Advances in commercially manufactured thin-film solar modules with a semiconductor made of copper, indium, gallium and selenium (CIGS) have been impressive of late. The industry's improvements in recent years will be the marquee topic when international experts convene at the ninth IW-CIGSTech workshop in Stuttgart on June 18, 2018. The current status of CIGS thin-film technology and what manufacturers, suppliers, mechanical engineering companies and research institutes can hope to achieve in future are to also feature prominently in these discussions. Organized by the Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg (ZSW) and the Helmholtz-Zentrum Berlin für Materialien und Energie (HZB), this annual workshop caters to science, technology and industry experts.