BEIJING, March 9  -- ICBC Leasing signed a deal with the Commercial Aircraft Corporation of China (COMAC) on Monday to buy 30 of the nation's first domestically produced regional jets -- ARJ21-700.

Neither side revealed the order's value.

ICBC Leasing, a wholly owned subsidiary of Industrial and Commercial Bank of China, is the largest aircraft leasing company in the country. It has owned and managed more than 420 planes.

Jiang Jianqiang, chairman of the bank, said they support the development of China's plane manufacturing sector and civil aviation transportation industry. In 2011, ICBC Leasing ordered 45 of the nation's homegrown C919 passenger jets from COMAC.

The ARJ21, short for Advanced Regional Jet for the 21st Century, is a type of regional airliner designed and manufactured by COMAC. The ARJ21-700 was officially certified by the Civil Aviation Administration of China at the end of last year.

There are 78 seats in a dual-class configuration and 90 seats in a full economy class configuration. Its economic life is designed for 60,000 flying hours or 20 calendar years.

The new deal brings the total order of ARJ21-700 planes to 308.