9:12pm: Ben Badler of Baseball America reports that the Mets have received the Angels' No. 2 international bonus slot, which is valued at $360,500. The acquisition boosts the Mets' overall bonus pool to $3.0251MM and drops the Angels to $1.6332MM. Badler calls both Concepcion and Perez "more organizational players rather than true prospects."
6:10pm: The Angels have acquired minor leaguers Julio Concepcion and Andres Perez from the Mets in exchange for an international bonus slot, according to Mike DiGiovanna of the Los Angeles Times (on Twitter).
Concepcion, a 23-year-old outfielder, is a .277./.337/.390 hitter over parts of seven minor league seasons, but has not progressed past Class A to this point. He's played six games so far in 2013 in the short-season New York-Pennsylvania League after playing 17 games there in 2012, though he has just a combined .218/.256/.295 batting line at that level in those 23 games.
The 22-year-old Perez is a right-hander that is currently pitching in the Rookie Level Appalachian League. He's pitched to a 5.52 ERA with 6.8 K/9 and 3.1 BB/9 in 14 2/3 innings this season and has a career ERA of 3.68. Neither prospect was among the Top 30 Mets prospects prior to the season, according to Baseball America. It's unclear at this time how much the slot the Mets received is worth.