KUALA LUMPUR (Dec 4): Former Public Accounts Committee (PAC) chairman Tan Sri Ambrin Buang is cooperating well with the committee on its inquiry into the possible tampering of 1MDB's final audit report.

"He is providing us with a good cooperation, and many statements which will help PAC [in our investigation]," current PAC chairman Datuk Seri Ronald Kiandee told reporters in Parliament today.

Ambrin was summoned by the PAC to Parliament at 11am today to assist the committee's inquiry on the possible tampering.

In particular, it is in relation with the statement by Auditor General Tan Sri Madinah Mohamad that the audit report was edited several times — once under the instruction of Tan Sri Shukry Salleh, former principal private secretary to former prime minister Datuk Seri Najib Razak; and another under the purview of then-chief secretary Tan Sri Ali Hamsa.

The key amendments, according to Madinah, included the removal of a paragraph mentioning Low Taek Jho as attending a meeting of 1MDB board of directors, as well as the removal of a paragraph on 1MDB's financial statement for the year ended 2014.

Aminah had submitted the unedited version of the final audit report to related authorities, according to news reports.

Today's inquiry with Ambrin will continue at 2.30pm. When spotted, Ambrin avoided the media.

Kiandee said Aminah is summoned by the PAC at 11am tomorrow, followed by former government sector audit director Saadatul Nafisah on Thursday, also at 11am.