Clive Palmer has taken the stand in the Brisbane Federal Court over the collapse of Queensland Nickel.
The former federal MP has previously given evidence in the court about his role in the company's demise in early 2016, which put almost 800 refinery workers out of jobs.
Lawyers for liquidators FTI Consulting spent the past fortnight trying to wrangle records from Mr Palmer's flagship company Mineralogy.
Some of those records were handed over last week, but Mr Palmer is now being grilled over specific documents missing from the bundle.
Mr Palmer said he was not aware of Mineralogy not complying with the court order to supply the documents as he did not prepare them.
"We've produced the documents we have," Mr Palmer said on Monday.
Mr Palmer denied Queensland Nickel was used as a "cash cow" back in 2011 for Mineralogy to pay its bills.
He also claimed a May 2011 email under his pseudonym Terry Smith, which discussed what appeared to be a loan between the two companies, was fake.
"This email looks like it's fabricated to me," Mr Palmer said.
The hearing continues.