This report focuses on the critical role of suppliers in decarbonizing heavy-emitting industries such as aviation, steel, cement, shipping and trucking. Drawing on supplier interviews, it highlights that the transition to low-carbon production is constrained not just by technology but by systemic barriers including weak demand signals, fragmented infrastructure, financing gaps and inconsistent policy frameworks. Across both mobility and materials sectors, suppliers face common challenges in scaling production, securing investment and integrating into existing systems. The report emphasizes that suppliers are central actors in turning climate commitments into reality, yet require coordinated action from governments, buyers and investors. The core message is that unlocking industrial decarbo

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