327420  Gypsum Product Manufacturing 

This U.S. industry comprises establishments primarily engaged in
manufacturing gypsum products such as wallboard, plaster, plasterboard,
molding, ornamental moldings, statuary, and architectural plaster work.
Gypsum product manufacturing establishments may mine, quarry, or
purchase gypsum.

The data published with NAICS code 327420  include the following
SIC industries:

3275 Gypsum products
3299 Nonmetallic mineral products, n.e.c. (pt)