Commercial production is based on p-xylene feedstock.
Small quantities of DMT are regenerated from recycled PET waste. Celanese' Wilmington plant can produce 350 million pounds of PTA from the DMT it makes. DuPont is expected to build additional world-scale PTA capacity in the US, though no definitive plan has been announced. Globally, a return to near double-digit growth in both of these markets is expected by early in the new century. PBT and PET engineering resins, including alloys and blends, are growing at 6 to 8 percent annually.