Sumitomo Wiring System, Ltd Sustainability Profile
Sumitomo Wiring System, Ltd., commonly referred to as SWS, is a leading player in the automotive wiring harness industry, headquartered in Japan. Established in 1954, the company has expanded its operations across major regions, including Asia, Europe, and North America, solidifying its global presence. SWS specialises in the design and manufacture of high-quality wiring harnesses and related components, catering primarily to the automotive sector. Their commitment to innovation and quality has positioned them as a trusted supplier for numerous automotive manufacturers worldwide. Notable achievements include advancements in eco-friendly technologies and a strong focus on safety and reliability in their products. With a reputation for excellence, Sumitomo Wiring System continues to drive industry standards, making significant contributions to the evolution of automotive electrical systems.
DitchCarbon Score
How does Sumitomo Wiring System, Ltd's carbon action stack up? DitchCarbon scores companies based on their carbon action and commitment to reducing emissions. Read about our methodology to learn more.
Industry Average
Mean score of companies in the Electricity from Other Sources industry. Comparing a company's score to the industry average can give you a sense of how well the company is doing compared to its peers.
Industry Benchmark
Sumitomo Wiring System, Ltd's score of 36 is higher than 58% of the industry. This can give you a sense of how well the company is doing compared to its peers.
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Sumitomo Wiring System, Ltd's reported carbon emissions
In 2025, Sumitomo Wiring Systems, Ltd. reported total carbon emissions of approximately 16,790,000 kg CO2e for Scope 1 and 2 combined, and about 22,599,000,000 kg CO2e for Scope 3 emissions. In 2023, the figures were slightly higher, with Scope 1 and 2 emissions at around 16,810,000 kg CO2e and Scope 3 emissions at approximately 24,753,000,000 kg CO2e. The company has made significant strides in reducing its emissions, particularly in Japan, where it achieved a 50% reduction in both Scope 1 and Scope 2 emissions from FY2005 levels by 2012. This commitment reflects a proactive approach to climate action, aligning with industry standards for sustainability. Sumitomo Wiring Systems, Ltd. is a current subsidiary of Sumitomo Electric Industries, Ltd., which influences its climate initiatives and reporting. The emissions data is cascaded from its parent company, ensuring a comprehensive understanding of its environmental impact. The company has not publicly disclosed specific Science-Based Targets Initiative (SBTi) targets but is actively engaged in various climate initiatives through its corporate family. Overall, Sumitomo Wiring Systems, Ltd. demonstrates a commitment to reducing its carbon footprint while navigating the complexities of emissions across different scopes.
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| 2008 | 2009 | 2010 | 2011 | 2012 | 2018 | 2021 | 2023 | 2025 | |
|---|---|---|---|---|---|---|---|---|---|
| Scope 1 | 297,700,000 | 000,000,000 | 000,000,000 | 000,000,000 | 000,000,000 | - | 000,000,000 | - | - |
| Scope 2 | 56,600,000 | 00,000,000 | 00,000,000 | 00,000,000 | 00,000,000 | - | 0,000,000,000 | - | - |
| Scope 3 | 72,800,000 | 00,000,000 | 00,000,000 | 000,000,000 | 000,000,000 | 00,000,000,000 | 00,000,000,000 | 00,000,000,000 | 00,000,000,000 |
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Sumitomo Wiring System, Ltd's Climate Goals (2030 & 2050)
Climate goals typically focus on 2030 interim targets and 2050 net-zero commitments, aligned with global frameworks like the Paris Agreement and Science Based Targets initiative (SBTi) to ensure alignment with global climate goals.
Sumitomo Wiring System, Ltd has not publicly committed to specific 2030 or 2050 climate goals through the major frameworks we track. Companies often set interim 2030 targets and long-term 2050 net-zero goals to demonstrate measurable progress toward decarbonization.
