Depending on which source you believe, there are around 20 aircraft that have rolled off the production line so far. Con numbers and registrations are unknown for a few aircraft, but the following list is up-to-date as of January 2007.
Aircraft are listed by c/n, reg and operator:
0101 B-3425 Sichuan Airlines
0102 B-3430 Wuhan Airlines
0103 B-3431 Wuhan Airlines
0104 [unknown] Chinese Air Force
0105 B-3432 Wuhan Airlines
0201 B-4071 China United Airlines
0202 B-3426 Sichuan Airlines
0203 B-3429 Xian Aircraft (demonstrator)
0204 B-4072 China United Airlines
0302 Z-WPJ Air Zimbabwe
0303 Z-WPK Air Zimbabwe
0304 Z-WPL Air Zimbabwe
0401 AF607 Zambian Air Force
0402 RDPL-34168 Laos Airlines
0403 RDPL-34169 Laos Airlines
0404 AF608 Zambian Air Force
Merpati are due to take delivery of their first aircraft this month - c/n and reg are unknown at this point. For further info, the 'official' MA-60 site is worth a read - http://www.ma60.com/
Titch
Vidi, Vici, Veni. I saw, I conquered, I came.