NEW DELHI: Agro-chemicals firm Coromandel International on Wednesday announced the acquisition of an additional 8.82 per cent equity stake in Senegal-based rock phosphate mining company BMCC through its wholly-owned subsidiary. With this, the company’s overall shareholding in Baobab Mining and Chemicals Corporation (BMCC) will increase to 53.8 per cent. “Coromandel will invest USD 3.84 million