On-Site chemical production — Zero CapEx
Over-the-Fence (OTF) — built, financed and operated by Kemcore on your site
HOW OTF WORKS
Acids, caustic soda, and ammonia — delivered on-site via pipeline. Built, financed and operated
by Kemcore
Focus on Mining. We Handle the Chemicals.
We Finance & Design
Tailored to your site and demand profile
We Build & Operate
1–2 ha fenced plot within your facility
You receive by pipeline
Pay per tonne · Zero CapEx · Guaranteed uptime
WHAT WE DELIVER
Kemcore’s OTF model gives mining and industrial operations direct access to on-site chemical production — eliminating the capital expenditure, supply risk, and logistics complexity associated with imported reagents.
We fund, design, build, and operate chemical facilities tailored to your processing requirements, delivering critical reagents precisely where and when they are needed. Our model unlocks added value through byproduct monetisation and flexible offtake structures.
Sulfuric Acid
30-250 ktpa capacity
Caustic Soda/Lye
As required for processing
Ammonia
On-site synthesis or supply
Byproduct Value
We monetise/share revenue
Kemcore’s Fenced Plot
✓ You retain full site access control
✓ We lease a 1–2 hectare plot from you
✓ We own and maintain all equipment and infrastructure
✓ Reagents delivered directly via pipeline
✓ Optional: we draw power and water from your existing supply
Why Mining Companies Choose Kemcore
Africa’s mining operations face a persistent challenge: essential chemical reagents are costly to import, difficult to store at scale, and vulnerable to supply disruption. Kemcore’s OTF model eliminates each of these risks — providing purpose-built, on-site chemical infrastructure with minimal capital expenditure and optimised operational uptime.
From reagent supply to strategic feedstock hedging, Kemcore is the operational partner built specifically for the demands of Africa’s mining sector.
No Capital Investment
Kemcore invests $30–90M in infrastructure. You preserve capital for what matters — mining
On—Site Production
Built on your fenced plot. Contractual availability of 92–95%, with bonuses above 98%
Expert Operations
Experienced operators run the facility end-to-end. No chemical expertise required.
Risk Management
Pass-through formula pricing with feedstock hedging. Kemcore carries all operational and technology risk.
Flexible Payment
Pay per tonne in cash, trade byproducts as payment or choose a hybrid structure.
Proven Model
Validated by precedent — Aggreko in power and Genesis Energy in chemicals, both billion-dollar businesses.
Typical OTF
Economics & Performance
TRADITIONAL MODEL
KEMCORE OVER-THE-FENCE (OTF) MODEL
WHO WE SERVE
Contract terms built for mining
Long-term offtake agreements of 10–15 years, aligned with your mine life. Take-or-pay structures with built-in flexibility for ramp-up periods and planned maintenance shutdowns.
Pricing
Capacity fee + throughput fee, indexed to CPI/FX
Performance
92-95% availability with LDs, bonus above 98%
Ready to simplify your
chemical supply?
Share your estimated sulphuric acid or caustic soda demand and we’ll respond within 48 hours with a site-specific fee structure and delivery plan.