Plastics executives offer 22 takes on NPE2021 Orange County Convention Center in Orlando, Fla., at the start of NPE 2015. Plastics industry movers, shakers and makers have been waiting almost three years to meet again in Orlando, Fla., and fill the Orange County Convention Center with the newest machines for processing a myriad of materials. Put on by the Washington-based Plastics Industry Association, NPE, initially called the National Plastics Exhibition, dates back to 1946. The last event — NPE2018 — set records: 2,174 exhibiting companies in more than 1.2 million net square feet of sold-out exhibit floor space. A total of 56,034 people registered to attend NPE2018, which was up 1.7 percent from the previous show in 2015 and was the largest number since the show moved to Orlando in 2012.