Prince Mishaal bin Abdullah bin Abdulaziz, Governor of Najran Region, will open Mine of Great Factories for Mining whose costs amount to SR 1.2 billion in Thar Governorate in the region tomorrow. Deputy Chairman of Board of Directors of Great Factories Company for Mining, Ibrahim bin Musalam, has expressed his thanks to and appreciation of the Prince for opening the mine and his interest and keenness to encourage investment in mining fields in Najran Region.