Qatar Airways is ordering up to 13 Airbus A330-200 freighters.
The airline is placing five firm orders and taking options on another eight.
It will take delivery of the aircraft from next year, with two arriving in 2014.
Qatar has not given an engine selection. Chief executive Akbar Al Baker says he will not disclose the engine choice until a deal is signed.
Doha-based Qatar already operates three of the type.