BOLIDEN TO ANNOUNCE MAJOR CORPORATE TAKEOVER - OFFICIAL Boliden AB <BLDS ST> mining and metals group said it will announce a major foreign corporate takeover today involving a company with an annual turnover of two billion crowns. A Boliden spokesman told Reuters details of the announcement would be given at a news conference by chairman Rune Andersson at 1030 gmt today. He said the company involved employed 4,000 people, but declined to name the takeover price or say what field the firm operated in. Share analysts said they expected Boliden to announce it will be taking over the U.S. Allis-Chalmers Corp <AH.O> but company officials refused to confirm the reports ahead of the news conference.