Group 231 - Manufacture of glass and glass products

PSIC Group 231 covers Manufacture of glass and glass products. Direct children below it include Manufacture of glass and glass products. It clusters closely related activities and helps compare nearby classes before...

Level Group

Hierarchy depth 3/5

Children 1

Last verified 2026-10-21

Key facts

Code summary

Code 231

Official title Manufacture of glass and glass products

Version PSIC 2019

Source layer PSA / BSP

Parent 23 - Manufacture of other Non-metallic Mineral Products

Section C - Manufacturing

Next step

Child codes

These are the next codes most users should open after this hub page.

2310

Manufacture of glass and glass products

Nearby codes

239

Manufacture of non-metallic mineral products, n.e.c.

About this level

Practical summary

Group 231 sits in the PSIC 2019 hierarchy under C Manufacturing > 23 Manufacture of other Non-metallic Mineral Products. This group usually narrows the choice to a small family of classes such as Manufacture of glass and glass products. It is useful when two or three neighboring activities look similar but should not be collapsed into one code.