Scarlets have confirmed that 32-year-old Parkes will join Japanese Top League side Panasonic Wild Knights.
Wales midfielder Hadleigh Parkes was last month linked to a move to the Japanese Top League that would bring an end to his Test career after 29 caps.
Hadleigh Parkes, the New Zealand-born midfielder that has made a name for himself on the international scene for Wales, is set to retire from the international game.
Hadleigh Parkes and his wife Suzy are set to become proud parents next month – and the Webb Ellis Cup would be a perfect gift for their new arrival.
Kiwi-born Wales midfielder Hadleigh Parkes has had a 'surreal' time in Japan since travelling over from the United Kingdom for his first-ever World Cup.
The consistency that Hadleigh Parkes brings to his rugby is mirrored in Wales’ solid 2018 which has seen the Red Dragons rise to No 3 in the world rankings.
Kiwi Hadleigh Parkes is revelling in the party atmosphere surrounding Wales' attempt to clinch a first Six Nations Grand Slam since 2012.
43 Kiwis took part in the weekend's northern hemisphere action.