On September 8, mining company KGHM issued a statement saying that it had signed a memorandum of understanding with BHP Billiton World Exploration to establish a framework for dialogue and exploration of areas of common interest between the two sides.

On September 8, mining company KGHM issued a statement saying that it had signed a memorandum of understanding with BHP Billiton World Exploration to establish a framework for dialogue and exploration of areas of common interest between the two sides.