Welcome back to Customer Corner, where the high-vis comes pre-dusted and the hand sanitiser barely touches the sides. Our latest specimen is Roy Hill, Gina Rinehart’s Pilbara iron ore beast, majority owned by Hancock Prospecting and treated in some quarters like a monument to Australian grit, ambition and exports. Fine. Squint a little harder and it starts looking less like national pride and more like a very expensive appetite with a rail line attached. And yes, Roy Hill is properly tied to Cummins. Cummins has been crowing about Roy Hill for years, proudly pointing to Hitachi excavators at the mine, including EX8000-6 units fitted with dual QSK60 engines pumping out close to 4,000 horsepower. So when the mine turns up in stories about alleged sexual assault, sexual harassment complaints, visa-worker exploitation claims and contractor bloodbaths, this is not some distant logo on the edge of the map. It is another stench tainting the Cummins ecosystem, alongside the countless others TCAP has already had the pleasure of dragging into daylight.

Cummins Has Been Happy To Brag About Roy Hill

Let’s kill the polite fiction early.

Cummins is not some anonymous supplier whose parts accidentally ended up bolted into a machine three contractors removed from the mine gate. Cummins has publicly celebrated Roy Hill in its own case-study material, right down to the fleet detail. Roy Hill’s Hitachi excavator fleet included EX8000-6 backhoes fitted with dual Cummins QSK60 MCRS engines, with output pushing close to 4,000 horsepower. Cummins did not whisper this relationship from behind a plant room door. It put it in the brochure and smiled for the camera.

That matters, because these are not decorative toys for a mining exhibition. These are giant ore-chewing bastards helping move the mountain one bite at a time. Cummins power is part of the productivity story Roy Hill has been only too happy to sell.

So when Roy Hill’s name surfaces in uglier company, Cummins does not get to act like a baffled bystander who just happened to pass through with a torque wrench and a neutral expression.

The Camp Stories Are Grim Enough Without Any Polishing

Start with the human mess.

In June 2022, Roy Hill confirmed an alleged sexual assault between contractors at the mine. Reporting at the time said the alleged perpetrator was understood to work for Mammoet. Police were called. Roy Hill called the allegation shocking. Which is fair enough, as far as shocked corporate vocabulary goes, but “shocking” is not a remedy and it is not a culture.

Then in May 2023, another alleged sexual assault between contractors at the Roy Hill village near Newman was reported. ABC later reported that police had investigated, that no charges had been laid at the time of publication, and that the Mining and Energy Union said it was disappointed the industry was still dealing with this sort of allegation, while also saying Roy Hill’s immediate handling had been encouraging.

That is the official, careful version.

The more honest version is that this sort of story now arrives with the deadening familiarity of a site bus timetable. Another village. Another allegation. Another contractor. Another statement. Another reminder that for all the talk of safety, standards and culture, these mines can still feel like pressure cookers full of isolated workers, bruised hierarchies and corporate language sprayed over the cracks like deodorant in a locker room.

And when the best praise on offer is that management responded quickly after yet another allegation, the bar is not just low. It is somewhere around the steel cap.

Emma Tweedie Got The Standard Mining Welcome

Then there is Emma Tweedie.

In 2021, ABC reported that the former Roy Hill worker had taken allegations of sexual harassment to the Australian Human Rights Commission. Roy Hill said it took protection from sexual harassment and assault seriously, carried out an investigation and found the claims were unsubstantiated. It also said Tweedie’s contract was not extended because of performance issues, including what it described as a significant safety breach.

That is Roy Hill’s version.

Tweedie’s version was a woman saying the experience left her depressed, anxious and feeling she had no place left in the industry. Which, to be blunt, sounds depressingly on-brand for mining when someone without the institutional muscle decides to make noise.

This is the old song in a new hi-vis vest. Complaint raised. Internal process. Management language. Allegations denied or not substantiated. Contract not renewed. Worker left holding the psychological shrapnel while the mine keeps roaring.

Nobody outside the process gets to pretend they know every granular detail of what happened. But the outline is familiar enough to make your teeth itch. The machine protects itself first. It nearly always does.

Cheap Labour Allegedly Helped Build The Beast

If you want an older snapshot of how these projects treat human beings when money gets tight and deadlines start barking, go back to 2014.

ABC and SBS both reported CFMEU claims that up to 200 457 visa workers on the Roy Hill project, many of them Korean nationals employed by contractor Samsung C&T, may have been exploited. The allegations included 84-hour weeks, underpayment and workers doing jobs that allegedly did not match the occupations listed on their visas. Samsung denied wrongdoing. Roy Hill and others pushed back on the broader picture.

Fine. They denied it.

But this is Customer Corner, not a corporate absolution service. The point is that these allegations existed, they were serious, and they fit a pattern mining projects know all too well. When a giant development needs building at speed, labour suddenly becomes one more input to be squeezed, stretched and disguised as flexibility.

A mine is just a machine made out of iron, contracts and people. The iron gets maintained. The contracts get lawyered. Guess which part is easiest to wear out.

Contractors Are Good Enough Until They Start Bleeding Money

Roy Hill’s relationship with contractors has also produced the usual expensive funerals.

The Samsung C&T fight was the big theatrical one. In 2017, Roy Hill confirmed it had reached a commercial settlement with Samsung over what reporting described as a reputed $1 billion construction dispute. That is the sort of figure that makes normal people blink and mining executives reach for another coffee. A billion here, a billion there, and apparently everyone is still expected to nod solemnly about discipline and capital allocation.

Then came Aerison. In 2023, Mining Weekly reported that Aerison had lodged a formal A$47.5 million dispute with Roy Hill over services rendered at the mine. Around the same time, Aerison collapsed into voluntary administration. Other reporting linked the Roy Hill payment fight to the company’s broader financial distress.

Now, to be fair, one contractor dispute does not automatically make Roy Hill a villain in every commercial quarrel. Big projects are full of genuine disputes over scope, quality, delay and payment. Fine.

But this is exactly the sort of brutal arithmetic these mines specialise in. The ore body is huge. The operator survives. The contractor gets dragged through broken glass and accounting memos until someone keels over. One party comes out talking about continuity of operations. The other ends up with administrators and staff wondering whether the next payslip is a work of historical fiction.

The mine keeps digging. The smaller body hits the floor.

Another Cummins Customer With Grit In Its Teeth

That is why Roy Hill belongs in Customer Corner.

Because once you stop admiring the Pilbara postcard and start reading the record, the thing becomes much less heroic. Cummins has publicly tied itself to Roy Hill’s excavator fleet and the productivity story around it. Roy Hill, meanwhile, has turned up in reporting about alleged sexual assault at site, a sexual harassment complaint taken to the Human Rights Commission, visa-worker exploitation claims during construction, and contractor disputes measured in sums large enough to make your vision blur.

No, Cummins did not invent Roy Hill’s sins. That is not the point.

The point is that Cummins keeps showing up in the service of outfits like this. Big extraction. Big metal. Big money. Then, when you scrape at the paint, the usual scenes start spilling out – allegations, denials, settlements, contractors getting flattened, and another mine reminding everyone that output comes first and human beings can queue up behind it.

The engines are real. The commercial relationship is real. The baggage is real.

And that is enough.

Roy Hill can keep chewing the Pilbara. Cummins can keep smiling for the case study. The EX8000s can keep tearing at the earth with those dual QSK60s growling away like nothing else matters.

But nobody gets to pretend this is just another clean industrial success story.

It is a mine with grit in its teeth, a customer with a ledger full of ugly company, and another very familiar exhibit in the Cummins zoo.

Lee Thompson – Founder, The Cummins Accountability Project

Customer Corner : Roy Hill – Gina’s Pilbara Beast And The Cummins Engines Helping It Chew The Earth