Amex CEO didn't seem too interested in partnering with Apple when he was asked about it during the Goldman Sachs U.S. Financial Services Conference last month.American Express won’t give up transaction fees, so Apple will need to convince Amex on how it’ll be a better deal than what Goldman Sachs received.

Amex CEO talks co-brand partnerships after Apple reports
The card issuer’s premium designation isn’t compatible with all potential card issuing partners, Amex CEO Steve Squeri said Tuesday.