Just to avoid confusion Hahn Air is not an airline, as such, and has no connection with the new British carrier Hans Airways.
See BTN 5 September ON TOUR: Hans Airways gets ready.

Established in 1999 Hahn Air is essentially a charter broker offering indirect distribution services to other airlines and thus provides ticketing solutions to 100,000 travel agencies in 190 markets. With more than 20 years of experience, the company has established itself as the market leader. Today, Hahn Air’s network encompasses more than 350 partner airlines.  

Hahn Air is a licensed carrier with its fleet of two Düsseldorf-based Cessna Citations used for charter services.

Hahn Air has now introduced Res360, a cloud-based Passenger Service System (PSS). This will allow airlines looking to enter the world of indirect distribution to obtain all essential components from one single source.

“We are pleased to partner with Hahn Air in offering the Res360 suite”, said Frank Kays, CEO at InteliSys. “Our long-standing experience in accelerating airline growth and maximising distribution capacities, paired with Hahn Air’s industry expertise and system connectivity, creates an unbeatable combination”.

www.hahnair.com