There were 64 companies on AIM whose share price at least doubled in 2025. The top performer was a financials business and the other four of the top five were mining companies.
Fiinu (LON: BANK),
+1,550
The best performer was Fiinu, which has developed the Plugin overdraft that provides customers with an overdraft facility without the requirement to switch banks. This is an example of the potential for open banking.
Testing has started on the white label offering of the Plugin overdraft by Conister Bank, a subsidiary of AIM-quoted Manx Financial, whose share price doubled during the year. The launch is targeted for the first quarter of 2026.
In August, Fiinu acquired Poland-based forex business Everfex to provide a revenue stream and cash flow, Everfex made a pre-tax profit of more than £600,000 for the four months to April 2025. The acquisition will broaden the range of activities of the company and provide opportunities for the Plugin Overdraft product. This resulted in the readmission of the company to AIM. The share price reached 19p and ended the year at 8.25p.
Mkango Resources (LON: MKA)
+485%
There was an initial spike upwards of the share price of Mkango Resources at the beginning of July. This was after it extended a non-binding agreement to reverse its upstream and midstream businesses into Nasdaq shell Crown PropTech Acquisitions, where it will be the majority owner. The acquirer will own the Songwe Hill rare earths project in Malawi and a separation plant in Poland. Mkango Resources will retain the recycling business.
In October, Mkango Resourcesraised £3m at 30p/unit (one share and 0.5 of a warrant exercisable at 45p). This will fund the development of the rare earth recycling and manufacturing sites in the UK and Germany.
In December, joint venture HyProMag USA, a rare earth recycling and processing business, expanded the Texas hub facility and is planning a listing in the US in around one year’s time. The NPV of the Texas project and two other sites is $409m based on current market prices. The figure is much higher based on forecast prices. Up front capital costs are $142m.
The share price peaked at 69p in October and ended the year at 46.5p.
Strategic Minerals (LON: SML)
+470%
The share price started to take off in October and peaked at 1.81p, before ending 2025 at 1.425p. Positive drilling results for the Redmoor tungsten tin copper project in Cornwall confirmed multiple zones of high-grade tungsten mineralisation. This suggests that Redmoor could be the highest-grade undeveloped tungsten deposit. There are also positive results for copper.
In April, Strategic Minerals had raised £1m at 0.3p/share to develop the Redmoor project and for working capital.
More than 5,000 metres of drilling has been completed at Redmoor with CRD041 intersecting the full extent of the sheeted vein system with visible signs of mineralisation and additional zones. There are further drill holes still to be analysed and metallurgical testing is progressing.
Empire Metals (LON: EEE)
+469%
Empire Metals is developing the Pitfield titanium project in Western Australia. The mineral resource estimate (MRE) totals 2.2 billion tonnes grading 5.1% TiO₂ for 113 million tonnes of contained TiO₂.The share price peaked at 71p in September and ended the year at 39p. Positive drilling news had pushed the share price ahead.
At the end of August, a breakthrough in process development was achieved at the Pitfield project. Recoveries were 77% at the rougher stage and 90% at the cleaning stage. Leach results achieved 98% titanium dissolution. Overall titanium recovery is 67% and this is expected to improve. This is a high purity product.
Following the share price rise, in October £7m was raised at 40p/share. This will pay for additional exploration and project development. Additional cash will come from the sale of 75% of the Eclipse gold project for A$750,000, subject to due diligence.
Bezant Resources (LON: BZT)
+435%
There was an upward trend from early in the year. The first major spike upwards after an update on the sale of 53.4 million Blackstone Minerals shares, raising £1.84m. It still owned 80.6 million shares and Blackstone Minerals subsequently gained regulatory approval in the Philippines for a two-year extension to the Mankayan copper gold project work programme.
Jonathan Swann increased his Bezant Resources stake from 5.19% to 6.57%. The share price reached a peak of 0.11p during October.
Although the share price fell back it rebounded to a new 2025 high of 0.115p at the end of the year. That followed Bezant Resources completing the acquisition of 90% of the company that owns the NLZM processing plant, which is an important part of developing the Hope & Gorob gold project in Namibia.
Before the end o the year, chairman Colin Bird bought 30 million shares at 0.0745p each, five million shares at 0.075p each and 15.2 million shares at 0.0885p each. He owns 6.22% of Bezant Resources.