Inversiones Y Desarrollos S.A. offered to acquire additional 20.52% stake in Cementos Bio-Bio S.A. (SNSE : CEMENTOS) for CLP 45.9 billion on December 13, 2017. Under the terms of the offer, Inversiones Y Desarrollos S.A. will acquire 54.21 million shares of Cementos Bio-Bio S.A. at CLP 847 per share. Enrique Elsaca will become top manager of Cementos Bio-Bio S.A.. replacing Inaki Otegui, from January 1, 2018. Otegui announced his resignation.