333511

Analysis

NAICS 333511 is the 2022 national industry for industrial mold manufacturing, part of 33351 (Metalworking Machinery Manufacturing). Census lists 7 example activities under it in the official index.

Between 2018 and 2023 the number of establishments fell 15% and employment fell 14%. 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.

County Business Patterns counts 1,252 US establishments in this code in 2023, employing 30,855 people at an average annual payroll of $62,205 per employee (37th percentile of national industries). 30% of the establishments have fewer than five employees, which is close to the national mix.

Its index entries, the activities Census uses to assign businesses to this code, include die-casting dies manufacturing, foundry casting molds manufacturing, industrial molds (except steel ingot) manufacturing and molds (except steel ingot), industrial, manufacturing, among 7 in all.

Its goods appear in 17 statistical lines of the US tariff schedule, mostly under headings 8480 (molding boxes for metal foundry; mold bases; molding…) and 8454 (converters, ladles, ingot molds and casting machines, of a…). That link is how import data is matched to domestic producers, for example in trade-remedy cases.

For example, manufacturing casting molds for steel ingots are classified in 331511 (Iron Foundries) instead.