Open in interactive viewer → charts, metric popovers & call review

SigmaRoc Buys Its Way Into Europe's Electric-Arc Steel Story

A solid H1 masks the real signal: a 6x-multiple deal that pushes an aggregates-and-lime compounder into scarce dolime — and into the green-steel supply chain.
SRC.L · Earnings Call · 2026-09-07

A strong half — but the acquisition is the point

SigmaRoc's H1 2026 was, on the numbers, a good old-fashioned compounder print: EBITDA up 11.3%, EPS up 12.2%, EBITDA margins at 25.1% (a 200bps advance), leverage back to 1.66x at the bottom of the target band, and ROIC near 12%. “Fantastic first half of 2026. Strong results, EBITDA up 11.3%, EPS up 12.2%. Margins, EBITDA margins at 25.1% and evolution of 200 basis points.” — Max Vermorken, CEO · 2026-09-07 But the thing that actually changed is not the P&L — it is the Dolomitas Group purchase announced the same morning. That deal drags a genuinely new keyword cluster to the top of SigmaRoc's transcript: Dolomitas Group, dolomitic limestone, electric arc furnace, and Dolime. These sit alongside the highest-momentum gainers of the quarter — limestone, steel, Lithuania — and they are the reason this dossier is worth reading.

Why dolime is a strategically interesting material

SigmaRoc has historically been an aggregates-and-lime story. Dolomitas makes it something adjacent and scarcer: a producer of dolime, the magnesium-bearing cousin of lime. Dolime's killer application is electric-arc-furnace steel, where it protects the refractory lining from degradation. “Dolime, which is lime made from dolomitic limestone or dolomite, is an essential ingredient in electric arc furnace-based steel. It is essential because it protects a refractory brick, the lining in that electric arc furnace from degradation as you produce steel.” — Max Vermorken, CEO · 2026-09-07 The macro hook is that Europe's steelmakers got quotas and tariffs that made indigenous production more attractive — and, per management, dolime volumes are forecast to grow around 4% a year, outpacing the 1%-1.5% the group normally assumes. That is a secular tailwind, not a cyclical one. The economics look good too: EUR 70m turnover, a 25.7% margin, EUR 18m of EBITDA, bought for EUR 110m — a 6x multiple that management calls an attractive multiple and immediately earnings-enhancing.

Green steel, industrial strength — and a construction market still asleep

The reason the deal lands now is that SigmaRoc's industrial end markets are quietly outperforming its construction book. Industrial and environmental applications both grew (the environmental segment up 7%), powered partly by steel demand. Construction, by contrast, is 42% of revenue and still dragging. “The residential market is not... Well, it depends. There are pockets in those countries where it is different... Residential markets are tough. There is an increase in permitting and so forth, but it does not translate yet in actual house building. The U.K. is very bad.” — Max Vermorken, CEO · 2026-09-07 This is the central tension: the group is buying into one of the few genuinely growing industrial materials niches while its largest single end market offers only optionality on a recovery that has been pending for roughly four years. The organic signal, however, is improving. Core volumes rose 1% — the first increase in years — after a stretch where core volume increase had been absent and volumes eroded. Management also flagged that high-grade volume was held back partly by high grade contract discontinuations, a mix issue rather than a demand collapse.

Capital allocation, hedging, and the caution that matters

The most telling detail is who is taking the consideration. The Dolomitas sellers asked to be paid partly in shares, at 129p — a premium to the price at the time of the deal. “if we can buy companies as we have just done this morning with Dolomitas, it is obviously the most attractive way to spend the free cash that we generate. Very attractive business, very attractive multiples.” — Max Vermorken, CEO · 2026-09-07 That is a founder-owner vote of confidence, and management is explicit that dividends stay firmly second in the queue while the M&A pipeline — in their words "full," with a deal expected within 12 months — keeps throwing up 6x assets. The Synergies program continues to grind forward: EUR 5m incremental in H1, taking the delivered total toward EUR 60m, with roughly EUR 15m still to come. And the energy question is handled with unusual discipline — hedges were layered ahead of price moves, so margins expanded over 200bps even during the Middle East energy spike. “Today, what we don't want to do is lock ourselves in at prices that are at current levels. We'll have a different approach now towards hedging, more layer based than at a moment in time.” — Jan Van Beek, CFO · 2026-09-07 Management's guidance caution for H2 was framed as prudence on geopolitics, not a deterioration in trading — H2 started ahead of last year.

Dolime itself is a fantastic material to be part of. It is scarce when you look at the European footprint. There's not many pockets of this material available. We now start to be part of that club that produces this product.

Max Vermorken, CEO · 2026-09-07
The caveat: with no usable tape data on the shares, we cannot see whether the market has begun to price the re-rating this story deserves. For now the evidence is intra-company — a new, scarce-materials growth vector bolted onto a financially disciplined base. That is a meaningful shift in what SigmaRoc is, even if the print itself looked reassuringly ordinary.