Business Green: Steel giant Corus has tightened its 2010 energy use target after the company confirmed it was on track to complete a £60m upgrade of its Port Talbot plant before the end of the year that should see the company single-handedly ensure Wales meets its national emission reduction target. The company is to complete work on a new gas recovery system at the system by October that will allow it to capture gas that is currently flared and reuse it to power the plant. The project is estimated …