While spending Thanksgiving at his Mar-a-Lago resort in Palm Beach, Florida, President-elect Donald Trump says he is hard at work trying to secure US jobs from moving to Mexico.

"I am working hard, even on Thanksgiving, trying to get Carrier A.C. Company to stay in the US," Trump tweeted Thursday (24 November). "Making progress — will know soon!"

In February this year, the air-conditioning company announced it would move production from Indianapolis, Indiana, to Monterey, Mexico. In a video posted online workers shout and curse at a Carrier official who announced the move. "We also intend to relocate the distribution center as well," the official said. "This is strictly a business decision."

Some 2,100 jobs are under threat and the first transition is set to take place in the middle of 2017. The plants' owners would pay Mexican workers $3 an hour, vastly less than the $20 an hour they pay Americans. Carrier said it would it would move 1,400 jobs from its Indianapolis production plant and another 700 from a plant in Huntington, Indiana.

Trump's Vice-President-elect Mike Pence is also the Republican Governor of Indiana and at the time of the announcement said he was "profoundly disappointed" about the move to Mexico.

The company is a branch of United Technologies Corporation Building & Industrial Systems and its founder Willis Carrier is credited with designing modern air conditioning in 1902.