BusinessThe man who began to light up Barcelona (and Madrid's Puerta del Sol)David Valero-Carreras02-06-2026
![The Catalan chemist Josep Rourai Estrada](data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 9"%3E%3C/svg%3E)