Foreign aviation suppliers are competing for business opportunities arising from China's plans to build a jumbo jet.

The nation is set to unveil a model for the commercial jet in two weeks.

Commercial Aircraft Corporation of China Ltd (COMAC), which is in charge of the domestic jumbo jet project, will present a miniature of the homemade passenger jet C919 at the Asian Aerospace International Expo and Congress in Hong Kong between Sept 8 and 10, the expo organizer said.