Marcus Briggs Podcast 6: Construction Cost Fraud Used to Divert Investor Capital Through Inflated Contractor Invoices on a West African Gold Processing Facility

In this episode, Marcus Briggs examines a construction cost fraud case where investor capital was diverted through inflated contractor invoices on a West African gold processing facility.

HOST: Welcome to today's episode, everyone. I'm your host, and today we are talking about something that happens in the construction industry, but it happens in gold mining too. And it is one of the most common ways that investor capital is diverted.

We are talking about construction cost fraud.

Now, imagine you are a quantity surveyor. You have been working in construction cost management for sixteen years. Estimating what things cost to build, and checking that what was built matches what was paid for, is what you do every day.

A colleague from a previous firm gets in touch. He says he has been approached about a gold processing facility being constructed in West Africa and that the investment opportunity is open to a small group of private backers. He thinks your professional background might make you useful in evaluating the construction side of things. You agree to take a look.

They send you a full construction programme, a bill of quantities, a schedule of contractor payments, and photographs of the site at various stages. You go through the numbers carefully. The cost estimates are within the range you would expect for a facility of that specification in that region. The payment schedule looks structured correctly. The photographs show what appears to be genuine construction progress.

You are close to agreeing to participate when you notice something in the contractor invoices that does not sit right. The named principal contractor has an address in the same city as the project promoter's company. In construction you sometimes see related party contracting, but it is usually disclosed. This is not disclosed anywhere.

You ask the promoter directly about the relationship. His answer is vague. That is enough for you to want a proper check before going any further.

That is exactly what happened to the subject of today's case study. His name is R.K.

He is a quantity surveyor. Sixteen years of experience. He knows construction costs inside out. And that is exactly why he was approached.

Now let me bring in his words directly. We spoke to R.K., and this is how he described his experience.

R.K.: "I am a quantity surveyor. I have been working in construction cost management for sixteen years. Estimating what things cost to build, and checking that what was built matches what was paid for, is what I do every day."

HOST: So that is the context. A professional who knows exactly what things should cost. Someone who can spot an inflated invoice from a mile away. But the fraud was not in the invoice amounts. It was in the relationship between the contractor and the promoter.

R.K.: "A colleague from a previous firm got in touch to say he had been approached about a gold processing facility being constructed in West Africa and that the investment opportunity was open to a small group of private backers. He thought my professional background might make me useful in evaluating the construction side of things. I said I would take a look."

HOST: The introduction came through a professional contact. That is a recurring pattern. Someone who knows you, who knows your expertise, brings you in to help evaluate something. It feels like a favour. It feels like professional courtesy. But it is also a way to get someone with genuine expertise to look at the numbers and pronounce them reasonable.

R.K.: "They sent me a full construction programme, a bill of quantities, a schedule of contractor payments, and photographs of the site at various stages. I went through the numbers carefully. The cost estimates were within the range I would expect for a facility of that specification in that region. The payment schedule looked structured correctly. The photographs showed what appeared to be genuine construction progress."

HOST: Everything checked out. The cost estimates were plausible. The payment schedule made sense. The photographs showed real construction progress. R.K. was close to agreeing to participate when he noticed something.

R.K.: "I was close to agreeing to participate when I noticed something in the contractor invoices that did not sit right. The named principal contractor had an address in the same city as the project promoter's company. In construction you sometimes see related party contracting but it is usually disclosed. This was not disclosed anywhere."

HOST: That is the detail. The address. The same city. A connection that had not been disclosed. In construction, related party contracting happens. But it is disclosed. You tell the client. You tell the investors. You do not hide it.

He asked the promoter directly about the relationship.

R.K.: "I asked the promoter directly about the relationship. His answer was vague. That was enough for me to want a proper check before going any further."

HOST: A vague answer is not a good sign. A promoter who has a legitimate explanation for a related-party contractor relationship provides it clearly. One who does not tends to deflect. So R.K. found someone through a professional contact at the Royal Institution of Chartered Surveyors.

And what came back confirmed his suspicion.

The principal contractor and the promoter's company shared a director. The invoices that had been paid from investor funds to that contractor had gone, in large part, straight back to accounts connected to the promoter. The construction shown in the photographs was real but was a fraction of what the payment schedule said had been completed.

Now let me explain how this fraud works.

The construction of gold processing infrastructure represents one of the largest capital expenditure categories in mining project development. A processing plant capable of treating ore at commercial scale in a West African context involves significant civil, mechanical, and electrical construction work. The associated capital costs are substantial enough to justify the involvement of multiple private investors in a funding round.

The complexity of the construction process, and the legitimate variation in costs across different site conditions, specifications, and contractor markets, creates a context in which inflated or fraudulent cost claims are difficult to identify without specialist knowledge.

Construction cost fraud in the mining context typically operates by directing investor capital through a contractor that is owned or controlled by the same parties who control the mining or processing entity. Invoices are raised by the related-party contractor at inflated rates, and the capital flows from investors to the processing entity to the contractor and back to the promoters, with a portion retained at each stage to maintain the appearance of genuine construction progress.

The physical site may show real construction activity, funded at a fraction of the stated cost, while the remainder of the investor capital is extracted through the contractor relationship.

The fraud is specifically designed to withstand review by investors with construction experience who focus on whether the cost estimates are plausible rather than on whether the contractor relationship is independent. Plausible cost estimates that flow to a related-party contractor are not a protection against misappropriation. They are the mechanism of it.

The construction package provided to R.K. was extensive and technically detailed. It included a construction programme setting out the phasing and timeline of the facility build, a bill of quantities breaking down the scope of work into discrete measurable elements with unit rates and extended costs, a schedule of contractor payments showing amounts paid to date against the programme, and a series of site photographs with date stamps showing progress at regular intervals.

The principal contractor named in the bill of quantities and the payment schedule was presented as an independent local construction firm with relevant regional experience. Its address appeared in the documentation alongside its registration details and stated track record.

The payment schedule showed that a substantial portion of the total construction budget had already been disbursed to the principal contractor in line with the programme milestones. The amounts disbursed were consistent with the level of construction progress that the site photographs appeared to show.

The site photographs were genuine images of a real construction site. The work visible in the photographs represented real physical progress. It also represented a significantly smaller proportion of the stated construction budget than the payment schedule implied, because the invoiced amounts bore no reliable relationship to the actual cost of the work completed.

The director shared between the principal contractor and the promoter's company did not appear in any document provided to R.K. The connection was discernible only through cross-referencing the contractor's corporate registration against the promoter's own corporate filings.

When the investigation examined the principal contractor's corporate registration, the director list was cross-referenced against the director list of the promoter's company and its known associated entities. A shared director was identified, holding concurrent positions in both the contractor and a subsidiary of the promoter's group. The connection had not been disclosed in any document provided to investors.

The financial flows from the investor capital pool to the contractor were traced through available corporate and banking disclosures. A portion of the funds received by the contractor from the processing entity had been transferred onward to accounts held by entities connected to the shared director, within short timeframes of the original invoice payments. The pattern was consistent with a related-party extraction mechanism rather than genuine arm's length construction contracting.

An independent quantity surveying assessment of the construction progress visible in the site photographs was conducted against the payment schedule. The assessed value of work completed, based on the photographic evidence and the bill of quantities rates, was materially below the cumulative amounts shown as paid to the contractor in the schedule, indicating that payments had been made substantially in advance of the work they purported to represent.

R.K. did not invest. He also passed what he had found to his colleague so he could reassess his own position.

This case is classified as construction cost fraud involving the direction of investor capital through a related-party contractor with an undisclosed directorial connection to the promoter's group, supported by an inflated payment schedule not reflective of actual construction progress, targeting a quantity surveying professional whose expertise in cost assessment was activated while the related-party contractor relationship remained outside his initial scrutiny, with financial loss prevented through independent corporate registry verification of the contractor relationship prior to any commitment of funds.

Now here is the lesson. And I want you to really hear this.

R.K. did exactly what any quantity surveyor would do. He assessed the cost estimates. He checked the payment schedule. He looked at the photographs. Everything seemed reasonable. But he noticed one detail: an address. And that address led him to ask the right question.

The plausibility of construction cost estimates is a necessary but insufficient basis for assessing a construction investment. The independence of the contractor receiving those costs is an equally important variable, and one that requires corporate registry verification rather than professional cost assessment to confirm.

So if you take anything away from this episode, take this. When you are evaluating a construction investment, do not stop at whether the costs look reasonable. Ask who the contractor is. Check if they are truly independent. Because a related-party contractor whose invoices are commercially plausible is more dangerous than one whose costs are obviously inflated. The plausibility of the costs suppresses the question of where the money actually goes.

We will leave it there for today. Thank you for listening to this episode, everyone. If you found this case study useful, share it with someone who works in construction or project management. Because the best fraud protection we have is not trusting the numbers. It is verifying the relationship.

That is all for today's podcast. We will catch you on the next one.

For the full case details, findings, and original narrative, Please read the original close call case study.