Oaktree Capital, an American global asset management firm, is set to invest $600m in TPI Composites, the only independent manufacturer of composite wind blades with a global footprint. "Oaktree is an experienced investor across the power and energy value chains and today’s announcement is a strong endorsement of our strategy and growth prospects. Oaktree’s investment will strengthen our balance sheet significantly and positions TPI to navigate a rapidly evolving market and operating environment in the near-term while providing the flexibility to take advantage of longer-term growth opportunities," Bill Siwek, TPI President and CEO.