Chia-Jen Lo is a ground-breaking player, in that he's the Astros' first signee from Taiwan. At 5'11" and 179 pounds, he has a similar build to Roy Oswalt.
According to www.baseball-reference.com, Lo throws a curveball and a fastball that reaches speeds of 95 mph. He has pitched on several Taiwanese national teams, including the 2004 World Junior Championship. He also pitched well in the 2006 Haarlem Baseball Week (3 2/3 innings, striking out four and allowing two hits, a walk and saving the game) but not so well in the 2007 World Port Tournament (5.00 ERA in two games).
In 2008 at the World University Championship, Lo tossed three scoreless innings.
In his American debut with the Lancaster Jethawks last year, he pitched two scoreless innings of relief and struck out two and walked two without allowing any runs.
Accompanying Lo to spring training is his interpreter, Justin Wei. If he makes the roster in Houston, one wonders if he'll hang out with Yao Ming. If he does, there's bound to be teasing (Yao's from Mainland China, which considers Taiwan to be a "renegade" colony).