American Express issues cards in scores of countries. There are different Membership Rewards earning rates, transfer partners and ratios in each country. USA-issued cards transfer to the programs listed here. EVA is not a partner for USA-issued cards:
https://global.americanexpress.com/rewards/transfer
Thanks that's what I thought. It's just when I did a search it came up with an eva transfer labeled "new" but I neglected to note that it may have been a different country.