Manhattan Process Engineering

The Witwatersrand Basin is not just part of South Africa’s history — it is the most significant gold resource ever discovered globally.

→ Over 40,000 – 48,000 tonnes of gold mined from the basin since 1886 (Buy Gold Africa)
→ Equivalent to roughly 25% – 40% of all gold ever mined in human history (The Heritage Portal)
→ Still the largest gold resource on Earth (Minerals Council SA)

To put this into perspective:
→ Total gold ever mined globally: ~187,000+ tonnes (World Gold Council)

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What remains

South Africa:
→ ~2,800 – 3,000 tonnes of proven reserves (Buy Gold Africa)

Global:
→ ~54,000 – 64,000 tonnes of economically viable reserves remaining (Live Science)

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Context

South Africa once produced the majority of the world’s gold. Today, the remaining resource is deeper, more complex, and more capital-intensive — shifting the industry from scale to precision.

At Manhattan Corporation, this is where we operate:
→ Supporting efficient extraction of remaining resources
→ Enabling technically complex projects
→ Driving long-term value in mature mining environments

The era of easy gold is over.
Ex*****on is now the differentiator.

At Manhattan, we specialise in accelerating the journey from discovery to production — turning technical potential into operational mining assets through rapid, disciplined ex*****on.

Our teams combine decades of experience across geology, metallurgy, process engineering, and project delivery, bridging the critical gap between early-stage resource definition and fully operational processing facilities.

We support projects from evaluation through to environmentally responsible production:
* Geological assessment & exploration support
* Metallurgical testing & flowsheet development
* Process route selection & optimisation
* Modular processing plant engineering
* Mine infrastructure and rapid-deployment delivery
* Safe, compliant, high-yield operations

As an ex*****on-focused partner, we integrate geology, metallurgy, infrastructure, and processing into a single delivery pathway — enabling faster project start-up while ensuring designs are scalable and built for long-term expansion.

Our approach combines rigorous engineering thinking with practical delivery expertise, transforming technical studies into operational reality and unlocking value where it matters most.

Manhattan — bridging discovery to production.

Exploration → Metallurgy → Processing → Infrastructure → Operations

Let’s build mining projects that last.

www.manhattancorp.com

Turn your discovery into a world-class operation.

At Manhattan Process Engineering, we support mining projects from early-stage resource understanding through to process design, construction, installation, and commissioning. Our integrated approach ensures that discoveries are developed into efficient, scalable, and commercially viable operations.

From laboratory test work and flowsheet development to full mechanical, electrical, and civil design, we partner with our clients at every step of the journey.

📍 Mining Indaba 2026�
We’ll be attending Mining Indaba 2026 and would welcome the opportunity to connect. If you’ll be there and would like to discuss an upcoming project or collaboration, you can schedule a meeting with our team using the link below:

👉 https://www.manhattancorp.com/mining-indaba-africa-2026

We Look forward to working with you.

With gold prices surging, the projects that move fastest — and smartest — will capture the greatest returns. Success doesn’t start with the first tonne processed; it starts with the right foundation.

At Manhattan Corporation, we deliver end-to-end solutions that ensure your gold project pays back faster and operates at the lowest life-cycle cost.
Contact Our Team Today

Geological Modelling & Targeting
The key to early profitability lies in understanding your orebody. By integrating geological modelling with plant design, Manhattan helps you:

🔶 Pinpoint high-grade zones for early mining
🔶 Accelerate project payback and debt reduction
🔶 Optimize throughput from the start

Laboratory Test Work & Recovery Optimization
Even a 0.05 g/t recovery gain can deliver millions in added revenue at scale. Manhattan’s designs focus on these margins. Our mineralogical studies and gold distribution analysis ensure you capture maximum value by delivering:

🔶 Higher recoveries and margins
🔶 Accurate scale-up from lab to plant
🔶 Robust test campaigns for reliable results

Practical, Best-Value Plant Design
Built by a team with decades of design-build-operate experience, Manhattan’s process plants are:

🔶 Engineered for easy maintenance and reliability
🔶 Optimized for low operating costs and smart layouts
🔶 Designed for maximum return on investment

With markets at record highs, Manhattan helps you seize the opportunity. From geology to commissioning, our holistic approach ensures you deliver faster, more profitable results.

Successful gold projects begin long before the first tonne is processed. Manhattan Corporation takes a holistic approach — combining geological modelling, laboratory test work, and practical plant design — to deliver projects that pay back faster and run at the lowest life-cycle cost.

🔶 Early-Stage Optimization: High-grade targeting & optimized throughput planning to accelerate payback and reduce life-cycle costs.
🔶 Recovery Optimization: Comprehensive mineralogical studies and test work to maximize recovery and profitability.
🔶 Best-Value Plant Design: Practical, reliable process plants engineered for lowest operating costs and maximum uptime.
From geology to commissioning, we integrate modelling, laboratory work, and smart plant design to deliver projects that perform.

Learn More: www.manhattancorp.com

Early-stage integration of geological deposition modelling with project ex*****on allows for selective scheduling of high-grade zones. This approach maximizes early revenue, improves project cash flow, and reduces overall life-of-mine costs.

With over 30 years of experience in gold plant design and delivery, Manhattan offers:
🔶 Geology-aligned plant design for efficient ore processing
🔶 Optimized throughput strategies matched to ore variability
🔶 Accelerated project payback through targeted high-grade mining

Our multidisciplinary team combines metallurgical test work, engineering design, and project ex*****on to ensure your plant is built to extract maximum value from your orebody — from day one.

Discuss Your High-Grade Strategy: www.manhattancorp.com

Ever wondered why scrubber speed matters? ⚙️ In our latest blog, we break down critical speed—the key to getting the right lift, cascade, and wash action in rotary drum scrubbers.

Read More on our Blog:-

Critical Speed Explained: How to Optimize Rotary Drum Scrubber Performance Critical speed is the theoretical RPM where particles stick to the scrubber shell instead of tumbling. Operating at 60–70% of this speed creates optimal cascading, maximising clay breakdown and washing efficiency without excess wear or energy waste. Learn how to calculate % critical speed and hit ...

Choosing the right aspect ratio can make or break a scrubber circuit.
From residence time to scrubbing intensity, the length-to-diameter (L/D) ratio determines whether your rotary drum scrubber maximizes throughput or unlocks cleaner product.

In our latest blog, we explore how different aspect ratios—from compact, high-throughput units to longer, deep-cleaning designs—impact performance, power draw, and wear patterns.

🔗 Read the full post here: https://www.manhattancorp.com/post/process-overflow-by-manhattan-scrubber-series

Process Overflow by Manhattan: Scrubber Series Aspect ratio is one of the most critical design parameters in rotary drum scrubbers, directly affecting residence time, scrubbing intensity, and circuit performance. From fast throughput in low L/D drums to deep-cleaning in high L/D designs, choosing the right geometry can determine whether your pla...

Scrubber Series – Introduction to the Workhorse of the Wash Plant

In mineral processing, feed cleanliness can make or break recovery efficiency.
That’s where the rotary drum scrubber comes in — the quiet, tireless workhorse designed to free valuable minerals from clay, coatings, and other contaminants before they enter downstream circuits.

In the first article of our Scrubbers in Mineral Processing series, we explore:
🔹 What rotary drum scrubbers are and how they work
🔹 Why they’re critical for ore preparation
🔹 Where they fit in a typical flowsheet
🔹 Industries and applications — from diamonds to aggregates

Whether you’re designing a new plant or troubleshooting an existing one, understanding your scrubber’s role can unlock higher recovery rates and better efficiency.

Read the full article here: https://www.manhattancorp.com/post/scrubber-series-introduction-to-the-workhorse-of-the-wash-plant