Nippon Steel has offered veto power to the US government to approve US Steel, sources told Reuters.

of Japan Nippon Steel has proposed giving the US government veto power over any potential cuts. US Steelproduction capacity, as part of efforts to win President Joe Biden’s approval for the acquisition of the U.S. steelmaker, a source familiar with the matter said on Tuesday.

Last week, the Committee on Foreign Investment in the United States referred the decision to approve or block the deal to Biden.

Biden, who leaves office on Jan. 20, has until Jan. 7 to make a decision on the deal. If they take no action, this will result in automatic approval of the merger.

“We have received the CFIUS assessment and the president will review it,” a White House spokesman said Tuesday.

The Washington Post previously reported that in its proposal, Nippon Steel pledged a 10-year commitment not to cut production capacity at domestic U.S. steel mills until approved by a Treasury-led review panel. Not to be approved.

Shares of US Steel rose on the Washington Post report, closing up 9.5 percent on Tuesday.

US Steel and Nippon Steel did not immediately respond to Reuters requests for comment.