Apple’s primary manufacturer, Foxconn, still cannot keep up with iPhone 5 demand, nearly seven weeks after the handset first went on sale, according to Reuters.

At a business forum, Foxconn Chairman Terry Gou explained, “It’s not easy to make the iPhones. We are falling short of meeting the huge demand.”

One of the reasons for this could be Apple’s decision in late September to “tighten production standards” for the sixth generation handset. The change was made to eliminate the so-called “scuffgate” issue that affected some iPhone units.

Introduced on Sept. 21, the iPhone 5 is the first to not include Google Maps as its Maps backbone. The sixth generation handset is also the first to include a smaller connector, Lightning. Previous iOS devices included a 30-pin connector. Because of this, customers must purchase adapters in order to use the iPhone 5 with legacy accessories such as car chargers and speaker systems.