President-elect Donald Trump said Thursday he was “making progress” in persuading Carrier Corp. to change its plans to close an Indiana plant and move production to Mexico.

Carrier, which makes air conditioners and heating equipment, confirmed for the first time that it had discussions with the incoming administration but gave no details.

“Carrier has had discussions with the incoming administration and we look forward to working together,” the company tweeted from Carrier’s corporate account. “Nothing to announce at this time.”

Mr. Trump had taken to Twitter about an hour earlier to boast that he was “working hard, even on Thanksgiving, trying to get Carrier A.C. Company to stay in the U.S. (Indiana).”

His vice president-elect, Mike Pence, is the current governor of Indiana, and has negotiated with the company since the closure was announced, including winning repayment of some state training grants from Carrier.