US fund Bain has closed the purchase of 100% of ITP Aero, the aeronautical components manufacturer, for 1.6 billion euros, with SAPA from Guipuzcoa as an industrial partner. JB Capital has also joined the US investment fund and the Andoain-based company as a shareholder. The buyers are committed to maintaining employment – more than 4,000 workers – and the head office and financial headquarters in the Basque Country (in Zamudio,…