Napier mayor Bill Dalton has taken umbrage at not being consulted before Hastings District Council developed material for regional investment attraction, a decision Hastings Mayor Lawrence Yule said was because of Napier's poor attitude.
Hastings launched its sales material to an invited audience that included Mr Dalton on Tuesday.
"Surely it would be much more powerful if they had been produced in consultation with other councils, so we could have a more balanced look at Hawke's Bay," he said.
The material was "clearly produced in secret".
"I meet regularly with my fellow Hawke's Bay mayors and the chair of the regional council and we discuss ways we can improve the region and attract new businesses - generate some life in the Hawke's Bay economy - and this has never been raised."