The prop-forward signed from Bradford Bulls in 2013.
Huddersfield Giants prop-forward Nathan Mason is to join Leigh Centurions on loan for the 2018 season.
The 24-year-old moved from Bradford Bulls in 2013 and featured on nine occasions for the Giants in 2017.
Giants Managing Director Richard Thewlis told www.giantsrl.com: “Nathan was looking for guaranteed game time after a bit of a stop start year for him whereby he felt he had never really got going and in conversation with Derek at Leigh it became clear that they would like to give him an opportunity in what will naturally be a strong side at Championship level in 2018.
"In speaking to Nathan he liked the idea given where he felt he was in our forward line up and asked for time during his break overseas to think about it and today his agent Stuart Page informed us that he was going to take the opportunity at Leigh and signed the necessary paperwork.
"We wish Nathan every success there and will of course be monitoring his progress with a view to bringing him back to the Giants in 2019 a better player with his target being to have played 30 matches averaging around 60 minutes a games which will be of great benefit to him at this stage of his career.”