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Eisai Co Ltd

Common Name
Eisai
Country
Japan
Sector
Healthcare
Industry
Drug Manufacturers - Specialty & Generic
Employees
10,917
Ticker
4523
Exchange
TOKYO STOCK EXCHANGE
Description
Eisai Co., Ltd. is a major pharmaceutical company specializing in the research, development, and manufacture of innovative pharmaceuticals. Its primary function is to deliver prescription drugs and th...

Eisai's GHG Emissions Data Preview

In 2024, Eisai completed a corporate carbon footprint assessment and publicly disclosed its greenhouse gas (GHG) emissions according to the GHG Protocol, covering Scope 1 (direct emissions from owned or controlled sources), Scope 2 (indirect emissions from purchased energy) and Scope 3 (indirect emissions across the value chain).

Eisai has also provided a category-level breakdown for 9 out of 15 Scope 3 emissions categories, offering greater transparency into its value chain emissions.

Metric (tCO2e)202420232022
2021 - 2017
Total Scope 1
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Total Scope 2
Market-Based
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Location-Based
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Total Scope 3
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Total Scope 1 Revenue Intensity (tCO2e/$M)
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Limited Data Preview
You are viewing a limited preview of Eisai’s GHG emissions dataset. The full dataset, available for download, includes Scope 1, 2, and 3 emissions with detailed category-level breakdowns, historical coverage back to 2019, and revenue-based intensity metrics for each scope.
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Verified Sources Behind Eisai’s Greenhouse Gas (GHG) Emissions Data

Every figure on this dashboard has a transparent audit trail. With Tracenable, each data point is traceable back to its original source, viewable directly inside our platform. Explore Eisai’s data sources below and access millions more through our Disclosure Search.

a. Eisai's Webpage captured from company’s website 2025
b. Eisai's Environmental Report 2023
c. Eisai's Webpage captured from company’s website 2024

Insights into Eisai's Operational Emissions

In 2024, the total operational greenhouse gas (GHG) emissions of Eisai amounted to 49,587 metric tons of CO2 equivalent. This figure includes both direct emissions from owned or controlled sources (Scope 1) and indirect emissions from purchased energy (Scope 2).a

Compared to 2023, the total operational greenhouse gas (GHG) emissions of Eisai decreased by 3.26%, showing that the company has made progress in taking action to reduce the climate impact of its operations.a

Eisai's Scope 1 Emissions Over Time

201920202021202220232024015 k30 k45 k60 ktCO2e-9%+3%+2%+2%-6%
  • Total Scope 1
  • Year-over-Year Change

What are Eisai's Scope 1 emissions?

In 2024, the total Scope 1 emissions of Eisai were 45,666 metric tons of CO₂ equivalent (tCO₂e).a

Has Eisai reduced its Scope 1 emissions over time?

Since 2019, Eisai's Scope 1 emissions have decreased by 7.67%, reflecting a declining long-term trend in Scope 1 emissions over time.ac

Compared to the previous year (2023), Eisai's Scope 1 emissions decreased by 6.01%, highlighting the company's efforts to lower direct emissions from assets it owns or controls.a

What are Eisai's Scope 2 emissions?

In 2024, Eisai reported Scope 2 greenhouse gas (GHG) emissions of 3,921 tCO₂e using the market-based method.a

Has Eisai reduced its Scope 2 emissions over time?

Since 2019, Eisai's Scope 2 greenhouse gas (GHG) emissions (Market-Based) have decreased by 92.98%, reflecting a declining long-term trend in Scope 2 emissions over time.ac

Compared to the previous year (2023), Eisai's Scope 2 emissions (Market-Based) rose by 46.69% in 2024, suggesting that the company faced challenges in reducing emissions from purchased electricity and energya

What methodology does Eisai use for Scope 2 reporting?

In 2024, Eisai reported its Scope 2 emissions using the market-based method.a

Eisai's Scope 2 Emissions Over Time

201920202021202220232024015 k30 k45 k60 ktCO2e
  • Total Scope 2 Market-Based

Insights into Eisai's Value Chain Emissions

In 2024, Eisai reported 825,382 metric tons of CO₂ equivalent (tCO₂e) of Scope 3 greenhouse gas (GHG) emissions, representing indirect emissions across its upstream and downstream value chain.a

The 2024 disclosure of Eisai includes a breakdown across 1 of the 15 Scope 3 categories defined by the GHG Protocol, matching the level of disclosure in 2023, demonstrating consistent Scope 3 emissions reporting coverage year over year.a

Eisai's Scope 3 Emissions Over Time

2019202020212022202320240250 k500 k750 k1 MtCO2e+7%+7%+29%-16%+46%
  • Total Scope 3
  • Year-over-Year Change

What are Eisai's Scope 3 emissions?

In 2024, Eisai reported total Scope 3 emissions of 825,382 metric tons of CO₂ equivalent (tCO₂e).a

Approximately 100% of these emissions originated from upstream activities such as purchased goods and capital goods, while 0% came from downstream activities like product use, distribution, and end-of-life treatment.a

Has Eisai reduced its Scope 3 emissions over time?

Since 2019, Eisai's Scope 3 emissions have increased by 80.85%, reflecting a rising long-term trend in Scope 3 emissions over time.ac

Compared to the previous year (2023), Eisai's Scope 3 emissions increased by 46.36%, suggesting that the company faced challenges in reducing emissions across its value chain.a

What categories of Scope 3 emissions does Eisai disclose?

In 2024, Eisai reported emissions for 1 out of the 15 Scope 3 categories defined by the GHG Protocol.a

The limited disclosure restricts visibility into specific emission sources across the company's value chain.

What are the main sources of Eisai's Scope 3 emissions?

In 2024, the largest contributors to Eisai's Scope 3 emissions were:a

  • Purchased Goods and Services (Cat. 1): 825,382 tCO₂e (100%)

Eisai's Scope 3 Emissions by Categories

Purchased Goods andServices (Cat. 1)(100.0%)

Insights into Eisai’s GHG Emissions Intensity Compared to Industry Peers

In 2024, Eisai reported Scope 1 greenhouse gas (GHG) emissions of 45,666 tCO₂e and total revenues of USD 4,898 millions. This translates into an emissions intensity of 9.32 tCO₂e per millions USD.a

Eisai's Scope 1 Emissions Intensity Compared to Peers

102002,00050,0001,000,000Scope 1 Emissions (tCO2e)201001,00010,000100,000Revenues (Millions of USD)MNMTerumoYear: 2023Scope 1: 64,123 tCO2eRevenue: $M 6,158Scope 1 Intensity: 10.41 tCO2e/$MHisamitsu PharmaceuticalYear: 2022Scope 1: 7,862 tCO2eRevenue: $M 1,040Scope 1 Intensity: 7.56 tCO2e/$MShionogi & CoYear: 2024Scope 1: 40,090 tCO2eRevenue: $M 2,873Scope 1 Intensity: 13.95 tCO2e/$MSawai Group HoldingsYear: 2023Scope 1: 19,500 tCO2eRevenue: $M 1,229Scope 1 Intensity: 15.87 tCO2e/$MSundrugYear: 2024Scope 1: 22,197 tCO2eRevenue: $M 4,964Scope 1 Intensity: 4.47 tCO2e/$MMatsukiyoCocokara & CoYear: 2024Scope 1: 3,764 tCO2eRevenue: $M 6,752Scope 1 Intensity: 0.56 tCO2e/$MChugai PharmaceuticalYear: 2024Scope 1: 51,143 tCO2eRevenue: $M 7,456Scope 1 Intensity: 6.86 tCO2e/$MSuzukenYear: 2024Scope 1: 26,205 tCO2eRevenue: $M 15,759Scope 1 Intensity: 1.66 tCO2e/$MTsuruha HoldingsYear: 2023Scope 1: 3,424 tCO2eRevenue: $M 6,940Scope 1 Intensity: 0.49 tCO2e/$MOtsuka HoldingsYear: 2024Scope 1: 368,733 tCO2eRevenue: $M 14,840Scope 1 Intensity: 24.85 tCO2e/$MMMMedical Data VisionYear: 2024Scope 1: 13 tCO2eRevenue: $M 38Scope 1 Intensity: 0.35 tCO2e/$MSMSYear: 2023Scope 1: 220 tCO2eRevenue: $M 343Scope 1 Intensity: 0.64 tCO2e/$MAstellas PharmaYear: 2024Scope 1: 52,212 tCO2eRevenue: $M 10,589Scope 1 Intensity: 4.93 tCO2e/$MTsumura & CoYear: 2021Scope 1: 39,385 tCO2eRevenue: $M 1,055Scope 1 Intensity: 37.32 tCO2e/$MDaiichi SankyoYear: 2024Scope 1: 91,836 tCO2eRevenue: $M 10,576Scope 1 Intensity: 8.68 tCO2e/$MNNNippon ShinyakuYear: 2023Scope 1: 4,366 tCO2eRevenue: $M 1,082Scope 1 Intensity: 4.03 tCO2e/$MHikari TsushinYear: 2024Scope 1: 1,102 tCO2eRevenue: $M 3,975Scope 1 Intensity: 0.28 tCO2e/$MAlfresa HoldingsYear: 2025Scope 1: 31,360 tCO2eRevenue: $M 19,746Scope 1 Intensity: 1.59 tCO2e/$MTakeda PharmaceuticalYear: 2024Scope 1: 273,000 tCO2eRevenue: $M 28,155Scope 1 Intensity: 9.70 tCO2e/$MMMMedipal HoldingsYear: 2024Scope 1: 31,081 tCO2eRevenue: $M 23,500Scope 1 Intensity: 1.32 tCO2e/$MOlympusYear: 2025Scope 1: 24,120 tCO2eRevenue: $M 6,650Scope 1 Intensity: 3.63 tCO2e/$MKaken PharmaceuticalYear: 2023Scope 1: 11,069 tCO2eRevenue: $M 548Scope 1 Intensity: 20.20 tCO2e/$MSumitomo PharmaYear: 2024Scope 1: 23,101 tCO2eRevenue: $M 2,077Scope 1 Intensity: 11.12 tCO2e/$MEisaiYear: 2024Scope 1: 45,666 tCO2eRevenue: $M 4,898Scope 1 Intensity: 9.32 tCO2e/$M

How does Eisai's GHG emissions intensity compare to its peers?

In 2024, Eisai reported a Scope 1 emissions intensity of 9.32 tCO₂e per millions USD. Compared to the peer group median of 4.93, this places the company above its industry benchmark, indicating it is less carbon-efficient than most competitors.a

Where does Eisai rank on GHG emissions intensity within its industry?

In 2024, Eisai ranked 16 out of 23 companies in its industry peer group, based on Scope 1 emissions intensity (measured in tCO₂e per millions USD).a

Eisai is therefore positioned in the mid-range of its industry, neither a clear leader nor a laggard in carbon efficiency.a

Insights into Eisai's Total Carbon Footprint

In 2024, Eisai reported a total carbon footprint of 874,969 metric tons of CO₂ equivalent (tCO₂e) across Scope 1, Scope 2, and Scope 3 emissions. This represents a 42.23% increase compared to 2023, suggesting a rise in emissions across its operations or value chain.a

The largest contributor to Eisai's total carbon footprint was Scope 3 emissions, accounting for 94.33% of the company's total carbon footprint, followed by Scope 1 emissions at 5.22%.a

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