First let ur new company process ur visa..from there u will know everything u wanna know..Scenario 1: The 2 years ban is finished so u will be allowed for new modern day slavery again (sponsorship,per LincolnPirate) Scenario 2: Ur new visa will be decline by the immigration bcoz ur old slavery might have done something in ur immigration record so u cannot get new slavery again until & unless u can get NOC.