The deal - the biggest of its kind in rugby league - will also include sponsorship of the Leeds Rugby Foundation and the Rhinos Scholarship programme.
“I have been chasing this deal for five years,” said ISC's UK Director Darren Moore commented, " Leeds Rhinos have proved both on and off the field as well as on the terraces they are the club that others aspire to”
ISC current list of club kit sponsorships include Australia’s Sydney Roosters, South Sydney Rabbitohs, Penrith Panthers, Canberra Raiders, Parramatta Eels and Newcastle Knights and in rugby union all four Australian Super 14 clubs plus the Guinness Premiership's Leeds Carnegie.
