This week, the pressure on engineered quartz in the US is coming from several directions. California’s proposed ban remains unresolved, insurers are challenging silicosis coverage, and renovation surveys suggest customers are already changing their material choices.

The California story needs careful wording. Reports anticipate an October decision, but the published 15 October agenda contains no engineered stone item. Questions have also been raised about whether the Standards Board has the authority to introduce the proposed prohibition. The direction deserves attention, but a confirmed ban and commencement date are different things.

For me, the insurance story is consequential. Liberty Mutual is seeking to deny coverage for silicosis claims against Wilsonart and Architectural Surfaces Group. If those exclusions hold, the financial exposure could remain with the suppliers regardless of what happens with California’s proposal.

Meanwhile, Houzz figures cited this week show engineered quartz’s share of kitchen renovations falling in the US from 43% in 2024 to 32% in 2026. That does not prove health concerns caused the decline, but it suggests the market was shifting before any potential Californian ban.

Having worked through Australia’s transition, I expect several materials to benefit. Fabricators’ capabilities, price and availability will influence which alternatives customers choose. Italy’s warning about structural energy costs is therefore relevant, growing interest in porcelain does not automatically mean straightforward supply or stable pricing.

Shipping presents another mixed picture. Attacks around Hormuz continue to threaten Gulf trade, while the Premier Alliance plans to return selected Europe services through Suez. Shorter shipping schedules would help buyers, provided those routes remain viable.

Elsewhere, Turkey’s Aegean exporters report higher unit values alongside falling export volumes. Egypt is targeting licensing reform and a substantial export increase. Iran’s stone exhibition highlights ambitions that remain far above current exports, while Brazil is extending its search for customers beyond its traditional markets.

Taken together, these stories show why suppliers need to stay close to both their customers and their operating costs. Demand can move before legislation does, insurance can change the economics of a product, and shipping can reshape competitiveness. The businesses that understand those changes early will be better placed to respond without rushing decisions.

Until next week; keep looking beyond the surface.
Alf.

Natural stone façade combines staggered panels and curved corners at Arizona student housing: A newly published case study shows how Fossil Creek Flagstone was used across long elevations and curved corners at Arizona State University’s Herberger student housing project. Gridworx supplied continuous support rails, adjustable anchors and customised curved supports to accommodate varying panel sizes and staggered joints. The project demonstrates how façade engineering can give architects greater freedom with natural stone.

Engineered quartz’s share of US kitchen renovations falls from 43% to 32%: Houzz survey figures cited by Realtor.com show engineered quartz’s share of US kitchen renovations falling from 43% in 2024 to 32% in 2026. Designers and dealers are discussing porcelain, natural stone, acrylic and low-silica engineered materials as alternatives, although the figures do not establish what caused quartz’s decline. The reporting also highlights that natural quartzite can contain high levels of crystalline silica.

Italian ceramics producers warn that persistent energy costs threaten production lines: Confindustria Ceramica has warned that high energy costs have become a structural problem for Italy’s ceramics industry, putting production lines at risk. The association is seeking government support, although the reporting does not quantify confirmed closures or lost output. For porcelain slab buyers, the warning raises questions about future pricing and availability as interest in quartz alternatives grows.

Iran’s stone exhibition highlights a US$5 billion export ambition far above current sales: Iran’s 18th International Stone Exhibition ran in Mahallat-Nimvar from 6–9 October, with organisers describing more than 600 participating companies and extensive block displays. Ahead of the event, the Iran Stone Association outlined potential exports of at least US$5 billion, against approximately US$230 million currently reported. The ambition remains far above present performance, with no post-show commercial results identified in this week’s pack.

California’s proposed engineered stone ban faces questions over legal authority and timing: California’s proposed restriction on fabricating artificial stone containing more than 1% crystalline silica faces questions over whether the Standards Board has the legal authority to introduce it. Although media reports anticipate an October decision, the published 15 October meeting agenda contains no engineered stone item. The final wording, vote date and transition arrangements remain unconfirmed.

Liberty Mutual seeks to deny silicosis coverage for two major surface suppliers: Liberty Mutual insurance units have filed lawsuits seeking to deny coverage for silicosis claims against Wilsonart and Architectural Surfaces Group, citing silica exclusions in their policies. According to Bloomberg Law, each supplier faces more than 100 underlying disease claims. The lawsuits have not resolved coverage, but they highlight the potential financial exposure facing suppliers beyond the regulatory debate.

Pedrini puts automated slab handling in focus for marble processing: Pedrini has published an overview of automated marble handling using its Butterfly B416 and Mantis B419 systems. The equipment integrates loading, unloading and slab transfers into processing lines, with Butterfly also supporting bookmatch workflows. Pedrini highlights reduced manual intervention, more consistent production flow and protection against handling damage.

Stonify updates fabrication software with custom dashboards and flexible product pricing: Stonify’s latest release introduces configurable dashboards, a simplified drawing-to-quote workflow and expanded pricing options for product variants and customer tiers. A new price-checking tool shows which discounts and rules contribute to a customer’s calculated price. The update gives fabrication businesses more control over quoting and the information presented to their teams.

Escalating Hormuz attacks threaten Gulf shipping and stone trade: Reporting on UK Maritime Trade Operations data identified 11 attacks on commercial vessels in a week, including ten in the Strait of Hormuz, with traffic around 75% below pre-conflict levels. Risk adviser Marisks has urged Gulf suppliers to suspend crossings. For stone exporters serving Gulf projects, the escalation adds uncertainty over deliveries, freight costs and the recovery of regional orders.

Premier Alliance plans a Suez return that would shorten two shipping loops by two to three weeks: The Premier Alliance plans to return selected Southeast Asia–North Europe and India–North Europe services to the Red Sea and Suez Canal route. The changes would reduce their full round-trip schedules from 13 weeks to 11 and ten weeks respectively, potentially improving delivery schedules for Europe-bound stone and surface products. The return is selective, with its continuation dependent on security conditions.

Turkey’s Aegean exporters report US$610 million in natural stone sales and higher unit values: Turkey’s Aegean mining exporters’ association reported US$610 million in natural stone exports during January–September, with the US and China its largest stone markets. The report also records a 12.1% decline in export volume, alongside increases of 16% in block stone unit values and 10% in processed stone unit values. Its US$1.65 billion annual target covers the association’s wider mining exports, rather than natural stone alone.

Egypt’s Shaq al-Thoaban stone hub targets licensing reform and US$1 billion in exports: Egypt’s Marble & Granite Division says licensing regularisation at the Shaq al-Thoaban processing hub is targeted for completion by the end of 2026. Its chairman outlined an ambition to reach US$1 billion in exports by the end of 2027, compared with approximately US$350 million reported for 2025. That figure is an industry target, with substantial growth still required to achieve it.

Brazil extends its stone export diversification programme through 2027: Centrorochas and ApexBrasil have outlined further international market development through 2027 under the It’s Natural programme. Activities include European market mapping, buyer attraction, business meetings, exploratory missions and trade fairs, with opportunities described from Egypt to Australia. The programme signals continued efforts to broaden Brazil’s customer base as US tariffs complicate access to its principal export market.

Did you know? Ancient Persian builders joined monumental stonework without mortar.

At Persepolis in modern-day Iran, builders more than 2,500 years ago fitted enormous stone blocks together using precisely prepared joints and iron clamps secured with poured lead. They combined locally quarried light-grey limestone with darker stone brought from a quarry roughly 40 kilometres away.

The surviving stonework is a reminder that Iran’s relationship with quarrying, processing and architectural stone stretches back long before today’s export ambitions.

Till next time,