Polarean #POLX CEO Christopher Von Jako shares news of FDA approval to use Xenon MRI in children as young as six, expanding their market and boosting safety credentials. He also updates on the Philips partnership, growing clinical adoption, global expansion, and plans to meet 2025 revenue goals.

It's been a transformational few months for Metals One #MET1, following a re-capitalisation exercise at the start of the year. The company's share price has soared as deals have been struck to acquire new assets in the US, and new exploration programmes have been initiated. Finance director Dan Maling and chairman Craig Moulton talk us through what's been happening, what's going to happen next, and outline their broader vision for the company.

European Green Transition has released full year results this morning, and also announced that Cathal Friel will be moving into a role as executive chairman following the forthcoming AGM. The company continues to believe that its Olserum rare earths project offers a highly attractive opportunity in the current geopolitical context, but will also be looking to execute more M&A transactions in the months ahead. Cathal Friel and Jack Kelly join us to explore the company's prospects and outline the opportunity

Copper, gold, lithium and diamonds: John Meyer is one of London's best-known mining analysts. He's been top-ranked by Extel on several occasions, and is a founding partner of broker SP Angel, one of the more prominent brokers in the small-cap mining scene. In  wide-ranging conversation John talks about the potential for M&A this year, the outlook for smaller caps, how the market's changed over time, which commodities are in and which are out, and where the best places to go mining are.

Blencowe Resources has been making great strides with its Orom-Cross graphite project in Uganda in recent months, and has recently received a new tranche of funding from the US's Development Finance Corporation. We are joined by Blencowe's chief operating officer Iain Wearing and by chief executive Mike Ralston for an update on progress and an overview of the company's plans and strategy regarding drilling, off-take, production rates and its connections into the US, the EU and the UK.

In this week’s smallcap investing show, UK equity analyst & markets commentator Paul Scott & I discussed our latest thoughts on 23 stock ideas.

00:00 Recent buys & sells

02:25 Begbies Traynor

05:25 SDI Group

08:40 SRT Marine

10:20 Watchlist stocks and Spectra Systems

13:05 React

16:30 Bodycote

19:20 Elementis

22:35 Avon Technologies & defence stocks

26:30 M&C Saatchi

30:35 On the Beach

33:30 Pets at home

38:15 Frontier Developments

41:30 Henry Boot

44:05 GetBusy

47:00 Zigup

50:05 Gamma Communications

53:05 Alumasc

55:10 OPG Power

57:40 Integrated Diagnostics Holding

58:30 PZ Cussons

60:40 Curry’s

63:35 DRX

64:55 Funding Circle

66:30 Science Group vs Ricardo

69:05 Seeing Machines

Following on from its £4.865 million raise last week, Poolbeg #POLB has announced that it has received FDA Orphan Drug Designation for POLB 001. Chief executive Jeremy Skillington joins us to tell us what it all means.

In this fascinating discussion, Exec Chairman Patrick Desouza of Water Intelligence #WATR and CEO Will Knell of American Leak Detection take me through last week’s positive & in line Apr'25 YTD trading update.

00:00 Reminder of what the company does, its key USPs, StreamLabs partnership & secular growth drivers

10:05 Update on YTD'25 trading and reason for uplift in April’s performance.

12:20 Importance & scale of partnerships with insurers.

14:45 Accessing US investors, outlook for the rest of the year and closing remarks

Disclosure: I own shares in Water Intelligence, who is also a Vox Markets client.

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Rare earths have been much in the news of late, as the world begins to wake up to Chinese dominance in this particular market. But what are rare earths - are they rare, are they even earths? George Bennett, the chief executive of Rainbow Rare Earths, joins us to discuss the mining, processing, marketing and selling of rare earths, the different types of deposits, and what's real and what's not when it comes to the power politics and the hype that surrounds them.

Cornish Tin is raising new money to go drilling on what could potentially be a huge lithium project in Cornwall. The company is conducting a private placing, but is also allowing retail to come in via the Crowd Cube platform. Sally Norcross-Webb, Cornish Tin's chief executive joins us to talk about the geological potential of the company projects, plans for future exploration and development, and the tax breaks available to investors through the EIS scheme.