Is e-voting currently used in any elections with EMB participation?
Yes, in politically-binding national elections (elections for public office or direct democracy initiatives)
Junta Central Electoral
As of 2016, electronic methods were used to count votes at the polling station level (source). When voting closes, ballots are scanned and a certificate is produced indicating what the machine has recorded. This certificate is printed, signed, then scanned and transmitted to a central data processing center.