IBM Announces Computer Chips More Powerful Than Any in Existence - The New York Times

More precisely, quoting from later in the article, it was an announcement "... made on behalf of an international consortium led by IBM"

"Even though IBM has shed much of its computer and semiconductor manufacturing capacity, the announcement indicates that the company remains interested in supporting the nation’s high technology manufacturing base.

“This puts IBM in the position of being a gentleman gambler as opposed to being a horse owner,” said Richard Doherty, president of Envisioneering, a Seaford, N.Y., consulting firm, referring to the fact that IBM’s chip manufacturing facility was acquired by GlobalFoundries effective last week."

IBM Announces Computer Chips More Powerful Than Any in Existence - The New York Times