In 1968, NSG unexpectedly received a request for technical assistance from the Iranian glass manufacturer Ghazvin Glass Company. After NSG’s on-site training, Ghazvin was able to turn around its production to generate profit. In 1970, NSG acquired 25% stake in Ghazvin, the highest ratio allowed at the time for foreign investors. In January 2010, Ghazvin began operating its first float line with NSG’s technical support.