Beaconsfield Gold and insurer QBE will contest a $45.5 million payout in the Court of Appeal, two years on from the Tasmanian mine collapse that sparked the claim.

After losing in the Supreme Court in September last year, Beaconsfield Gold and Allstate Explorations lodged an appeal in October. Master Robyn Lansdowne granted the appeal at a directions hearing last week.

The appeal will be heard in August.

The Tasmanian company has argued a $45.5 million claim made under its business interruption policy - stemming from the closure of the mine after a rockfall killed one worker and trapped two others - is legitimate.

But last year the Victorian Supreme Court ruled in favour of QBE, agreeing the insurance policy was void if civil authorities closed the mine due to non-physical damage.

Beaconsfield Gold's lawyers have conceded the case is likely to drag on, with QBE expected to challenge any adverse appeal ruling.