Copa Airlines (CM / CMP) has become the latest customer for the 737 MAX in Latin America, after announcing today a final order for 61 aircraft–divided between MAX 8 and MAX 9 variants–with a worth value calculated in US$6.6 billion at list price. These airplanes were previously attributed to an unidentified customer.
http://airwaysnews.com/blog/2015/04/10/copa-airlines-finalizes-order-for-61-737-max/