Environmental Performance Data

Third-party Guarantee

The actual values marked with a ☑ among the following environmental performance data have received a third-party guarantee from Ernst & Young ShinNihon LLC.

Warranty report (PDF:50KB)

Boundaries

Starting from the FY2023 results, environmental performance data is disclosed by combining the data from The Nippon Road Co., Ltd. and Maruhiko Watanabe Construction Inc.

Decarbonization

Emissions from overseas subsidiaries and certain affiliates are estimated using domestic emissions data and overseas net sales figures.

CO2Emissions: Results and Goals（Scope1＆Scope2）

Category Unit FY2022 FY2023 FY2024
Actual Actual Actual
During Construction Scope1 t-CO2 150,718 159,726 ☑153,140
Scope2 45,400 67,440 ☑50,793
Total 196,118 227,166 ☑203,933
Intensity t-CO2／
amount of sales
(¥100 millions)		 11.29 13.35 12.34
Own Offices
＋
Storehouses and factories		 Scope1 t-CO2 2,878 62,672 ☑86,495
Scope2 15,713 33,426 ☑24,303
Total 18,591 96,098 ☑110,798
Total Scope1 t-CO2 153,596 222,397 ☑239,635
Scope2 61,113 100,867 ☑75,096
Total 214,709 323,264 ☑314,731

Note: These emission boundaries cover both domestic and overseas consolidated entities, where “domestic and overseas consolidated” refers to individual and consolidated subsidiaries.
The significant year-on-year increase in CO2 emissions from our own offices, storehouses, and factories in FY2023 is primarily due to the inclusion of CO2 emissions from The Nippon Road Co., Ltd. in the calculation.
Until FY2022, diesel fuel used for transporting construction-generated soil had been classified as Scope 1 during the construction phase. However, following the partial systematization of calculations and a comprehensive review of the overall methodology, this fuel use was reclassified as Scope 3 Category 5 (waste generated by the business). As a result, the Scope 1 emissions during construction listed above exclude 19,724 t-CO2 for FY2023 and 8,482 t-CO2 for FY2024 related to the fuel used for transporting construction-generated soil. These emissions are now included under Scope 3 Category 5. The FY2022 figures in the table above do not reflect the impact of this change.

Supply Chain CO2 Emissions（Scope3）

Category Unit FY2022 FY2023 FY2024 note
1.Purchased goods / services t-CO2 1,783,512 2,293,140 ☑2,448,112 Actual values are used for steel materials, rebar, ready-mixed concrete, cement, aluminum products, glass, asphalt mixture, and crushed stone. All other materials are calculated using the company’s internal system.
2.Capital goods 211,335 161,232 ☑87,531
3.Fuel and energy related activities 18,285 25,296 ☑22,969
4.Upstream transportation and distribution 21,917 26,305 ☑29,166
5.Waste generated from business 144,583 161,321 ☑116,369
6.Business trip 2,583 2,667 ☑2,767
7.Employee commuting 5,784 5,919 ☑6,109
8.Upstream leased assets ‐ ‐ ‐ Not included in the calculation
9.Downstream transportation and distribution ‐ ‐ ‐ Not included in the calculation
10.Processing of products sold ‐ ‐ ‐ Not included in the calculation
11.Use of sold products*1 3,753,163 2,500,248 ☑1,032,399 Design and construction projects (domestic and overseas, 50-year operation period)
12.Disposal of sold products 83,302 110,949 ☑59,700
13.Downstream lease assets*2 24,390 37,465 ☑44,136
14.Franchise ‐ ‐ ‐ Not included in the calculation
15.Investment ‐ ‐ ‐ Not included in the calculation
Scope3 total 6,048,854 5,324,542 ☑3,849,259

Note: These emission boundaries cover both domestic and overseas consolidated entities, where “domestic and overseas consolidated” refers to the parent company and its consolidated subsidiaries.
Beginning with FY2023 results, cement, asphalt mixture, and crushed stone were added to the Category 1 calculation scope.
Starting from FY2024 results, following the partial systematization of calculations, other materials were also added to Category 1 (calculated using the SHIMIZU Carbon Assessment Tool). As a result, GHG emissions for “other materials” in Category 1 increased by 667,925 t-CO2 in FY2024. The figures for prior fiscal years in the tables above do not reflect the impact of this change.

Energy Use: Results and Goals

Category Scope Target energy Unit FY2022
(Domestic and overseas consolidated)		 FY2023
(Domestic and overseas consolidated)		 FY2024
(Domestic and overseas consolidated)
During Construction Scope1 Kerosene GJ 33,819 13,979 ☑13,898
Diesel Oil 2,132,022 2,232,509 ☑2,179,660
Heavy oil 32,257 69,609 ☑43,091
Gasoline 0 0 0
City gas 0 0 0
LP gas 0 0 0
Scope2 Electricity 360,908 529,045 ☑466,944
Cold water 0 0 0
Hot water 0 0 0
Subtotal 2,559,006 2,845,142 2,703,593
Own Offices + Storehouses and factories Scope1 Kerosene GJ 3,844 5,329 ☑16,901
Diesel Oil 8,711 69,481 ☑65,828
Heavy oil 3,775 716,871 ☑690,754
Gasoline 4,715 5,074 ☑60,243
City gas 22,682 109,401 ☑173,708
LP gas 5 8 ☑10
Scope2 Electricity 148,652 316,146 ☑335,089
Cold water 12 13 ☑13,236
Hot water 7 6 ☑6,196
Sub total 192,403 1,222,229 1,361,966
Total 2,751,409 4,067,471 ☑4,065,559

Note: Beginning with FY2023, the heavy oil (A) consumption for our own offices, storehouses, and factories includes fuel used by the company-owned SEP vessel Blue Wind.
The significant year-on-year increase in energy consumption at our own offices, storehouses, and factories in FY2023 is primarily due to the inclusion of CO2 emissions from The Nippon Road Co., Ltd. in the calculations.
In some consolidated subsidiaries, energy use had previously been estimated based on the year-on-year change in net sales. Following improvements in the data collection process, kerosene and gasoline consumption at our own offices, storehouses, and factories increased significantly in FY2024 compared to the previous fiscal year.

Resource Recycling

Waste

Category Unit FY2022 FY2023 FY2024
(Domestic and overseas consolidated) (Domestic and overseas consolidated) (Domestic and overseas consolidated)
(Domestic non-consolidated) (Domestic non-consolidated) (Domestic non-consolidated)
Construction Waste*1 Hazardous Waste 1,000 tons 10 2 3
8 1 ☑2
Total Waste 1,000 tons 2,124 2,690 1,477
1,791 1,838 ☑1,356
Non-recyclable Waste 1,000 tons 64 304 113
61 86 ☑58
Recycled Waste 1,000 tons 2,059 2,386 1,364
1,730 1,752 ☑1,298
Office Waste*2 Total Waste 1,000 tons 1.0 0.8 0.9
0.7 0.6 0.7
Non-recyclable Waste 1,000 tons 0.2 0.1 0.1
0.1 0.0 0.1
Recycled Waste 1,000 tons 0.8 0.7 0.7
0.6 0.6 0.6
  1. Note: Wastewater data represent discharges to public systems (up to FY2023 including releases to rivers, and from FY2024 covering only discharges to sewer systems).
  2. Water intake includes only tap water and excludes company-owned grounds, the technical research laboratory, Mokkoujou, and investment development properties.

Resource Use

Water usage and wastewater records

We have no legal violations regarding wastewater.

Category Unit FY2022 FY2023 FY2024
(Domestic and overseas consolidated) (Domestic and overseas consolidated) (Domestic and overseas consolidated)
(Domestic consolidated) (Domestic consolidated) (Domestic consolidated)
Water intake Construction 10,000 cubic metre 128.0 127.5 66.9
116.5 117.1 ☑59.6
Office 7.0 16.3 26.8
6.4 15.5 ☑25.1
Water Recycling
(Head Office)		 - - -
1.4 2.5 2.6
Percentage of Recycled from Business Activities ％ 17.9 15.3 10.2
Total 10,000 cubic metre 135.0 143.8 93.7
122.9 132.6 ☑84.7
Water discharge
(Public Wastewater)		 Construction 10,000 cubic metre 2,940.2 3,584.7 70.8
2,675.2 3,293.5 63.1
Office 7.0 8.6 23.4
6.4 8.1 21.6
Total 2,947.2 3,593.3 94.2
2,681.6 3,301.6 84.7

Note: Wastewater data represent discharges to public systems (up to FY2023 including releases to rivers, and from FY2024 covering only discharges to sewer systems). Water intake includes only tap water and excludes company-owned grounds, the technical research laboratory, Mokkoujou, and investment development properties.

Resource Use

Category Unit FY2022 FY2023 FY2024
(Domestic and overseas consolidated) (Domestic and overseas consolidated) (Domestic and overseas consolidated)
Green Procurement
Blast Furnace Ready-mixed Concrete 10,000 cubic metre 21.0 33.4 12.5
Electric Furnace Steel Materials 10,000 tons 22.0 21.8 38.3
Main Construction Materials
Ready-mixed Concrete 10,000 cubic metre 236.9 375.9 141.2
Steel Materials 10,000 tons 37.2 37.3 13.5
Rebar 21.6 21.8 25.7
Tropical Plywood Formwork 1.1 0.2 0.3

Note: Beginning with FY2023 results, the calculation method for tropical plywood formwork usage (including the number of times it is reused) was revised.

Pollution Prevention and Waste

We have no legal violations regarding air pollution prevention.

Emissions of Air Pollutants

Category Unit Emissions source FY2022 FY2023 FY2024
(Domestic and overseas consolidated) (Domestic and overseas consolidated) (Domestic and overseas consolidated)
NOx t Electricity 40.9 72.8 63.0
Diesel Oil 218.6 233.9 228.1
Total 259.5 306.6 291.1
SOx Electricity 36.8 61.0 52.8
Diesel Oil 342.6 384.1 374.6
Total 379.4 445.2 427.5

Emission source unit
NOx: 0.310g-NOx／kWh(Electricity)　3.860 g-NOx／l(Diesel Oil)
SOx: 0.260g-SOx／kWh(Electricity)　6.340 g-SOx／l(Diesel Oil)
(Source: Japan Federation of Construction Contractors)

CFC Gas

Category Unit FY2022 FY2023 FY2024
(Domestic consolidated) (Domestic consolidated) (Domestic consolidated)
CFC gas t 26.5 15.6 16.6

Environmental Accounting

Evaluating the Financial Impact of Climate Change（Environmental Accounting）

Category Cost
(Millions of yen)
Energy-efficiency Cost of energy-efficiency in Shimizu I-2 454
R＆D Environmental business (energy-related)　Ⅳ-1 781
Cost of R＆D on environmental conservation　Ⅳ-2 1,207
Total 2,442

Financial Impact of Pollution, Waste, Materials Use

Category Cost (Millions of yen)
Pollution Cost of steps taken to prevent environmental pollution at the job site Ⅰ-1 10,865
Resource recycling Cost of proper processing of construction by-products Ⅰ-3 21,180
Total 32,045

R＆D Investment for Pollution Alleviation

Category Cost (Millions of yen)
R＆D Investment for Pollution measure, Waste reduction, Recycling, Reuse Raw material reduction 1,040

R＆D Investment for Reduction of Water Relevant Risk

Category Cost (Millions of yen)
R＆D for Water Pollution, Contaminating Soiland Grand Water 82

Environment Management Activity Financial Valuation

Category Cost (Millions of yen)
Management Operation Construction waste measures Ⅲ-2 643
Environmental Protection Measures Operation and maintain of ISO14001 Ⅲ-1 457
Environmental Burden Measures Environment load watching measures Ⅲ-3 734
Environmental Education Environment related seminar attending fee Ⅲ-5 106
Capital Investment Energy saving capital investment Ⅶ-1 15
Total 1,954

Note: The cost boundaries for these items are limited to domestic (non-consolidated) operations.

Material Flows（Domestic consolidated）

The flow chart below shows the flow of energy, water, and material input and waste, water, CO2 , and material output from Shimizu's office and construction activities.

Material Flows

Calculation Standard

Category Item Definition, calculation method, etc.
CO2Emissions: Results and Goals
(Scope1／Scope2)		 During Construction Scope1 Act on Rationalizing Energy Use (Energy Conservation Act)
Act on Promotion of Global Warming Countermeasures (Global Warming Countermeasures Act)
Emissions per base unit of construction （t-CO2/net sales on completed construction (per ¥100 million) calculated at specified construction sites

Based on the calculation method specified by the Japan Federation of Construction Contractors

Energy used at construction sites is measured and calculated for each type of energy as shown below.
  • Electric power: Calculated using the 2023 electric utility-specific emissions factors published by the Ministry of the Environment and the Ministry of Economy, Trade and Industry. CO2 Emissions from Fuel Combustion 2019 (International Energy Agency) is used to calculated emissions from electric power overseas.
  • Kerosine and heavy oil A: Measured from the volume purchased. Calculated using the emissions factors in the Energy Conservation Act and the Global Warming Countermeasures Act.
At Shimizu Corporation, CO2 emissions and energy consumption during construction are calculated at sample sites of all construction sites. The results are distributed across all construction sites based on the sales of each site. In the current fiscal year, among all construction sites (680 domestic building and 177 domestic civil engineering sites), electricity data were aggregated for 401 building and 133 civil engineering sites, while data for other energy sources were aggregated for 256 building and 89 civil engineering sites. For consolidated subsidiaries, figures for Japan are calculated using the reported values under the Energy Saving Act, while figures for overseas are calculated based on the basic unit of sales.
Scope2
Total
Own Offices
+
storehouses and factories		 Scope1 Amount of electricity used at domestic locations x emissions factor based on the Energy Conservation Act, the Global Warming Countermeasures Act, and the GHG Protocol (t-CO2/amount of energy used)
Scope2
Total
Total Scope1 Total of the above.
Scope2
Total
Supply Chain CO2 Emissions 1.Purchased goods and services Basic Guidelines on Accounting for Greenhouse Gas Emissions Throughout the Supply Chain
Database of emissions unit values used in calculating an organization’s greenhouse gas emiss ions throughout the supply chain
GHG Protocol, Scope 3 and Standard
Amount of activity and financial results x emissions factor
2.Capital goods
3.Fuel and energy related activities
4.Upstream transportation and distribution
5.Waste generated from business
6.Business trips
7.Employee commuting
11.Use of sold products
12.Disposal of sold products
13.Downstream lease assets
Total Total of the above.
Energy Use: Results During Construction Diesel, electricity, etc. Energy Conservation Act and GHG Protocol
Energy used at construction sites and offices is measured by the amount of kerosine, electricity, etc. used
Own Offices
+
storehouses and factories		 Electric power, cold and hot water, etc. Energy Conservation Act and GHG Protocol
Electricity used as offices and business locations is measured by the amount of electricity, thermal energy, etc. purchased.
Total Total of the above.
Waste Construction waste Hazardous waste The volume of hazardous waste and total waste (non-recyclable wasted, recycled waste) according the manifest, based on the Waste Management and Public Cleansing Act.
The waste volume is calculated using manifest data.
Total Waste
Non-recyclable waste
Recycled waste
Office waste Total Waste Invoices, etc. from waste management companies for the volume of total general waste (non-recyclable waste, recycled waste), based on the Waste Management and Public Cleansing Act.
Non-recyclable waste
Recycled waste
Water Intake Amount and Displacement Water intake During Construction Aggregated total of invoices from water facilities.
(Amount of tap water purchased for the workplaces and offices)
For consolidated subsidiaries, construction-related calculations are based on the basic unit of sales and the net sales figures of each subsidiary. For office locations, calculations use the water consumption per employee at affiliates and the total number of employees.
Office
Total Total of the above.
Water discharge During Construction During construction, create and calculate sales per unit of sales based on workplace sampling responses.
The office has the same amount of water intake.
Offic
Total Total of the above.

Information Disclosure

We disclose information on climate change, etc. through our responses to the CDP corporate questionnaire.

CDP 2025 Responses (PDF:1.76MB) (Only in Japanese)

CDP Score

Category FY2022 FY2023 FY2024 FY2025
Climate change A A− B A−
Return to Contributing to the Environment
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