Awesome! I didn’t realize you could do that.
http://www.cnewa.org/donations.aspx?ID=1370&sitecode=HQ&pageno=1
This seems to be their “Sponsor a Seminarian or Sister” link. They’re very accommodating. After sponsoring a child and two Sisters in India, I asked for someone from somewhere else, and got the seminarian in Ethiopia. On the site, it looks like you can choose a country/region.