If you want to work with a supplier who will work with you as a partner so both parties can benefit, you have a better chance of this with smaller, family-owned businesses than large holding companies.
Booked in December, the order calls for 75 737 Max 8 planes at a value of $8.25 billion.
Four questions manufacturers should ask themselves if they want to develop loyal - and more valuable - customers.
China Southern and its subsidiaries have ordered more than $15 billion of new aircraft from Boeing and Airbus Group SE in the past year.
Lockheed Martin beat out Raytheon for the contract.