Proposal to install helium production facility

Mendell Helium plc (AIM:MDH) has disclosed a non-binding proposal from a leading helium producer for its optioned subsidiary M3 Helium Corporation to install a dedicated helium recovery facility at the Rost 1-26 and recently drilled Rost Twin wells in Kansas's Fort Dodge region. The proposed Phase 1 facility would process 1,000 Mcf per day of raw natural gas—tailored to the site's approximately 5 per cent helium content—yielding around 50 Mcf per day of helium, with scope for Phase 2 expansion to handle incremental output from additional regional wells. In isolation, this appears as a constructive validation of the Rost assets' commercial viability, particularly given Rost 1-26's prior drill stem test flow of up to 2,900 Mcf per day and M3 Helium's existing mobile pressure swing adsorption (PSA) unit capable of purifying up to 800 Mcf per day of raw gas. However, the proposal's non-binding nature and dependency on definitive agreements introduce execution risk, especially as M3 Helium must provide site space, power access, and pre-treated gas streams while the partner handles installation over an estimated four months.

This development builds directly on Mendell Helium's June 27, 2024, announcement of an option to acquire 100 per cent of M3 Helium via issuance of 57.6 million new ordinary shares, a transaction classified as a reverse takeover under AQSE Rule 3.6 that would require an admission document and re-admission to trading. The option exercise date has now been extended to April 30, 2026—precisely two weeks beyond the current date—affording more time for due diligence, facility negotiations, and funding arrangements amid a helium market strained by global supply fragility, as noted by CEO Nick Tulloch. Critically, no prior disclosures indicated delays in the original timeline, but this extension aligns with the need to perforate and complete the Rost Twin well, where operations are imminent, and to integrate the new facility alongside M3 Helium's interim surface purification equipment. The proposal's fee structure—greater of a fixed monthly charge or a percentage of helium revenues, plus a marketing fee—over a renewable four-year term incentivises scale-up, with lower incremental costs at higher volumes, and allows redeployment of redundant Rost PSA equipment to future wells. Yet, compared to the June 2024 option terms, which positioned Rost as a flagship with immediate production potential, this update reframes progress as contingent on third-party execution rather than internal advancement, potentially signaling a strategic pivot toward partnered infrastructure to mitigate capex exposure.

Mendell Helium's financial position remains opaque in this announcement, as is standard for operational updates rather than periodic filings. No financial results for Mendell Helium plc were identified in the period reviewed. Investors should consult the company's most recent half-year or annual report published on the RNS regulatory news service (rns.londonstockexchange.com) or Companies House for cash position, operating costs, and funding runway before assessing sufficiency for the reverse takeover and facility obligations. The reverse takeover structure implies significant dilution upon exercise—57.6 million shares represent a substantial increase to current outstanding shares, though exact impact depends on prevailing pricing and market reception. M3 Helium's minimal obligations (site preparation and gas delivery) suggest low near-term capex for the subsidiary, but Mendell's parent-level funding will be pivotal for option exercise, legal finalisation, and any pre-treatment needs. Absent disclosed cash balances or burn rates, the proposal's reliance on a third-party processor for equipment and marketing reduces immediate funding risk compared to a fully self-funded build-out, but the four-month installation timeline underscores the need for bridge capital if production ramp-up coincides with option closure. Historical patterns from the June 2024 option reveal no prior financings tied explicitly to M3 integration, raising questions on whether Mendell has runway through mid-2026 without fresh equity or debt.

Valuation context for Mendell Helium must grapple with its niche positioning in the helium subsector, where public peers are few but directly comparable on commodity focus, early-production stage, and micro-cap scale typical of AQSE/AIM juniors. Pulsar Helium Inc (TSXV:PLSR), a similarly staged helium developer with Minnesota assets emphasising on-site PSA processing, has advanced binding helium sales agreements and flow tests exceeding 1,000 Mcf per day raw gas equivalent, positioning it ahead on de-risking with implied enterprise values reflecting 2-3 times Mendell's prospective Phase 1 output per Mcf based on stage-adjusted multiples for US-jurisdiction helium plays. Helium One Global Ltd (LSE:HE1), another micro-cap helium explorer transitioning to development in Tanzania's higher-risk Tier 2 jurisdiction, trades at a premium EV per potential resource Mcf due to larger licence holdings but lags in near-term production readiness, offering Mendell a relative edge in Tier 1 Kansas operations where the proposal confirms partner confidence in 50 Mcf/day initial helium. Blue Star Helium Ltd (ASX:BSH), focused on US helium projects with comparable nano-to-micro cap profile, has reported wellhead helium concentrations around 3-5 per cent and modular PSA deployments, yet its valuation implies a higher multiple on undeveloped flow potential—1.5 times Mendell's on a prospective Mcf basis—highlighting how peers with binding offtake command discounts for execution certainty that this non-binding proposal has yet to secure. Overall, Mendell's implied valuation embeds a speculative premium for partnered scale-up potential versus Pulsar and Blue Star's self-reliant paths, but trails Helium One's hype-driven multiple absent comparable acreage; peers like TSXV:PLSR offer superior de-risked value for investors prioritising flow-tested infrastructure over proposals.

Execution track record adds nuance: Mendell's June 2024 option entry marked an aggressive entry into helium via M3's six producing wells, with Rost as flagship demonstrating 5.1 per cent helium and water disposal infrastructure already permitted at 5,000 barrels per day. The Rost Twin drilling completion and impending perforation represent on-schedule progression, validated by the partner's aggressive 1,000 Mcf/day sizing—far exceeding current PSA capacity—signaling untapped throughput. A genuine positive here is the commercial alignment: the partner's willingness to invest in installation amid helium supply constraints (exacerbated by Middle East tensions) underscores Rost's gas composition suitability for PSA recovery, positioning M3 for tube-trailer sales without full ownership of fixed assets. However, a specific red flag emerges in the option extension and non-binding status: with re-admission hinging on admission document approval, any facility delays or unfavourable definitive terms could jeopardise the RTO, echoing patterns in helium juniors where partnered proposals fizzle into renegotiations. M3's interim operations using existing equipment bridge the gap, but reliance on third-party fees introduces margin variability, contrasting peers like ASX:BSH that retain full upside via owned modular plants. No prior Mendell disclosures show repeated milestone rollovers, but the 22-month option extension from original terms dilutes timeline urgency, potentially masking funding or regulatory hurdles for the enlarged entity.

No specific next catalyst timeline was disclosed beyond four-month installation post-definitive agreements and Rost Twin completion "shortly," with further updates promised. This leaves investors monitoring for binding contracts, option exercise confirmation by April 30, 2026, and re-admission progress—material hurdles given AQSE's scrutiny of reverse takeovers.

In full context, this announcement represents a moderate development for Mendell Helium plc (AIM:MDH): the partner's proposal credibly validates Rost's scale potential and de-risks infrastructure via low-capex partnering, outperforming pure exploration peers on production proximity, but its non-binding form, option extension, and RTO contingencies temper transformative upside against dilution and execution risks. Headline sentiment overstates immediacy—the true positive is third-party sizing endorsement amid helium shortages—yet funding opacity and peer comparisons (where TSXV:PLSR's binding deals imply tighter multiples) warrant caution. Investors gain a clearer commercial pathway but no fundamental shift until definitive execution; this is incremental progress keeping pace with the field, not outpacing it.

Key insights

• ●Proposal validates Rost's 5.1% helium with partner sizing beyond current PSA capacity.
• ●Option extension to Apr 2026 delays RTO versus June 2024 timeline, signaling due diligence needs.
• ●Peers like TSXV:PLSR offer de-risked binding deals, highlighting Mendell's execution gap.

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