Environmental Reporting

In some cases the sum of individual values may not be consistent with total values, due to rounding of data.

Third-party assured values (Independent Assurance Report) are indicated with the  mark.

Response to global warming

Contribution to Realizing a Low Carbon Society

Prediction of CO2 Emissions in the Building Operation Stage and Reduction Percentage

The environmentally friendly design of Taisei Corporation is carried out taking into consideration CO2 emissions, green procurement, biodiversity, and CASBEE in the implementation of the design project, with the aim of contributing to a low carbon society, recycling society, and society that co-exists with nature.

External Awards

“The CO2 Zero Action” and “the Eco Model initiatives” at our construction sites have been highly evaluated, and in FY 2013 we were the recipient of the Minister for the Environment Award for Activities to Prevent Global Warming.

External Awards
Response to Climate Change and Information Disclosure

CDP is a non-profit organization launched in London, UK in 2000. Since 2002 they distribute questionnaires to the world's leading companies requesting information disclosure on climate change, on behalf of institutional investors. In 2014, with the support of 767 institutional investors (total assets under management US$92 trillion (about 9,500 trillion yen)), they distributed questionnaires regarding climate change to more than 6,000 companies throughout the world.
In Japan, after starting in 2006 with the top 150 companies by market capitalization, currently the questionnaire is distributed to 500 companies.
At present in Europe about 50% of institutional investors carrying out long term investment, mainly pension funds, attach great importance the information disclosed in these questionnaires.
Since 2006, Taisei Corporation has been responding to the “Climate Change” questionnaire, and since 2010 has been selected as a leader disclosure company for 4 consecutive years.
In the questionnaire, comprehensive information disclosure regarding climate change is required, such as awareness and management of business risks and opportunities identified by the influences of climate change, whether business strategy takes into consideration climate change, what is the responsibility within the company for decision making regarding these, status of calculation of emissions and reduction activities, etc.
Since FY 2012 we have started determining the CO2 emissions from some overseas construction sites, and the calculation results are disclosed to CDP. In FY 2013 we calculated the emissions from building and civil engineering sites in Taiwan, from which it was found that emissions were about 9,000 t.

Supply Chain

In the CDP supply chain program, disclosure of information regarding CO2 emissions of the company's suppliers, etc., is required. In FY 2013 Taisei Corporation was one of the few Japanese companies to participate in this program, and in FY 2014 we have requested the cooperation of more than 40 suppliers from among CDP participating companies. Other CDP programs that companies undertaking are Water (water risks) and Forest (forest risk commodities), which currently have a major effect throughout the world, for which information disclosure questionnaires started to be distributed in 2009.

Supply Chain
Scope 3 Emissions Calculation

One item dealt with in the CDP climate change questionnaire program is Scope 3 emissions within the CO2 emissions criteria based on the GHG Protocol*. The CO2 emissions in 15 categories are calculated for the whole life cycle from procurement of raw materials, product use, and disposal, including the supply chain. A common category for most types of company is CO2 emissions during use of a product (in the construction industry, this is during operation of the building), and it is the responsibility of companies to reduce this.
Since 2013, Taisei Corporation has participated in the Ministry of the Environment's environmental information disclosure program as a trial company, to determine a broader range of Scope 3 emissions. Also, we are developing buildings with lower CO2 emissions.

*GHG Protocol: Development and provision of standards for calculation and reporting of global warming gas emissions, jointly established in 1998 by the World Business Council for Sustainable Development (WBCSD) and the World Resources Institute (WRI).

Efficient use of resources

Promotion of 3R Activities

The rate of recycling of construction waste by Taisei Corporation in FY 2013 was 95.6%* (target 95% or higher). The percentage of weight converted mixed waste in new construction (excluding concrete rubble, asphalt concrete rubble, mud) is 12.6% (target 30% or less), and the quantity of industrial waste commissioned for disposal in civil engineering construction was 289 t/100 million yen (target 350 t/100 million yen or less).
From FY 2014 an intensity index of reduction in industrial waste in civil engineering construction has been set to promote waste reduction activities.

Improvement in Construction Waste Recycling Percentage

Construction Waste Emissions

Promotion of Green Procurement

Operations based on the Green Procurement Guidelines

Taisei Corporation has defined “Green Procurement Guidelines” with the objective of using materials, equipment, and construction methods with small environmental loads when designing, constructing, or demolishing structures. Every year the green procurement items are reviewed. The percentage of green procurement in FY 2013 was 33.4%*.
Five items were added to the 77 items in FY 2012 to give 82 items (see the table on the right). In FY 2013, 59 items were adopted in 70 design – build projects, and the number of items adopted per project was 8.0.
On the other hand, the introduction of materials such as ready mixed concrete using blast furnace cement, blast furnace cement, recycled aggregates, slag aggregates, recycled steel materials (recycled reinforcement and structural steel), liquefied stabilized soil, high efficiency fluorescent lighting fixtures, environmentally friendly thermal insulation, etc., onto construction sites is being promoted.

Green Procurement Items

Results for Adoption of Green Procurement Items by Eco-sheet CASBEE

Response to environment risk

Proper Management of Construction Waste

Increasing Awareness of Environmental Laws and Regulations and Thorough Preventative Measures

A total of 1,296 “site environmental patrols”, which inspect compliance within the company with environmental laws and regulations within construction sites, have been carried out on 732 construction sites throughout the country. The matters identified are shown in the graph. Corrective and preventative actions are taken with respect to the matters identified to ensure continuous improvement.

Percentages of Matters Identified (FY 2013)
Increase in Rate of Use of the Electronic Manifest

Paper manifests are being converted to electronic manifests in order to prevent errors or omissions in filling in paper manifests by waste producing companies, collection and transport companies, and disposal companies, in order to ensure proper processing of waste. In FY 2013, a rate of use of 86.4%* was achieved.

Proper Management of Hazardous Chemical Waste

In “Important Points of Environmental Management at Branch Offices and Construction Sites”, which is used in in-house lecture meetings, the proper management of hazardous chemical wastes such as asbestos and PCBs, etc., is prescribed.

Dealing with Complaints at Construction Sites

Details of the main external complaints regarding the environment received at construction sites throughout all Japan in FY 2013 and their countermeasures are as follows.

Percentages of Complaint Items and Examples of Responses (FY 2013)
Thorough Implementation of Proper Processing and Management of Contaminated Soil

Of the real estate for sale owned by Taisei Corporation, surveys were carried out at 5 sites in FY 2013 based on the Soil Contamination Countermeasures Act, and at no site was there any countermeasure construction necessary.

Environmental technology research and development and improvement in proposal capability

Providing Environmental Technologies

In the field of energy efficiency and response to global warming, smart grid related technologies are evolving, construction of zero energy building (ZEB) demonstration buildings is proceeding, and response to the US building environment performance evaluation Leadership in Energy and Environment Design (LEED) is also advancing. We continue to undertake initiatives in renewable energy, such as power generation using biomass, foundation construction methods for megasolar, etc. In the field of environmental coexistence, we have improved biodiversity evaluation tools, and have developed methods of designing water and green networks.
In FY 2013 there were 30 media announcements regarding research and development of environmentally friendly technologies and projects applying them.

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