The Investment Corporation has continuously participated in the GRESB Real Estate Assessment since 2011, and in the 2026 GRESB Real Estate Assessment, the Investment Corporation received a “4 Stars” in GRESB Rating, which is based on GRESB Overall Score and its quintile position relative to global participants. It also won a “Green Star” designation for the 15th consecutive year by obtaining a score higher than 50% of the points allocated to each component; “Management Component” that evaluates policies and organizational structure for ESG promotion, and “Performance Component” that assesses environmental performance and tenant engagement of properties owned.

Click here for more details about the GRESB Real Estate Assessment

The Investment Corporation was certified and registered for EcoAction21, an environmental management system formulated by the Ministry of the Environment on March 29, 2024.

Eco Action 21

Eco-Action 21 is an Environmental Management System formulated by the Ministry of the Environment that specifies the methods by which organizations can voluntarily and actively implement environmental initiatives. Eco-Action 21 Certification/Registration Program is the certification and registration system by a third party, Eco-Action 21 central secretariat office, for organizations promoting environmental management based on “Eco-Action 21 Guidelines”* and disclosing the progress in the form of environmental management report.

DOI obtained certification by the SBTi (SBT initiative) about greenhouse gas (GHG) emissions reduction targets on July 10, 2025.

SBT

SBT (Science-Based Targets) are GHG emissions reduction targets set by companies that are aligned with the levels required by the Paris Agreement, which aims to limit the global temperature increase to 1.5°C, well below the 2°C limit relative to pre-industrial level. SBT certification is certified by the SBTi, an international initiative established on May 13, 2021 by four organizations: UNGC (the United Nations Global Compact), CDP, WRI (the World Resources Institute), and WWF (the World Wide Fund for Nature). SBT certifies that the SBT set by companies are based on scientific evidence.