Taiwan’s top six electronics ODMs, often referred to as the “Big Six,” are accelerating their net-zero strategies and raising the bar for climate action across the global tech manufacturing supply chain. Instead of focusing only on cleaning up their own operations through greater renewable energy use, these major manufacturers are now pushing deeper emissions cuts across the entire value chain—where the biggest climate impact increasingly sits.
The main reason for this shift is the growing importance of Scope 3 emissions. While Scope 1 covers direct emissions from a company’s own operations and Scope 2 addresses emissions related to purchased energy, Scope 3 includes indirect emissions that occur throughout the supply chain. For electronics manufacturing, Scope 3 is often the largest portion of a company’s total greenhouse gas footprint, making it the new “front line” for meaningful carbon reduction.
Several forces are driving the Big Six to move faster. Brand customers are tightening supplier requirements as they work toward their own net-zero goals, and pressure is building across the supply chain for measurable, verifiable reductions rather than broad sustainability promises. On top of that, expectations are growing that Taiwan’s Financial Supervisory Commission will introduce phased requirements for Scope 3 disclosure—an update that could make Scope 3 greenhouse gas reporting a standard business obligation rather than an optional initiative.
As key partners in the global ICT supply chain, Taiwan’s largest ODMs have been steadily expanding their climate commitments. Alongside long-term net-zero targets set for 2050, these manufacturers are now extending their interim 2030 emissions-reduction goals beyond Scope 1 and Scope 2 to include supply chain emissions under Scope 3. This signals a clear progression: the industry is moving from internal clean-energy adoption toward co-creating lower-carbon supply chains with suppliers, logistics partners, and upstream material providers.
Among the Big Six, Wistron is positioned as the most aggressive in renewable energy adoption. The company is planning to reach RE100—sourcing 100% renewable electricity—by 2030. It also led the group in renewable energy usage in 2024, with its share surpassing 70%, highlighting how rapidly renewable procurement is becoming a core strategy for achieving near-term climate milestones.
Taken together, these moves reflect a broader transformation across electronics manufacturing: net-zero is no longer just about buying green power for factories. It’s increasingly about reducing emissions at every step—from components and materials to production and delivery—so that sustainability becomes embedded into how the entire tech supply chain operates.
