Ott Tanak will compete for the newly-formed DMACK WRC team in 2016 after being dropped from M-Sport Ford's line-up.
The Estonian suffered a difficult 2015 season on his return to top-level WRC competition, finishing only 10th in the points and coming in for criticism by M-Sport team boss Malcolm Wilson.
Tanak made his World Rally car debut in Rally GB using DMACK rubber in 2011, and competed for the Chinese tyre manufacturer in the WRC 2 category in 2014 after his first M-Sport stint in 2012.
The 28-year-old now join forces with DMACK for a full assault on the 2016 championship with support from M-Sport.
"I'm very excited to be joining DMACK again and extremely motivated to carry on the hard work and get closer to the top," said Tanak.
"We have many good memories from 2014, the team is very hard-working and I know things have moved forward even more since then.
"We had a tough season but the speed was there and, now that we have much more WRC experience, we will only get better in the future.
"This is a perfect programme for me, a chance to help DMACK progress and an opportunity for me to demonstrate both my and DMACK's pace. I can't wait to start the season in Monaco."
M-Sport ran Elfyn Evans alongside Tanak in its main team this year, the Welshman outscoring his teammate by 89 to 63 and securing the team's best result of the year with second in France.
Evans' 2016 plans have yet to be confirmed, although Citroen driver Mads Ostberg has been strongly tipped for an M-Sport return next season in light of the French manufacturer taking a year out of WRC.