According to a number of reports, the Orix Buffaloes were in direct contact with Dae-Ho Lee regarding a possible contract extension, but at some point along the way, they were notified that all negotiations should go through his agent. Additionally, there was some news out of Korea that might be a bit troubling for Orix management: Lee has met with the Boras Corporation a number of times in Japan.
Here is a snip from a Korea Herald article that mentions the meeting between Lee and Boras Corporation:
Japan-based South Korean baseball player Lee Dae-ho has been approached by the management company of uber-agent Scott Boras, officials said Thursday, hinting that the slugger could soon sign with a big league club.
Lee Cha-ho, a sports agent and an older brother of the Orix Buffaloes player in Nippon Professional Baseball (NPB), told Yonhap News Agency that Al Chun, the director of Asian operations at the Boras Corporation, has met the player "a few times in Japan."
... "They had conversations, but Dae-ho didn't sign any paper," the older Lee said. "Dae-ho is still under contract with Orix and with his Japanese agent (lawyer Mito Shigeyuki), and he's a little troubled that the news of his meetings with the Boras Corp. got out."
... According to his brother, Lee is weighing multiple options -- re-signing with Orix, joining another NPB club, or moving to Major League Baseball (MLB).
Lee Cha-ho said the Boras Corp. works in the Japanese market as well as in the MLB, and even if Lee Dae-ho signs with the agency, it won't automatically mean the player will go to the majors.