United Microelectronics
United Microelectronics Corporation (UMC), headquartered in Taiwan (TW), is a prominent player in the electrical machinery and apparatus sector, specifically within the semiconductor industry. Founded in 1980, UMC has established itself as a leading provider of advanced semiconductor manufacturing services, catering to a diverse range of applications including consumer electronics, automotive, and telecommunications.
With a strong operational presence across Asia, Europe, and North America, UMC is renowned for its cutting-edge process technologies and commitment to innovation. The company offers a comprehensive portfolio of services, including wafer fabrication and design support, which distinguishes it in a competitive market. UMC's dedication to quality and efficiency has earned it a solid market position, making it a trusted partner for numerous global clients in the semiconductor landscape.
+31 vs industry average
United Microelectronics’s score of 68 is higher than 77% of the industry. This can give you a sense of how well the company is doing compared to its peers.
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Industry Intensity
Electrical Machinery Manufacturing has above-average carbon intensity
Industry performance
The Electrical Machinery Manufacturing industry has reduced its overall emissions by 42% since 2018
Emissions trajectory 2020 – 2027
Reported emissions
Scope 3 accounts for ••• of total emissions.
United Microelectronics's reported carbon emissions
United Microelectronics Corporation (UMC) has reported its greenhouse gas emissions for recent years. In 2024, the company's total emissions were approximately 3.65 billion kg CO2e, comprising 463.67 million kg CO2e of Scope 1 emissions and approximately 1.52 billion kg CO2e of Scope 2 emissions. Scope 3 emissions in 2024 amounted to approximately 1.71 billion kg CO2e.
UMC's total emissions in 2023 were approximately 4.05 billion kg CO2e, with Scope 1 emissions at about 509.56 million kg CO2e, Scope 2 at approximately 1.64 billion kg CO2e, and Scope 3 at about 1.89 billion kg CO2e.
In terms of climate commitments, UMC aims for a 42% reduction in Scope 1 and Scope 2 emissions by 2030, using 2020 as a base year. Additionally, the company has set a target to reduce carbon emissions within its value chain (Scope 3) by 25%. UMC Group plans to achieve net-zero emissions by 2050, involving at least a 90% reduction in emissions and neutralisation or offsetting of the remaining unavoidable carbon emissions.
UMC's Science Based Targets initiative (SBTi) commitments include reducing absolute Scope 1 and 2 GHG emissions by 25% by 2030 from a 2020 base year. They also commit to reducing absolute Scope 3 GHG emissions by 12.3% within the same timeframe. Furthermore, UMC has targets for a 42% reduction in Scope 1 and Scope 2 GHG emissions by 2030 and a 95% reduction in Scope 1 and Scope 2 GHG emissions by 2050. They also commit to reducing absolute Scope 3 GHG emissions by 25% by 2030 and by 90% by 2050. UMC aims to reach net-zero greenhouse gas emissions across the value chain by 2050.
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United Microelectronics’s Climate Goals (2030 & 2050)
3 goals2030
42% reduction in Scope 1
United Microelectronics Corporation commits to reduce absolute scope 1 GHG emissions 42% by 2030 from a 2020 base year.
2030
25% reduction in scope 3 total
United Microelectronics Corporation also commits to reduce absolute scope 3 GHG emissions 25% within the same timeframe.
2030
42% reduction in Scope 2
United Microelectronics Corporation commits to reduce absolute scope 2 GHG emissions 42% by 2030 from a 2020 base year.
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Scope 3 top emissions categories
10 of 15 categories disclosedSee all scope 3 categories
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Climate initiatives

Science Based Targets Initiative

Carbon Disclosure Project
The Climate Pledge
UN Global Compact Climate Champions initiative
RE 100
Climate Action 100
Emissions comparison with industry peers
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Common questions about United Microelectronics’s sustainability data and climate commitments
Data year: 2024
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