CSR・ISO

Introduction

DNC is committed to optimal customer satisfaction, public contribution and good-faith efforts toward environmental conservation and improvement via reliable production. Focus is invariably placed on customers and on quicker, more economical and superior production based on technological advances and accumulated expertise. The organization is fully committed to environmental conservation, safety and compliance, and actively pursues technological development to keep up with rapidly changing public environments and client needs.
The highest priority is placed on customer satisfaction and environmental conservation/improvement through activities of us.

Environment policy

【Environment/safety/quality policies】 With a philosophy of respect for people, DNC strives to maintain and improve its public profile, recognizes the developing needs and expectations of related parties, and pursues ongoing growth toward the future through activities of us. The company identifies risks related to needs and expectations to boost its value via stringent compliance, good-faith interaction, staff development and ongoing improvement of its effective management system.

Organization

CSR committee CSR activities are conducted in line with the company’s code of conduct. Our public contribution is pursued in line with the company’s environmental goals and targets.

Environmental conservation
creation activities

DNC environmental conservation/creation activities in FY 2019

General goals Specific targets FY 2019 targets FY 2019 evaluation FY 2020 targets
Environmental management Improved environmental management All departments
Activities for improved environmental management

Promotion of environmental protection/public contribution activities
1) Activities for improved environmental management
(i) Response to laws, regulations, environmental risks and similar
(ii) Disclosure of environmental information
(iii) Promotion of PR activities for related parties

2) Promotion of environmentally friendly design
(i) Technological development/design/proposal in relation to low-carbon/recycling-oriented/nature-symbiotic considerations and measures to prevent issues with chemicals

Examples
- Support for recovery from Yoshida river basin damage caused by Typhoon No. 19 in Miyagi Prefecture
- Hosting of interns and on-site tours at sites in Japan and abroad
- Real-time display of noise and vibration levels via large panels installed on temporary fencing
- Mist spraying along temporary fencing when dust meter trigger values are exceeded
Promotion for improvement and application of environmentally friendly design and conservation technology Business Promotion/Design
Environmentally friendly design/proposals
Building Construction/Civil Engineering
Design change, VE proposals and innovation, including environmental measures
Low-carbon promotion Global warming countermeasures in construction and design Construction/civil engineering
Reduction of CO2 emissions from construction
Construction/civil engineering
23% reduction in CO2 output per unit of completed work (t-CO2/\100 million) from the FY 2005 – 2012 average
Construction
Satisfactory

Civil engineering
Satisfactory
Construction/civil engineering
26% reduction in CO2 output per unit of finished work (t-CO2/\100 million) from the FY 2005 – 2012 average
Examples
- Effective on-site use of surplus soil
- Energy-efficient construction machinery/vehicles
- Design/construction of ZEB and energy-saving buildings
Offices
Reduction of annual energy consumption
8% reduction from FY 2015 Satisfactory 10% reduction from FY 2015
Examples
- Lights-off during lunch breaks, appropriate air-conditioning temperature control
- Promotion of Cool Biz/Warm Biz initiatives
Recycling-oriented promotion Measures relating to construction byproducts
Reduction of construction byproduct output through separation/disposal and appropriate treatment
Construction/civil engineering
Improved byproduct separation (excluding concrete, asphalt, debris and sludge)
Construction
80% or more
Civil engineering
85% or more
Construction
Satisfactory

Civil engineering
Satisfactory
Construction
80% or more
Civil engineering
85% or more
Examples
- Reduced construction-sludge production in shield and SMWV work
- Reduced woodchip output based on system forms, steel forms and pinpoint support
- Reduction of packing material output
Nature-symbiotic promotion Biodiversity conservation and sustainability Construction/civil engineering
Promotion of technological development and biodiversity conservation

Promotion of biodiversity conservation and sustainability in construction work
1) Promotion of sustainability based on biodiversity conservation and natural-environment development
(i) Measures for biodiversity conservation in planning
- Research on/proposal of measures for symbiosis with various organisms in construction planning
(ii) Measures for biodiversity conservation in construction
- Promotion of activities for biodiversity conservation in construction

Examples
- Transplant of coral from a sewage plant construction site in Papua New Guinea
- Transplant of Christmas orchids from a solar panel installation site to a green area
- Adoption of special lighting appropriate for mountain hawk eagles in tunnel construction
- Protection of a Little Tern nesting ground during the breeding season at a development work site

Activities

Promotion of on-site efforts for biodiversity conservation and sustainability (FY 2019)

International Division

During DNC’s construction of a full-scale sewage facility in Papua New Guinea’s heavily populated capital (Port Moresby), coral from the local coastal reef was transplanted to another site to protect the rich marine environment from treated sewage to be piped into the sea (Port Moresby Sewerage System Upgrading Project/Papua New Guinea).