De Grey Mining (ASX:DEG) said its shareholders approved the acquisition of the company by Northern Star Resources (ASX:NST), according to a Wednesday filing with the Australian bourse.

The company said 99.64% of the votes cast by its shareholders at the general scheme meeting were in favor of the acquisition via a court-approved scheme of arrangement.

DEG said it will now seek approval of the scheme from the Federal Court of Australia on April 22.

If approved, De Grey will lodge the court orders with the Australian Securities and Investments Commission on April 23.

The company's shares are expected to be suspended from trading at market close on the same day.

The company will be removed from the S&P/ASX 200 Index prior to market open on April 24, to be replaced with the Generation Development Group (ASX:GDG), a separate filing showed.