05/05/2011 (Agence Europe) - Mergers. On Thursday 5 May, the European Commission authorised the US group, Caterpillar, which manufactures and sells machinery, motors and spare parts for mining equipment, to buy up Bucyrus, another US firm that produces and sells mining equipment and spare parts, and provides after-sales services. The Commission mainly examined the market for open sky mining trucks, a relatively concentrated and specific market with only a few large players active in the...