Hanover gave AIG notice of a possible claim and AIG disputed cover. Hanover then issued its proceedings to get the policy amended to reflect its understanding and in the alternative, that AIG itself breached the Fair Trading Act and should be made to honour its promise of full prospectus cover.
"Like the judge, then, we consider that Hanover has failed to meet its burden of establishing that there was an understanding that AIG would provide full prospectus cover," Justice Arnold said. "Accordingly, we consider that the claim for rectification must fail."
"Those involved in the discussions were sophisticated and knowledgeable business people, who can legitimately be expected to be alert to their interests and to record their respective positions, and any subsequent agreements, with some care and precision," he said.
Hanover was ordered to meet AIG's costs.
Hanover Finance froze $554 million of funds for its 17,000 investors after running into financial difficulties before convincing them to accept a disastrous deal where their debt was swapped for equity in Allied Farmers.
The Financial Markets Authority is pursuing Hanover's former directors and promoters in a civil suit. In April, the Serious Fraud Office said it wouldn't lay charges against any of Hanover's directors or promoters, including Mark Hotchin and Eric Watson, saying it had exhausted all avenues of investigation and found nothing to meet its threshold to pursue a prosecution.