Why First Quantum Chose to Own Trolley-Assist Rather Than Buy It

Diesel is one of the largest controllable costs in open-pit mining, and it climbs steadily the moment a fully loaded haul truck starts grinding uphill. That single problem has kept mine planners waiting for years, hoping an equipment maker would deliver a clean, off-the-shelf answer.

First Quantum Minerals did not wait. It spent more than 14 years building its own fix, and last week the company confirmed it had locked that fix behind a patent.

On 16 September 2026, First Quantum announced that the UK Intellectual Property Office (UK IPO) had granted both a patent and a registered trademark for Quantum Electra-Haul, its proprietary trolley-assist haulage system. This is not a slide in a strategy deck. It is a live system already moving rock at the Kansanshi copper-gold mine in Zambia, now running alongside a full battery-electric truck trial.

Trolley-assist works by suspending electrified overhead cables above haul roads, letting trucks draw power directly rather than burn diesel.

Here is a framework for evaluating how owning electrification technology, rather than renting it, changes a mining company’s cost base and its competitive standing in a market that increasingly prices carbon.

Hard operational data from the Kansanshi haulage overhaul

Green mining claims usually arrive dressed in press-release language and short on numbers. Kansanshi is the opposite case, because the infrastructure and the output are already measurable.

First Quantum has installed more than 15 km of trolley-assist overhead lines across its three largest sites, and it runs 41 Hitachi diesel trolley trucks at Kansanshi. That is not a pilot. It is a working fleet at industrial scale.

The performance figures do two jobs at once: they cut emissions and they speed up the haul. On trolley-equipped uphill segments, diesel consumption can fall by as much as 90%. At the same time, truck speed on those segments roughly doubles.

Consider what that speed change actually delivers on the ground.

Across group operations in 2025, the aggregate picture looked like this:

• 45,000 tonnes of greenhouse gas emissions avoided, according to figures attributed to Gordon White, First Quantum’s Director of Mine Operations and Technology, and reported by Mining Digital.
• Nearly 500,000 km completed under trolley power during the year.
• Speed gains from 11 km/h on diesel to 22 km/h under trolley on qualifying uphill segments.
• Around 2 minutes saved per trolley pass.

Read those numbers as unit economics, not just an ESG scorecard. Faster cycle times mean each truck moves more rock per shift, and 90% less diesel on the steepest, most fuel-hungry segments feeds straight into a lower cost per tonne.

The 45,000-tonne emissions figure is worth treating as a floor rather than a ceiling. It reflects current coverage, and First Quantum’s stated plan is to expand trolley use considerably from here, which means the baseline should grow as the network extends.

Decoding the Quantum Electra-Haul system and battery integration

The visible part of the system is the overhead line. Above the haul road runs a set of electrified catenary cables, essentially suspended power lines, and each truck carries a pantograph, a hinged arm on the roof that reaches up to make contact and draw current directly from those cables.

When the pantograph is engaged, the truck runs on grid electricity instead of diesel. That is the whole mechanism in its simplest form, and it is the product of more than 14 years of in-house design and refinement at First Quantum’s sites.

The interesting engineering sits in what the company is layering on top.

At Kansanshi, First Quantum is trialling a full battery-electric dump truck built on the Hitachi EH4000 platform, with battery and charger systems supplied by ABB. This truck does something a diesel trolley truck cannot: it uses the overhead lines for two things at once.

While drawing power from the catenary to drive up the ramp, the truck simultaneously charges its onboard battery. Regenerative braking on the descent tops the battery up further. When the truck leaves the trolley section, it runs on that stored charge across the rest of the circuit.

The charging infrastructure bottleneck is the most frequently underestimated constraint in open-pit electrification programmes; by using the overhead trolley network as a dynamic charging source during loaded uphill passes, First Quantum’s hybrid architecture sidesteps the depot-charging queuing problem that slows purely battery-electric deployments.

This is the pivotal insight for evaluating the asset. The overhead line stops being single-purpose diesel-replacement kit and becomes a dynamic charging network, which means the same infrastructure can power emerging battery trucks as they mature.

The trial has moved through clear stages:

1. 1 March 2023: First Quantum and Hitachi Construction Machinery signed a Letter of Intent to develop the Kansanshi battery-electric truck.
2. June 2024: The feasibility trial of the full battery dump truck formally commenced.
3. June 2024 to August 2025: Over the trial period, the truck travelled more than 4,000 km and hauled over 30,000 tonnes of material under live operating conditions.
4. 15 April 2026: A demonstration event showcased the truck operating under the overhead trolley lines.
5. 16 April 2026: First Quantum and Hitachi commissioned what is described as the world’s first ultra-large battery-electric mining truck at Kansanshi.

What this means for long-term operational resilience is straightforward. Because First Quantum owns the overhead infrastructure, it can absorb new battery technology without ripping up its haulage strategy each time an equipment maker releases something better. Static hardware becomes a flexible, future-facing asset rather than a stranded one.

The strategic moat of proprietary electrification intellectual property

Up to this point, the story reads as an engineering achievement. The patent reframes it as a commercial one.

By securing a granted patent and a registered trademark from the UK IPO in the summer of 2026, announced on 16 September 2026, First Quantum converted operational know-how into a defensible asset. Further patent applications covering other aspects of the invention remain pending, which signals an intent to build a portfolio rather than plant a single flag.

First Quantum’s official patent announcement confirms that the UK IPO grant covers the Quantum Electra-Haul system in full, with further patent applications on other aspects of the invention still pending, extending the IP perimeter beyond the initial grant.

The strategic contrast matters here. Most miners chasing decarbonisation buy turnkey solutions from original equipment manufacturers (OEMs), the companies that build the trucks and control systems. That route is faster to deploy, but it ties the operator to one vendor’s software ecosystem and hardware choices.

First Quantum has taken a different path, and it is worth naming precisely what that path buys.

First Quantum has moved from being a consumer of mining technology, buying what OEMs offer, to an owner of the electrification concept itself. That ownership is what lets it standardise a single system across fleets and sites without asking permission from a supplier.

This does not mean cutting OEMs out. First Quantum began working with Liebherr, Hitachi, and Komatsu on trolley and truck development back in 2011, and Hitachi and ABB supply the battery truck and its charging systems today. The model is hybrid: First Quantum owns the operating concept and the overhead network, while OEMs provide the rolling stock.

For an investor, the read is about leverage. Controlling the patented system strengthens First Quantum’s hand in every future OEM negotiation, because it is no longer buying a complete black box; it is buying components to fit its own architecture.

There is also optionality on the upside. Owning the intellectual property behind a working decarbonisation system opens the door, at least in principle, to licensing it or deploying it as a standardised template across a wider portfolio, turning a cost centre into a potential source of differentiation and, one day, revenue.

Physical constraints and the global race to net-zero copper

The optimism needs a counterweight, and physics supplies it. Overhead trolley lines are fixed infrastructure, and installing them is capital-intensive and logistically awkward, especially inside an active pit that gets deeper and reshapes its haul roads over time.

The economics only work where trucks use the equipped segment heavily. That makes trolley-assist a targeted tool rather than a universal one: it shines on long, steep, consistent uphill hauls, and struggles where haul patterns shift constantly or ramps are frequently reconfigured.

Evaluating electrified mine haulage alternatives, including trolley-assist, full battery-electric, hydrogen fuel cell, and hybrid configurations, reveals that no single technology dominates across all pit types; the optimal choice depends on ramp geometry, grid reliability, capital budget, and how frequently haul roads are reconfigured as the pit deepens.

This feeds directly into an industry debate. One camp sees trolley-assist paired with diesel or hybrid drivetrains as the strongest near-term lever for large open pits. Another argues that full battery-electric or hydrogen trucks, charging opportunistically, offer the more flexible long-term route to zero emissions.

First Quantum’s Kansanshi trial is effectively a bet that both can be true at once, using the battery truck under trolley power to bridge the two positions. Its stated long-term ambition is to extend trolley coverage to up to 100% of each up-ramp haul cycle, though no completion date has been given.

Benchmarking against copper sector peers

First Quantum is not alone in this race. Major copper producers including Codelco, BHP at its Escondida operation in Chile, Anglo American, Rio Tinto, and Boliden have all launched programmes around trolley-assist, battery-electric trucks, or other zero-emission haulage, typically in partnership with OEMs such as Komatsu, Caterpillar, Hitachi, and Epiroc.

All of this sits inside a shared framework. Members of the International Council on Mining and Metals (ICMM), First Quantum among them, have committed to net-zero Scope 1 and 2 emissions, the emissions a company produces directly and through the power it buys, by 2050 or sooner.

Net-zero commitments made under the ICMM framework require members to eliminate Scope 1 and 2 emissions by 2050 or sooner, but the pathway each miner chooses, whether through technology ownership, OEM partnerships, or carbon offsetting, has materially different implications for capital intensity, operating cost trajectories, and the credibility of the commitment itself.

What separates First Quantum is where it sits on the build-versus-buy spectrum. Its proprietary trolley IP plus OEM battery partnership places it between miners running pure OEM pilots and those constructing sprawling in-house technology stacks. For capital expenditure forecasting, that middle path is the honest read: real cost advantage on the right routes, real capital and rigidity risk everywhere else.

Valuing proprietary technology in the next copper cycle

Put the three threads together and a coherent strategy appears. The September 2026 patent locks in the intellectual property, the 2025 operational data proves the system already lowers cost and emissions at scale, and the Hitachi battery trial shows the same infrastructure can carry the next generation of trucks.

That combination matters most in the direction the copper cycle is heading. As carbon pricing spreads and ESG scrutiny tightens, a miner that owns its decarbonisation infrastructure has more control over its future operating costs than one still negotiating for it, one contract at a time.

For First Quantum specifically, rebuilding market confidence after the suspension of Cobre Panama, the asset gains credibility from demonstrating that its remaining operations are efficient, lower-carbon, and technologically differentiated. Owning the patent behind that story strengthens the case that the company is investing in durable, future-proofed assets rather than legacy diesel capacity.

Investors assessing the competitive landscape for lower-carbon copper output will find our dedicated guide to cleaner copper production technologies useful, covering process-level innovations from smelting through to haulage and how different producers are positioning their emissions credentials ahead of the next contracting cycle.

This article is for informational purposes only and should not be considered financial advice. Investors should conduct their own research and consult with financial professionals before making investment decisions. Past performance does not guarantee future results. Financial projections are subject to market conditions and various risk factors.