Originally, the trade union includes 6 sections: water management section, wood processing section, furniture section, forestry section, forest-construction section and a section of vocational education. Later on, a cellulose-paper section was added, which, as a section representing woodworking companies, was separated from the Trade union of chemists.

After the transformation of enterprises and the discontinuation of production in some companies, trade union had to deal with the reduction of the membership base and it had to merge the individual sections. There are currently 5 sections in the trade union: