Commercial Aircraft Corp of China Ltd said on Monday that it had received six orders for the ARJ21, the China-made regional passenger airliner, at the Farnborough International Airshow in the United Kingdom.

The new orders, from three clients, boost the total orders for the ARJ21 to 258. The aircraft is expected to get airworthiness certification from the authorities by the end of the year, said company officials.

Yanshang Corp, a Shanghai-based company involved in finance, real estate, international trade, automobile and law businesses, signed an agreement to purchase an ARJ21 and is expected to be the first launch customer for the business jet. Nanshan Group, based in Shandong province, also signed a purchase agreement for two of the jets.