Saudi Arabian Mining Company 'Maaden' has increased its investment share in joint venture with American Alcoa Incorporation for Aluminum Production from 60 percent to 74.9 percent and the rest of 25.1 percent remained for the U.S. company. In a press release issued today, Maaden said that its Board of Directors has examined all financial means available to fund the increase of its share, stressing that the change in the quota will not affect the project.