Third-Party Assessment

The FTSE4Good Index Series is a stock index series designed to promote investment in companies that meet the global standards of ESG practices.

FTSE Russell (the trading name of FTSE International Limited and Frank Russell Company) confirms that Eisai Co., Ltd. has been independently assessed according to the FTSE4Good criteria, and has satisfied the requirements to become a constituent of the FTSE4Good Index Series. Created by the global index provider FTSE Russell, the FTSE4Good Index Series is designed to measure the performance of companies demonstrating strong Environmental, Social and Governance (ESG) practices. The FTSE4Good indices are used by a wide variety of market participants to create and assess responsible investment funds and other products.
https://www.lseg.com/en/ftse-russell/indices/ftse4good

The FTSE JPX Blossom Japan Index is an indicator to measure the performance of Japanese companies that demonstrate specific ESG practices.

FTSE Russell confirms that Eisai Co., Ltd. has been independently assessed according to the index criteria, and has satisfied the requirements to become a constituent of the FTSE JPX Blossom Japan Index. Created by the global index and data provider FTSE Russell, the FTSE JPX Blossom Japan Index is designed to measure the performance of companies demonstrating specific Environmental, Social and Governance (ESG) practices. The FTSE JPX Blossom Japan Index is used by a wide variety of market participants to create and assess responsible investment funds and other products.
https://www.lseg.com/en/ftse-russell/indices/blossom-japan

In addition to FTSE Russell's ESG assessment, this is a selective ESG composite index that screens through assessment of companies' environmental impact and management of climate change risk.

FTSE Russell confirms that Eisai Co., Ltd. has been independently assessed according to the index criteria, and has satisfied the requirements to become a constituent of the FTSE JPX Blossom Japan Sector Relative Index. The FTSE JPX Blossom Japan Sector Relative Index is used by a wide variety of market participants to create and assess responsible investment funds and other products.
https://www.lseg.com/en/ftse-russell/indices/blossom-japan　

MSCI ESG Ratings investigates and analyzes a company’s management of ESG risks and opportunities, rating companies on a seven-point scale from AAA to CCC. Eisai Co., Ltd. received the highest rating of “AAA” for the second consecutive year in 2025.

This is a comprehensive ESG index developed by MSCI, consisting of companies that have received high ESG ratings. (The index was renamed from the MSCI ESG Leaders Indexes in February 2025.)

An index based on the MSCI Japan IMI Index, which serves as its parent index, and covers approximately 99% of the Japanese stock market, reflecting comprehensive ESG risks and incorporating stocks with comparatively superior ESG ratings within their industry.

An index that selects companies in terms of attracting, retaining and promoting women, as well as advancing gender diversity. Selection is based on data regarding female employment disclosed according to the Act on Promotion of Women's Participation and Advancement in the Workplace as well as information publicly disclosed by companies such as company policy on gender diversity.

THE USE BY Eisai Co., Ltd. OF ANY MSCI ESG RESEARCH LLC OR ITS AFFILIATES (“MSCI”) DATA, AND THE USE OF MSCI LOGOS, TRADEMARKS, SERVICE MARKS OR INDEX NAMES HEREIN, DO NOT CONSTITUTE​A​SPONSORSHIP, ENDORSEMENT, RECOMMENDATION, OR PROMOTION OF Eisai Co., Ltd. BY MSCI. MSCI SERVICES AND DATA ARE THE PROPERTY OF MSCI OR ITS INFORMATION PROVIDERS, AND ARE PROVIDED ‘AS-IS’ AND WITHOUT WARRANTY. MSCI NAMES AND LOGOS ARE TRADEMARKS OR SERVICE MARKS OF MSCI.
THE INCLUSION OF Eisai Co., Ltd. IN ANY MSCI INDEX, AND THE USE OF MSCI LOGOS, TRADEMARKS, SERVICE MARKS OR INDEX NAMES HEREIN, DO NOT CONSTITUTE A SPONSORSHIP, ENDORSEMENT OR PROMOTION OF Eisai Co., Ltd. BY MSCI OR ANY OF ITS AFFILIATES. THE MSCI INDEXES ARE THE EXCLUSIVE PROPERTY OF MSCI. MSCI AND THE MSCI INDEX NAMES AND LOGOS ARE TRADEMARKS OR SERVICE MARKS OF MSCI OR ITS AFFILIATES.

This is a domestic equity index designed to focus on companies with well-established gender diversity policies embedded in their corporate culture, and that commit to providing equal opportunities to employees regardless of gender.

Morningstar, Inc., and/or one of its affiliated companies (individually and collectively, “Morningstar”) has authorized Eisai Co., Ltd. to use of the Morningstar® Japan ex-REIT Gender Diversity Tilt Index Logo (“Logo”) to reflect the fact that, for the designated ranking period, Eisai Co., Ltd. ranks within the top group of companies comprising the Morningstar® Japan ex-REIT Gender Diversity Tilt Index (“Index”) on the issue of gender diversity in the workplace. Morningstar is making the Logo available for use by Eisai Co., Ltd. solely for informational purposes. Eisai Co., Ltd.’s use of the Logo should not be construed as an endorsement by Morningstar of Eisai Co., Ltd. or as a recommendation, offer or solicitation to purchase, sell or underwrite any security associated with Eisai Co., Ltd. The Index is designed to reflect gender diversity in the workplace in Japan, but Morningstar does not guarantee the accuracy, completeness or timeliness of the Index or any data included in it. Morningstar makes no express or implied warranties regarding the Index or the Logo, and expressly disclaims all warranties of merchantability or fitness for a particular purpose or use with respect to the Index, any data included in it or the Logo. Without limiting any of the foregoing, in no event shall Morningstar or any of its third-party content providers have any liability for any damages (whether direct or indirect), arising from any party’s use or reliance on the Index or the Logo, even if Morningstar is notified of the possibility of such damages. The Morningstar name, Index name and the Logo are the trademarks or services marks of Morningstar, Inc. Past performance is no guarantee of future results.

The iSTOXX MUTB Japan Platinum Carrier 150 Index is an index jointly developed by Mitsubishi UFJ Trust and Banking Corporation and STOXX, a subsidiary of Deutsche Börse. It consists of 150 Japanese companies that actively contribute to employee career development.

Compiled by the Access to Medicine Foundation once every two years, the Access to Medicine Index is a survey which evaluates 20 global pharmaceutical companies leading in initiatives for access to medicine issues in developing and emerging countries. Eisai has been ranked 14th in 2024.

The CDP is a non-profit organization based in London that requests top ranking market capitalization companies and municipalities in principal countries to disclose information on climate change measures, water resource protection and forest conservation. In 2025, Eisai was selected for the A List, the highest rating, in both Climate Change and Water Security for the second consecutive year.

CDP’s Supplier Engagement Assessment evaluates how effectively companies are working collaboratively with their suppliers to address climate change issues. With respect to our responses to CDP’s 2024 Climate Change Questionnaire, our engagement with suppliers was highly evaluated, and we have been selected as a Supplier Engagement Leader, the highest rating in the assessment.

The Ministry of Economy, Trade and Industry (METI) and Tokyo Stock Exchange (TSE) publishes a list of enterprises that are outstanding in encouraging women’s empowerment in the workplace. The purpose of the initiative is to introduce listed businesses as attractive investment opportunities to investors who place emphasis on medium- and long-term corporate value improvement, thereby attracting investment to such companies, as well as accelerating women's workplace empowerment and corporate information disclosure. Eisai was selected for the list in 2024.

The NIKKEI Sustainable Management Survey, SDGs Management Edition, rates corporate initiatives for achieving the United Nations’ Sustainable Development Goals (SDGs) in four categories of SDGs Strategy & Economic Value, Social Value, Environmental Value, and Governance. Eisai was recognized with a 4-star rating.

Eisai was recognized with a 4-star rating in the NIKKEI Sustainable Management Survey, Smart Work Edition,  which recognizes leading companies that aim to maximize their corporate value by accelerating investment in human resources while making the most of their human resources and generating new innovations, improving productivity. This survey, conducted by Nikkei Inc. since 2017, targets listed companies and leading unlisted companies nationwide, and evaluates “Smart Work Management”, which is defined as an initiative to maximize organizational performance through three elements: human resource utilization, human resource investment, and technology utilization, and is evaluated on a five-star scale.