A Hawke's Bay man who allegedly tried to blackmail eight reputable New Zealand companies has come back to court.

The 55-year-old man has appeared in the Napier District Court this morning.

The man's been charged with eight counts of threatening to tamper with the products made by the companies, for money.

The man has been granted continued interim name suppression until the outcome of a new psychiatric report is known.

Judge Tony Adeane has also allowed permanent suppression today for the names and nature of all the businesses involved.

The man's been released on bail to allow a second mental health report to be done.

He will return to court next month.