwide.

NZ Hi-Tech Awards 2024

2024 NZ Hi-Tech Awards

Representing New Zealand's technology sector on the global stage.

Sumo wrestling in Tokyo

Sumo in Tokyo with the team

Business takes you to some incredible places.

Golf in Austin, Texas

Home turf in Austin, Texas

Where Zelandez runs its US operations from. Occasionally we make time for golf.

New Zealand countryside

Back home in New Zealand

Where it all started. Waihi dairy farm roots, now working across five countries.

Presenting Zelandez at Battery Gigafactories in Tokyo

Presenting in Tokyo

On stage at Battery Gigafactories — Zelandez, the brinefield services company.

Christmas camping trip on the beach in New Zealand

Winding down after a day hiking

Beers on the beach. A New Zealand summer tradition.

Clint holding a SaferMe sign

SaferMe site entry - Have you scanned in?

Co-founder of SaferMe, a SaaS safety platform for businesses 

Clint Van Marrewijk - Personal Website

Building the tools that
bring lithium to market

Co-founder of Zelandez. I've spent the last decade helping lithium brine explorers get their projects to production. Zelandez has worked on more brine assets than anyone else in the industry.

UNITED STATES  ·  NEW ZEALAND  ·  ARGENTINA  ·  CHILE  ·  BOLIVIA

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Brine assets worked ON
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Assets MAPPED
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MARKET PENETRATION
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Founded Zelandez
Companies

What I've Founded

Zelandez

Co-founder & Director

The world's largest independent provider of specialist lithium brine services. We help explorers drill better wells, build better resource estimates, and navigate the path from discovery to production. Our team includes hydrogeologists, process engineers, economists, and brinefield managers operating across Argentina, Chile, Bolivia, and North America.

zelandez.com →

SaferMe

Co-founder & Director

A safety and hazard reporting platform that turns field observations into actionable data. A platform built to help organisations spot risks before they become incidents. 

safer.me →
Expertise

What I know about

Brinefield Management

Full operational management for explorers — from drilling supervision, logging, pilot plant engineering, flowsheet selection and resource estimation. We do the work that makes the announcement timetable real. 

DLE Advisory

Independent guidance on Direct Lithium Extraction technology selection. The hard parts isn't just the DLE. It's defining the right pretreatment, reinjection, and full flowsheet that also matters.

Resource Estimation

NI 43-101 and JORC-compliant resource estimates built on proper subsurface characterization. We use the latest tools and technology specifically built for lithium brine.  

🔍

Technical Due Diligence

Independent technical reviews for M&A, financing, and investment decisions. We assess project maturity relative to the project stage — working backwards from the FID to what the data room needs.

🌐

Cross-Boundary Dynamics

Brine doesn't respect property boundaries. Pumping from one well changes reservoir pressure for miles. The lithium industry hasn't adopted unitization frameworks yet, but it will have to.

Reinjection

Mandatory in many jurisdictions, often 10% - 20% of total project economics, and frequently underestimated. We model reinjection requirements before they become surprises.

📈

Capital Raising & Company Building

Funded SaferMe from startup to operating in 15+ countries. Raised capital across multiple structures — SAFEs, equity rounds, and strategic partnerships. Built and led teams through product-market fit and international expansion.

💰

Investment Strategy

Six years at GMI covering product strategy, portfolio administration, and quantitative security analysis. Built financial models, helped launch a KiwiSaver scheme, and delivered GIPS-compliant performance reporting.

💻

Software & SaaS Products

Co-founded SaferMe — a SaaS safety and hazard reporting platform. End-to-end product leadership from concept through to enterprise sales across government, utilities, and infrastructure sectors.

🛠

Mechanical Engineering

BE (Hons) in Mechanical Engineering from the University of Canterbury. Specialised in fluid dynamics, thermodynamics, and energy engineering — the foundation that underpins my career. 

What we know is a drop, what we don't know is an ocean.

— Isaac Newton

Writing & Media

Things I've said publicly

Get in touch

Let's talk

I like talking with interesting people — whether you're a lithium explorer looking for technical guidance, an investor evaluating brine assets, or a DLE vendor wanting an honest conversation about where the industry is heading... get in touch.