Hi guys. Just wanted to tell everyone that Curve Metal can be used to access the Mastercard Lounge at Boryspil Airport in Kyiv. This is not advertised on the international Mastercard website, but you can find details on Ukrainian version of the site: https://www.mastercard.ua/uk-ua/consumers/features-benefits/travel/mastercard-lounges.html. Access in the international terminal is free for World Elite card holders.
It is also mentioned that there are MC lounges in Austria, Hungary, Romania, Chech, Russia and Moldova