Almost three-quarters of Finns want to see a tax imposed on mining operations, a poll commissioned by The Finnish Association for Nature Conservation suggests.
Some 16 percent opposed a tax in the survey carried out by pollster Taloustutkimus. Support for the tax is uniform across the political spectrum.
A tax on mining operations has been proposed. It comes after disclosures that some mining firms had fallen short on environmental regulations.
Around 1,000 people were questioned in the survey which has a margin of error of three percentage points either way.
Authorities believe the case is linked to the seizure of a large number of weapons in Sweden last spring.
The informal two-day meeting begins on Thursday.
Last month the country saw average temperatures of around 16 degrees along the southern coast to just below eight degrees in northwestern Lapland.