Evergaz welcomed the President of the Regional Council, Mrs Christelle Morançais, Mrs Céline Broquin-Lacombe, Sub-Prefect in charge of economic recovery for the Prefect of the Mayenne department, and Mr Philippe Henry, President of the Pays de Château-Gontier Community of municipalities, to the Biogaz anaerobic digestion unit du Pays de Château-Gontier (Mayenne), to lay the first stone of its biogas upgrading equipment.