President Donald Trump formally approved a partnership between U.S. Steel Corp. and Nippon Steel Corp., including its U.S. subsidiary Nippon Steel North America.

 The decision comes with the signing of an executive order aimed at revitalizing American steelmaking and ensuring long-term job growth and national security. President Joe Biden had previously blocked Nippon’s deal to buy U.S. Steel. U.S. Steel and Nippon subsequently filed a lawsuit over Biden’s order blocking the acquisition.

Thousands of steelworkers joined President Trump May 30, at U.S. Steel’s Irvin Plant at Mon Valley Works in West Mifflin, Pennsylvania to celebrate the milestone.

The partnership, approved following a U.S. Department of Justice review, includes the signing of a national security agreement between the companies and the U.S. government. Under the terms of the agreement, approximately $11 billion in new investments will be made by 2028. These include funding for the development of a greenfield steelmaking project, expected to be completed after 2028.

The agreement also outlines requirements on domestic steel production, trade matters and governance structures—most notably, the issuance of a “Golden Share” to the U.S. government.

“We thank President Trump and his administration for their bold leadership and strong support for our historic partnership,” the companies said in a joint statement. “This partnership will bring a massive investment that will support our communities and families for generations to come.”