South Korea opens bidding on $7.3 bn fighter jet deal

South Korea formally opened bidding Tuesday on a $7.3 billion deal to provide 60 advanced fighter planes, with three aviation giants vying for what is the Asian nation's largest defence contract to date.
US companies Boeing and Lockheed Martin and the European aerospace consortium EADS are in the running, and all have prefaced their bids with various sweeteners to try and edge out their rivals.
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