Sigma Alimentos, the frozen and refrigerated foods firm, has strengthened its presence in eastern Europe with the acquisition of a further 51% stake in Romanian meat firm Caroli, taking its shareholding in the company to 100%. Caroli is a leading producer of ready-to-eat packaged meats with more than 23 years of operation, marketing products under local brands such as Caroli, Sissi and Primo. The company operates a plant in the …