The phrase "asserting that it had" is correct and usable in written English.
It can be used when discussing a claim or statement made by someone or something regarding a past action or state.
Example: "The report was criticized for asserting that it had sufficient evidence to support its conclusions."
Alternatives: "claiming that it had" or "stating that it had".
Prominent non-Islamists condemned the killings, but some also criticized the Muslim Brotherhood, asserting that it had put its supporters at risk.
Mr. Cussler filed suit against Crusader in 2004, asserting that it had violated its contract with him in making a film based on his novel "Sahara" and its fictional hero Dirk Pitt.
A bloc of four leading anti-Assad activist organizations issued a statement strongly criticizing the Syrian Coalition, asserting that it had "failed to fulfill its responsibility to represent the great Syrian people's revolution at the organizational, political and humanitarian levels".
Attorney General Eliot Spitzer sued one of New York City's largest home health care companies yesterday for $3 million, asserting that it had systematically failed to pay overtime to its 2,000 workers.
She found that the union was dishonest in asserting that it had a labor dispute with the Met when its main dispute was with Restaurant Associates, the subcontractor that runs the restaurants at the opera house.
A Trinity Mirror spokesperson responded by calling the strike vote "frustrating" and asserting that it had had "positive feedback from the majority [of its staff]." NUJ official Chris Morley said the vote was "a wake-up call to the company to listen to our members' legitimate concerns and work with us in a constructive way to achieve the company's goal of a bigger digital audience".
Some criticize its study as narrow, limiting, arrogant and discriminatory, asserting that it has little or no value for those of non-European origins.
Ryanair has consistently dismissed questions about its safety record and asserted that it had well-established internal procedures for reporting incidents and safety concerns.
In its initial response to the charges, the bank asserted that it had ceased doing "new" business with Iran five years ago, and that it never did business with people identified "at the time" as terrorists.
Uefa did not say why it had previously asserted that it had not had any dealings with any of the indicted companies or individuals.
From the start, the United States asserted that it had never intended to allow free cross-border gambling or betting.
