The German manufacturer Behr Hella Thermoconztrol has expanded its production in Bulgaria near the capital Sofia. BHTC invested $18.1m in its production base located in the Sofia-Bozhurishte industrial zone. By the end of 2020 roughly 400 people will be added to production at the 7,500 sqm facility which includes offices, laboratories, storage space and technical service zones. The car parts supplier will produce control panels and air conditioning units and climate control systems.