Is Sirius Minerals a bargain buy or a value trap?

Sirius Minerals plc (LON: SXX) is a company on the ropes, but is there a glimmer of hope for brave investors?

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.

The Sirius Minerals (LSE: SXX) share price went into freefall on news that it pulled its $500m bond sale at the beginning of August, with the price falling over 30% in the month to date. The company blamed ‘current market conditions’ for the suspension.

The bond sale was crucial in allowing the company to access a $2.5billion facility agreed by JP Morgan, and finance the construction of a polyhalite mine in the North Yorkshire Moors.

Mining companies are inherently risky for investors. Typically, it takes some time before the mining company reaches peak levels of output and cash flow stabilises. Production is expected to start at the Woodsmith mine in 2021 and will ramp up to 10 million tonnes per annum in 2024, with the hope to double output to 20 million tonnes per annum in 2029.

Sirius Minerals has confirmed that it has secured peak supply agreement aggregate volume of 11.7 million tonnes per annum of POLY4 in Europe, Southeast Asia, China, Africa, North America and South America.

This all sounds promising. However, this makes expected cash flows incredibly difficult for investors and lenders to visualise, as the sales agreements are for when the Woodsmith Mine is running at peak supply. 10 years is an incredibly long timeframe to assess future cash flows, especially when production has not yet started.

Value investors may see the recent plummet of the share price as a buying opportunity. However, they should be cautious about buying a part of the business at the moment. For a start, POLY4 has been through some degree of testing, but it is not commercially proven. 

In addition to this, it is crunch time financially for the company, as chief executive Chris Fraser has insisted the business will be able to sell the bond after the US-China trade tensions ease, next month. This will do little to reassure investors. If Sirius Minerals fails to sell the bond and US-China trade tensions fail to progress, what will happen? JP Morgan may lose interest and decide to pull the funding, putting the whole project at risk.

Being the world’s largest mine for polyhalite, the project at Woodsmith Mine was always going to swallow up large amounts of capital. For a company not yet generating cash flows, funding is critical for Sirius Minerals. 

Buying shares today in Sirius Minerals is a massive risk. The uncertainty surrounding the project’s funding concerns me, as does the timeframe for when the output is at full swing and the business starts generating cash.

If the golden rule of value investing is to not lose money, a true value investor would probably pass Sirius Minerals off as a value trap and not a bargain buy. For me, it’s one to avoid for now.

T Sligo has no position in any of the shares mentioned. The Motley Fool UK has no position in any of the 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

Investing Articles

Here are the latest predictions for the Lloyds share price in 2026

Dr James Fox takes a closer look at analysts' forecasts for the Lloyds share price with the stock already high…

Read more »

Investing Articles

What’s cheaper than Nvidia stock as we move into 2026? Tesla, Alphabet, Micron?

Dr James Fox takes a closer look at Nvidia stock as we move into 2026. The stock has come under…

Read more »

Investing Articles

FTSE 100 banks: which one is best value for 2026?

Dr James Fox uses quantitive metics to compare FTSE 100 banks and explores which might be best value going into…

Read more »

Investing Articles

Up 425% in 2025, surely this FTSE 100 superstar can’t repeat the feat in 2026?

Holding Fresnillo has been a wild ride, but even after incredible growth, this FTSE 100 miner could deliver more for…

Read more »

Middle-aged white man pulling an aggrieved face while looking at a screen
Growth Shares

Here’s how little £10,000 invested in Aston Martin shares at the start of 2025 is now worth…

Paul Summers takes a closer look at some scary numbers for anyone who bought Aston Martin shares at the beginning…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

UK stocks: the contrarian choice for 2026

UK stocks aren’t the consensus choice for investors at the moment. But some smart money managers who are looking to…

Read more »

Investing Articles

Down 20% in 2025, shares in this under-the-radar UK defence tech firm could be set for a strong 2026

Cohort shares are down 20% this year, but NATO spending increases could offer UK investors a huge potential opportunity going…

Read more »

Young Caucasian woman with pink her studying from her laptop screen
Investing Articles

New to investing? Here’s Warren Buffett’s strategy for starting from scratch

Warren Buffett says he could find opportunities to earn a 50% annual return in the stock market if he was…

Read more »