When Climate Leadership Stops at Steel: East Asian Automakers and Steel Supply Chain Decarbonization
research 2026-03-08
Issue Brief Steel

When Climate Leadership Stops at Steel: East Asian Automakers and Steel Supply Chain Decarbonization

About

This Issue-Brief adopts the indicator framework of the Lead the Charge 2026 Leaderboard as an analytical lens to assess the 18 automakers' performance across three core dimensions. First, it examines whether companies disclose Scope 3 emissions related to steel at a granular level, including breakdowns by raw material. Second, it evaluates whether companies have established clear mid- to long-term targets for transitioning to green steel and whether progress toward these targets is quantitatively reported. Third, it assesses the extent to which companies deploy supply chain levers, such as participation in buyer platforms and offtake agreements, to actively drive decarbonization among steelmakers.

  • Disclosure of Scope 3 Emissions in the Steel Supply Chain

  • Target Setting and Implementation for Green Steel Transition

  • Driving Steel Decarbonization through Supply Chain Engagement

Executive summary


  • Steel is a carbon-intensive industry responsible for over 7% of global greenhouse gas (GHG) emissions, while the automotive industry is a key downstream user, accounting for approximately 12% of global steel demand. Notably, as of 2024, South Korea, China, and Japan collectively account for 61.2% of global crude steel production and 54.8% of consumption, placing these countries at the forefront of the steel supply chain’s decarbonization.

  • South Korean, Chinese, and Japanese automakers must transparently disclose GHG emissions from steel use, set clear green steel adoption targets and roadmaps, and strengthen participation in global initiatives. Clear, credible demand signals through longterm offtake agreements with steelmakers will be crucial in accelerating decarbonization for both the automotive and steel sectors.

  • To effectively assess and compare decarbonization strategies across steel supply chains, a consistent definition and standard for ‘green steel’ is essential. As corporate netzero transition accelerates, globally recognized standards are being required to ensure transparency and accountability.

  • In a rapidly evolving trade environment, the automotive industry faces significant tariff risks if it lacks a robust carbon reduction roadmap for raw materials. Conversely, by systematically managing supply chain emissions and proactively adopting green steel strategies, automakers can mitigate trade risks and strengthen their long-term global competitiveness.

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