Chengdu Airlines (EU, Chengdu) says it hopes to take delivery and commence operations with its first ARJ21-700s at the end of 2014. A subsidiary of Sichuan Airlines (3U, Chengdu), Chengdu has thirty of the twinjets on order from Comac (Shanghai Pudong) and is the type's launch customer. Chengdu Airlines was due to receive its first aircraft by the end of 2011, but persistent delays in the certification process have resulted in that date being postponed more than twice.