Mar 01, 2010. /Lesprom Network/. The STI Group has opened a new factory for folding boxes, in the western Romanian city of Cluj-Napoca, company said in a press release received by Lesprom Network. STI Group now has a fourth location for folding cardboard boxes in Europe and is catching up with the leading folding box providers in Europe. The STI Group will first offer packaging solutions and then also display solutions for the Romanian and southern European market. As a first step, a complete integrated production line for folding boxes was installed in STI Packaging RO SRL; to begin with, 30 staff are here operating in shifts, the company said.