Taiwan's "Big Six" electronics ODMs are advancing their net-zero strategies, moving beyond merely increasing the share of renewable energy in their own operations to actively reducing carbon emissions across the entire supply chain. A key driver of this shift is that the primary battleground for greenhouse gas (GHG) reductions is now moving toward Scope 3 emissions.
With growing pressure from the supply chain, stricter requirements from brand customers, and the expectation that Taiwan's Financial Supervisory Commission will soon mandate phased disclosure of Scope 3 emissions, reporting of Scope 3 GHG emissions is poised to become mainstream, according to DIGITIMES.
As critical partners in the global ICT supply chain, Taiwan's Big Six have actively advanced their carbon-reduction efforts in recent years to help brand customers achieve their net-zero goals. DIGITIMES observes that the Big Six have not only set net-zero targets for 2050, but also extended their interim 2030 reduction targets from Scope 1 and 2 to include Scope 3 emissions from the supply chain. Among them, Wistron stands out as the most ambitious, planning to achieve RE100 by 2030. Its renewable-energy usage share also led the Big Six in 2024, surpassing 70%.
Chart 1: Renewable-energy usage share, carbon-reduction targets of Big Six, 2024
Chart 2: GHG emissions from Scope 1 and 2 of Big Six, 2022-2024 (tons CO2e)
Chart 3: Carbon-emission intensity of Big Six, 2023-2024 (tons CO2e/NT$m)
Chart 6: Scope 1, 2, and 3 GHG emission share of Big Six, 2024
Chart 7: Scope 3 GHG emission and major category share of Big Six, 2024 (tons CO2e)
Chart 10: ICP implementation status and future plans of Big Six
Chart 11: Sustainable supply chain development strategy of Big Six
Chart 13: Business expansion via green-energy innovations of Big Six

