327993

Analysis

NAICS 327993 is the 2022 national industry for mineral wool manufacturing, part of 32799 (All Other Nonmetallic Mineral Product Manufacturing). Census lists 4 example activities under it in the official index.

Between 2018 and 2023 the number of establishments fell 13% and employment fell 0%. The 2018 count used NAICS 2017, so part of a large move can come from codes being redefined rather than from businesses opening or closing.

By establishments it ranks 4th of the 4 codes at this level within All Other Nonmetallic Mineral Product Manufacturing, with 7.3% of them.

County Business Patterns counts 224 US establishments in this code in 2023, employing 15,343 people at an average annual payroll of $73,105 per employee (57th percentile of national industries). 15% of the establishments have fewer than five employees, which points to larger operations.

Its index entries, the activities Census uses to assign businesses to this code, include fiberglass insulation products manufacturing, insulating batts, fills, or blankets, fiberglass…, mineral wool insulation materials manufacturing and mineral wool products (e.g., board, insulation, tile)….

Its goods appear in 16 statistical lines of the US tariff schedule, mostly under headings 6806 (slag wool, rock wool and similar mineral wools; exfoliated…) and 7019 (glass fibers (including glass wool) and articles thereof…). That link is how import data is matched to domestic producers, for example in trade-remedy cases.