The South Korea international has signed a contract extension until 2013, manager Owen Coyle revealed on Thursday morning. Lee, 24, has been in sparkling form for Bolton, who are lying fifth in the table going into the Barclays Premier League match against Blackpool on Saturday.
Coyle said: "We have signed Lee on a contract extension. It is great news for the club that such a talented player will be here for a long time."
Lee follows in the footsteps of team-mates Fabrice Muamba, Stuart Holden and Danny Ward in signing a contract extension at the Reebok Stadium.
Coyle, who arrived in January from Burnley, believes the future is looking ever brighter at the club.
He said: "These extensions show we are looking to build a club. I am very forward thinking in trying to improve and help these young players on our journey. With the talent he has Lee is getting better day by day and I am thrilled he has signed up.
"What I am wary of is we do not burn him out as he has played two years without a break. He managed to have three weeks off after the World Cup that's all."
Meanwhile, chairman Phil Gartside has begun the process of trying to retain the services of in-form striker Johan Elmander, whose existing deal runs out in the summer.
The Swede is enjoying a purple patch after a difficult time and has already scored eight goals in the league this term.
Coyle said: "Phil has had talks with Johan's representative and that will be ongoing. It is something I am very comfortable with. Johan has been terrific from day one and if they decide they want it to run its course into January, then so be it. I have no problems with that. Johan is well within his rights to do what is right for himself and his family."
Source: PA
Source: PA