Sumco Corporation, a leading player in the semiconductor industry, is headquartered in Japan (JP) and operates extensively across Asia and North America. Founded in 1999, Sumco has established itself as a key manufacturer of silicon wafers, essential components in the production of integrated circuits and other electronic devices. The company is renowned for its high-quality products, including single crystal silicon wafers, which are distinguished by their superior purity and performance. Sumco's commitment to innovation and sustainability has positioned it as a trusted partner for major semiconductor manufacturers worldwide. With a strong market presence and a focus on advanced technology, Sumco continues to achieve significant milestones, reinforcing its status as a leader in the semiconductor supply chain.
How does Sumco'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.
Mean score of companies in the Electrical Machinery Manufacturing 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.
Sumco's score of 38 is higher than 58% of the industry. This can give you a sense of how well the company is doing compared to its peers.
In 2023, Sumco Corporation reported total greenhouse gas emissions of approximately 2,109,000,000 kg CO2e. This includes Scope 1 emissions of about 33,000,000 kg CO2e, Scope 2 emissions of approximately 942,000,000 kg CO2e, and Scope 3 emissions totalling around 1,133,000,000 kg CO2e. The company has set ambitious targets to reduce its carbon footprint, aiming for a 42% reduction in absolute Scope 1 and 2 emissions by 2030 from a 2023 baseline, and a 25% reduction in Scope 3 emissions from purchased goods and services, capital goods, and upstream transportation and distribution within the same timeframe. Sumco's long-term commitment includes achieving carbon neutrality by 2050, with a near-term goal of reducing Scope 1 and 2 emissions by 33% compared to 2014 levels by 2030. The company is actively working towards these targets, which are aligned with the Science Based Targets initiative (SBTi) standards, ensuring that their reduction efforts are consistent with limiting global warming to 1.5°C. Overall, Sumco's emissions data reflects a comprehensive approach to climate action, with a focus on significant reductions across all scopes of emissions, demonstrating their commitment to sustainability in the semiconductor industry.
Access structured emissions data, company-specific emission factors, and source documents
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | |
|---|---|---|---|---|---|---|---|---|---|
| Scope 1 | 21,000,000 | 00,000,000 | 00,000,000 | 00,000,000 | 00,000,000,000 | 00,000,000,000 | 00,000,000,000 | 00,000,000,000 | 00,000,000,000 |
| Scope 2 | 990,000,000 | 000,000,000 | 000,000,000 | 000,000,000 | 000,000,000,000 | 000,000,000,000 | 000,000,000,000 | 000,000,000,000 | 000,000,000,000 |
| Scope 3 | 1,020,000,000 | 0,000,000 | 0,000,000 | 0,000,000 | 000,000,000,000 | 000,000,000,000 | 000,000,000,000 | 000,000,000,000 | 0,000,000,000,000 |
Sumco's Scope 3 emissions, which increased by 28% last year and increased significantly since 2015, demonstrating supply chain emissions tracking. Most of their carbon footprint comes from suppliers and value chain emissions, with Scope 3 emissions accounting for 54% of total emissions under the GHG Protocol, with "Purchased Goods and Services" being the largest emissions source at 54% of Scope 3 emissions.
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.
Sumco has established climate goals through participation in recognized frameworks and target-setting initiatives. Companies often set interim 2030 targets and long-term 2050 net-zero goals to demonstrate measurable progress toward decarbonization.

Common questions about Sumco's sustainability data and climate commitments