The phrase "acknowledged that it has" is correct and usable in written English.
You can use it when discussing recognition or admission of a fact or situation by a subject.
Example: "The committee acknowledged that it has made mistakes in the past and is committed to improving its processes."
Alternatives: "recognized that it has" or "admitted that it has".
A4 Afghanistan Ponders Opium Afghanistan, the world's biggest producer of opium and its derivative, heroin, acknowledged that it has considered licensing its vast illicit crop and using it to produce opium-based medicines, though it ruled out such a move in the immediate future.
Cirque has long been circumspect about its profits, but Mr. Laliberté acknowledged that it has felt the effects of the recession.
After months of speculation, MetLife acknowledged that it has hired a broker to sell its enormous Manhattan apartment portfolio two adjoining complexes known as Stuyvesant Town and Peter Cooper Village, built in the 1940s to house returning Word War II veterans.
But on Monday, Univision — the nation's largest Spanish-language media company — acknowledged that it has terminated the programming executive who worked at its popular radio station KSCA-FM (101.9).
Ecuador's government has acknowledged that it has "temporarily restricted" WikiLeaks founder Julian Assange's Internet access at its embassy in London after the whistle-blowing site published documents from Hillary Clinton's presidential campaign.
He acknowledged that it has been a learning experience.
Tribune stumbled recently when Hoy's New York edition acknowledged that it had inflated its claimed circulation by 19%.
After all, the Republican Party had acknowledged that it had to improve its outreach to minorities after its humiliating 2012 defeat.
The Lieberman campaign acknowledged that it had no evidence that its opponents were behind the crash.
Tommy Hilfiger acknowledged that it had moved some of its production out of Pakistan.
In its annual report for 2007, IndyMac had acknowledged that it had a "terrible" year, having lost $615 million.
