With a 400% profit margin, Sirius Minerals is a dirt cheap future cash cow

Sirius Minerals plc (LON: SXX) could be the world’s most profitable mining company.

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More.

Sirius Minerals (LSE: SXX) might not be everyone’s favourite company yet, but it’s hard to criticise the firm’s prospects. Its flagship North Yorkshire potash mine is a world-class asset, and now the company has planning permission and the financing in place to progress the development of this mine, the project is substantially de-risked.

Granted, there is still plenty that can go wrong. Mining and resource projects are notorious for running over budget and being delayed. Often this is due to factors completely out of management’s control such as poor weather or unforeseen development obstacles, and there’s no guarantee that Sirius will not succumb to one of these problems.

That being said, so far the company’s management has been highly efficient in executing the planning process for the mine and raising the required financing, which was no small accomplishment. The company has already raised $1.2bn from various partners, from shareholders and by debt, giving it plenty of firepower to progress the initial stages of the mine’s development.

As part of the fundraising process, management has moved Sirius’s shares from the Alternative Investment Market to the main market, a move that should allow more funds to buy into the group’s success story. Sirius needs to raise another $1.7bn to finish the construction of the potash mine, and the good news is, considering the prospective profit margins available here, the company should quite quickly be able to raise this additional finance.

Guaranteed profit

Sirius already has many agreements in place with companies around the world to buy its polyhalite (a premium version of potash that does more to boost crop yields than the basic version) at a price of $145 a tonne. Customers have agreed to buy 8.1m tonnes of the stuff every year at this price.

The good news for Sirius and its shareholders is that at $145 a tonne, the company is booking a gross profit margin of nearly 400% on estimated production costs of $30 a tonne. Based on these figures, Sirius already has contracts in place giving the company an initial $1.2bn in annual revenue.

To mine the required 8.1m tonnes, it would cost the company an estimated $243m at the price of $30 per tonne giving an estimated profit before depreciation, admin, interest and tax costs of just under $960m. Over the long term, the company is targeting production of 20m tonnes a year, giving an estimated profit of $2.4bn based on the above numbers.

Cash cow

These are just back-of-the-envelope estimates, but they show just how profitable Sirius could become. And even in the base case scenario of production of 8.1m tonnes per annum, the company could be a dividend champion.

Excluding the non-cash cost of depreciation, assuming a 5% interest bill on $3bn borrowing (an extremely pessimistic scenario) and that Sirius’s management can keep corporate admin costs to under $100m per annum, the company is on track to report an estimated net profit of around $500m, or £380m per year. This estimate implies an earnings yield of around 29% on the firm’s current market capitalisation of £1.3bn.

Rupert Hargreaves has no position in any shares mentioned. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

A pastel colored growing graph with rising rocket.
Investing Articles

Here’s how I’m targeting £12,959 a year in my retirement from £20,000 in this ultra-high yielding FTSE 100 income share…

Analysts forecast this high-yield FTSE 100 income share will deliver rising dividends and capital gains, making it a powerful long-term…

Read more »

A senior man using hiking poles, on a hike on a coastal path along the coastline of Cornwall. He is looking away from the camera at the view.
Investing Articles

Is Diageo quietly turning into a top dividend share like British American Tobacco?

Smoking may be dying out but British American Tobacco remains a top dividend share. Harvey Jones wonders if ailing spirits…

Read more »

Young woman holding up three fingers
Investing Articles

Just released: our 3 top income-focused stocks to consider buying in December [PREMIUM PICKS]

Our goal here is to highlight some of our past recommendations that we think are of particular interest today, due…

Read more »

Person holding magnifying glass over important document, reading the small print
Investing Articles

Tesco’s share price: is boring brilliant?

Tesco delivers steady profits, dividends, and market share gains. So is its share price undervaluing the resilience of Britain’s biggest…

Read more »

Businessman hand stacking money coins with virtual percentage icons
Investing Articles

1 huge takeaway from the Martin Lewis investing presentation

Martin Lewis showed how returns from stocks have smashed the returns from cash savings over the last decade. But here’s…

Read more »

Middle aged businesswoman using laptop while working from home
Investing For Beginners

I think the best days for Lloyds’ share price are over. Here’s why

Jon Smith explains why Lloyds' share price could come under increasing pressure over the coming year, with factors including a…

Read more »

A graph made of neon tubes in a room
Investing Articles

£5,000 invested in the FTSE 100 at the start of 2025 is now worth…

Looking to invest in the FTSE 100? Royston Wild believes buying individual shares could be the best way to target…

Read more »

Thoughtful man using his phone while riding on a train and looking through the window
Investing Articles

Can the BAE share price do it again in 2026?

The BAE share price has been in good form in 2025. But Paul Summers says a high valuation might be…

Read more »