French construction and concessions group Vinci SA (<a href="https://live.euronext.com/en/product/equities/FR0000125486-XPAR" target="_blank">EPA:DG</a>) and Spanish builder ACS (<a href="https://www.bolsasymercados.es/bme-exchange/es/Mercados-y-Cotizaciones/Acciones/Mercado-Continuo/Ficha/Acs-Actividades-Const-Y-Servicios-ES0167050915" target="_blank">BME:ACS</a>) have terminated their joint venture (JV) agreement for the development of renewable energy projects, citing changes in investment priorities.