The first jet will be delivered in 2013.
COMAC Chairman Zhang Qingwei told media persons that this was the first time Chinese-developed and manufactured regional jets have entered western airline markets.
ARJ21 (Advanced Regional Jet for the 21st Century) was developed independently by China. It has between 78-90 seats and a standard full-passenger flight can go 2,225 kilometers.
The regional jet will make its maiden flight in Shanghai within this month.
A total of 206 ARJ21-700s jets have so far been ordered.