We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

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.

Why Sirius Minerals plc is a long-term play

You may need the patience of a saint to invest in Sirius Minerals plc (LON: SXX) but one day you should get your reward, says Harvey Jones.

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.

I’m now the proud owner of shares in British potash prospect Sirius Minerals (LSE: SXX), having finally scooped up a handful last week. I’ve been following the stock for a long time waiting for a decent entry point, because this is a long-term investment. That offers both opportunities and threats for investors, as I’ve discovered.

Drill, baby, drill

Sirius is pursuing plans to build one of the world’s largest polyhalite mines right here in Blighty under the North Yorks Moors National Park, then bore a 23-mile tunnel to a purpose-built export berth in Wilton, Teesside. This is clearly a massive job and management has worked hard to secure all the necessary planning consents and raise funds to start the diggers and drillers.

XXX

Sirius has taken on debts of around £3.7bn to fund the work but won’t produce a plateful of potash until 2022 at the earliest. It has raised the money through a mixture of loans, placing new shares and convertible bonds, and there’s the continuing danger of shareholder dilution if costs overrun and it needs to raise more funds from another share issue. That’s a threat and it’s a big one, although not big enough to dissuade me from digging in.

Mineral wealth

Another danger is that news flow is slow. Investors may hear little for months, during which time the share price is likely to drift downwards, as investors get bored, lose interest or spot more enticing prospects. I turned that to my advantage because after spiking to 45p in late August – up 239% over two years – the share price started to drift remorselessly downwards.

News that Sirius was conducting a placing to raise between £330m and £400m at an offer price of between 20p and 30p pushed the share price down to around 20p, which is when I pounced. I thought I was clever at the time but now I don’t quite so smart, with the stock now trading at 18p. However, I’m not overly worried either because there’s been no bad news to pin it on. In fact, there’s been little news at all.

Poly maths

There are good reasons to think that Sirius Minerals could turn your pennies into pounds over the years ahead. The global population continues to rise and people will need feeding, and polyhalite fertiliser will help farmers do that, assuming no better alternative is found. Management estimates the project has a net present value of $15.2bn, with prospective annual earnings of between $1bn and $3bn, yet its market capitalisation is just £730m.

However, more share price volatility seems baked-in. Investors will take short-term profits and move on. Speculators will blow hot and cold. Some will simply lose interest and drift away. I plan to let my initial stake run, regardless of the news flow, because I believe that in five or 10 years time I will reap the rewards. The only question is whether the share price will fall even further to, say, 15p or 10p, and whether I should buy more if it does. I probably will.

Harvey Jones owns shares in Sirius Minerals plc. The Motley Fool UK has no position in any of the shares mentioned. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

Friends and sisters exploring the outdoors together in Cornwall. They are standing with their arms around each other at the coast.
Investing Articles

£503 buys 14 shares in this FTSE 250 stock that returned 23.9% annually for the last 15 years

This FTSE 250 stock has averaged a huge return for 15 years. At today's price, £503 buys 14 shares. But…

Read more »

Black woman using loudspeaker to be heard
Investing Articles

£1,000 buys 25 shares in this FTSE 100 stock that’s returned 29.2% annually for the last 10 years

This FTSE 100 mining stock has returned close to 30% a year for a decade. At 3,995p, £1,000 buys 25…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

Down 47%, is this growth stock finally worth buying in May?

With a £288m order book and a hidden pipeline of defence and nuclear contracts, is this growth stock now too…

Read more »

House models and one with REIT - standing for real estate investment trust - written on it.
Investing Articles

2 REITs yielding 7%+ to consider for passive income in 2026

A REIT backed by the NHS and another backed by Tesco and Sainsbury's with both yielding 7%+. Here's why I'm…

Read more »

Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.
Investing Articles

Just 97 shares of this UK dividend stock generate £238 in passive income

A 5.7% yield, £238 in passive income from just 97 shares, and one of the most divisive dividend stocks on…

Read more »

ISA coins
Investing Articles

£10,000 in an ISA generates a second income of…

The London Stock Exchange is home to some of the world's most generous dividends. But how big a second income…

Read more »

Shot of a senior man drinking coffee and looking thoughtfully out of a window
Investing Articles

Expert recommendations: 2 top income stocks yielding 7%+!

With yields of 7.2% and 7.8% respectively, these two income stocks are catching the eyes of institutional analysts. Should investors…

Read more »

Illustration of flames over a black background
Investing Articles

3 top income-focused stocks to buy in May 2026, according to experts

Looking for a stock to buy for income in May 2026? Experts have flagged these three UK dividend shares as…

Read more »