Cut Stone & Stone Product Manufacturers NAICS 327991

Apr 21, 2026 - ISFA Shop Licensing Certification Plan

• Seeking to head off a physician-backed petition calling for an outright ban on engineered stone fabrication in California, the International Surface Fabricators Association has introduced a shop licensing and certification program focused on safety standards, training, and dust control, Stone World reports. Proposed silica safety regulations are increasing compliance pressure and operational costs for the cut stone and stone product industry, particularly for engineered stone fabricators. For manufacturers, the impact of these regulations includes higher compliance and training costs to meet stricter silica exposure standards, potential restrictions on material access tied to certification status, and increased need for investment in safety equipment and processes. While the ISFA program may help avoid outright bans, it introduces new operational requirements and oversight. Overall, tightening regulations are likely to raise costs, reshape industry practices, and accelerate consolidation, as smaller or noncompliant shops struggle to meet evolving safety standards.
• Brazil’s exports of natural stone jumped by 20% between January and October to $1.24 billion, despite steep US tariffs of up to 50% on granite, marble, and soapstone, according to the Brazilian Natural Stone Association. Still, the levies caused sharp declines in shipments of materials most relevant to US stone product manufacturers, with granite exports falling 14.7%, marble down 9.8%, and soapstone plunging 54.6%. Only quartzite, which is seeing significant growth, especially for kitchen and bathroom countertops, is exempt from US tariffs. Lower volumes of tariff‑impacted Brazilian stone ease competitive pressure on US producers of cut stone, while makers of stone products that rely on Brazilian exports face tighter supplies and higher costs, especially for granite and marble. While tariff turmoil continues, US producers should look to diversify sourcing away from Brazil and strengthen their domestic supply chains.

• The 50% tariff on imports from Brazil that took effect in August 2025 could have "catastrophic results” on the countertop sector in residential construction, Stone World warns. According to the Natural Stone Institute (NSI), the most popular natural stone countertop materials are geologically present only in Brazil and the color and color patterns of domestic substitutes make them unsuitable for residential countertop construction. The lack of domestic alternatives makes Brazilian stones for countertops irreplaceable. Moreover, companies with existing contracts aren’t able to adjust them to account for the increased costs due to the higher tariffs, eroding or erasing their profit margins. According to NSI, more than 500 US stone distributors import stone from Brazil. India and China, other targets of the administration’s tariff wrath, are also major importers of stone to the US.
• Producer prices for cut stone and stone product manufacturers rose 5.4% in February compared to a year ago, after inching up 0.4% in the previous February-versus-February annual comparison, according to the latest US Bureau of Labor Statistics data. The industry producer price is sitting at a record high level following a prolonged steady climb fueled by a combination of higher input costs, energy inflation, and strong construction demand. Employment by lime, gypsum, and other nonmetallic mineral product manufacturers remained flat year over year in January, while in February the average industry wage rose 4.8% YoY to $28.82 per hour, easing from its peak in November, BLS data show.