Elias is expected to finalize a contract with the Korea Baseball Organization's SSG Landers later this week, Jeeho Yoo of the Yonhap News Agency reports.
The Cubs reassigned Elias to minor-league camp Monday, Maddie Lee of the Chicago Sun-Times reports.
Elias signed a minor-league contract with the Cubs on Thursday and was invited to major-league spring training, Tim Stebbins of NBC Sports Chicago reports.
Elias cleared waivers and was outrighted to Triple-A Tacoma on Thursday, Ryan Divish of The Seattle Times reports.
The Mariners designated Elias for assignment Monday.
Elias fired a scoreless ninth inning during which he allowed a hit in a win over the Angels on Friday.
Elias fired two scoreless innings in a win over the Orioles on Tuesday, allowing one hit and recording two strikeouts.
Elias' contract was selected by the Mariners on Friday.
The Mariners returned Elias to Triple-A Tacoma on Thursday.
Elias, called up from Triple-A Tacoma earlier in the day, allowed an earned run on one hit and two walks over an inning in a loss to the Blue Jays on Monday.