IS Dongseo

What IS Dongseo does

IS Dongseo Co., Ltd. is a publicly listed Korean conglomerate (KOSPI, KRX 300 constituent) founded in 1975, operating across three core divisions: Construction, Environment, and Concrete. The Construction division develops residential apartments under the Eileen's Garden (에일린의 뜰) and Pentahills W (더블유) brands, mixed-use complexes, and civil engineering infrastructure, serving individual homebuyers and urban development authorities across Korea. The Environment division, operated through subsidiaries Insun ENT (45% nationwide, 70% Seoul metro market share in scrap collection) and IS Eco Solution, provides construction waste management, end-of-life vehicle dismantling and recycling, and a complete closed-loop battery recycling value chain (collection-preprocessing-post-processing-resource circulation) with 7,500 tons/year processing capacity and 95%+ recovery rates. The Concrete division manufactures PHC piles and precast concrete products at five Korean factories, holding Asia's largest production scale and a portfolio of 72 registered patents including proprietary 110MPa ultra-high-strength PHC piles.

The company makes money through a mix of one-time housing unit sales, B2B concrete product sales (project-by-project pricing via dedicated inside sales), transaction fees for waste management and recycling services, and recovered material sales (Black Mass, NCM compounds, lithium carbonate) to battery manufacturers. GTM combines direct-to-consumer showrooms and model home openings for housing, inside sales contacts for concrete (PILE and PC divisions), direct contracts with municipal governments and industrial clients for environmental services, and B2B partnerships with battery manufacturers domestically and internationally via InterBattery exhibition participation. Strategic recent moves include the 2023 acquisition of BTS Technology (European battery recycling), the 2024 launch of IS Eco Solution to consolidate battery recycling, and a 2025 framework agreement with CNGR for battery materials supply chain cooperation. The company holds ISO 14001/45001/9001, EPD, and TCFD certifications, with 2025 ESG ratings of Integrated C, Environment B+, Social A from the Korea ESG Standards Institute.

Name

IS Dongseo

Legal name

IS Dongseo Co., Ltd. (아이에스동서 주식회사)

Website

https://isdongseo.co.kr

Company type

Public

Founded year

1975

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

IS Dongseo is a publicly listed Korean conglomerate operating construction (residential apartments, civil engineering), environmental services (waste management, battery recycling), and concrete manufacturing (PHC piles, precast concrete) with Asia's largest PHC pile production capacity and a complete battery recycling value chain.

Ownership category

akta.pro rank

Product category

Diversified Construction and Environmental Services

NAICS

Engineering Services (54133), Miscellaneous Manufacturing (339)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Chemical & Petrochemical Plant Construction (IMAFADAA)

akta.pro secondary industries

Supply Chain & Product Environmental Compliance (RoHS, WEEE, Packaging EPR, Eco-Design/Labeling Regulations) (EUAHABAJ), Environmental & Permitting Compliance During Construction (Erosion Control, Wildlife Mitigation, Monitoring) (EUAMAFAM)

Keywords

• Residential construction
• Precast concrete products
• Environmental waste management
• Battery recycling services
• Urban redevelopment

Headquarters

HQ city

Yeoksamdong

HQ country

South Korea

HQ region

Asia

Offices7 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales, Technology or R&D, Others

Revenue model

1. Construction Business: Revenue from residential housing projects ( apartments, mixed-use complexes), urban development, civil engineering works, and building construction. Primary brand is '에일린의 뜰' for apartments and 'W' for high-rise mixed-use properties. Projects span redevelopment, reconstruction, and new development across Korea.
2. Concrete Manufacturing: Sale of PHC piles, precast concrete (PC) products for building and civil engineering applications. Products include structural elements like hollow columns, shear walls, slabs, and specialty foundation piles sold on a per-unit or project basis.
3. Environmental Services: Comprehensive environmental management including construction waste collection and transport, intermediate processing, recycled aggregate production, incineration and steam sales, and landfill operations. Revenue from waste processing fees and recycled material sales.
4. Battery Recycling: Secondary battery collection, preprocessing (Black Mass/Black Powder production), and post-processing (recovery of lithium, cobalt, nickel as NCM compounds, lithium carbonate). Revenue from recovered material sales to battery manufacturers.
5. Automotive Resource Circulation: End-of-life vehicle collection, dismantling, and recycling. Revenue from recovered parts sales in the used vehicle market, and ferrous/non-ferrous scrap sales. Includes EV-specific battery recovery and resale.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels8 records

Core offering

IS Dongseo is a diversified Korean conglomerate operating across three core divisions: Construction (residential apartments under the Eileen's Garden and Pentahills W brands, civil engineering, urban redevelopment projects); Environment (construction waste collection and recycling, end-of-life vehicle dismantling, secondary battery recycling value chain, wind power generation); and Concrete (manufacturing of PHC piles and precast concrete products with Asia's largest production capacity). The company develops, manufactures, and sells its own products while providing integrated environmental services to municipalities and industrial clients.

Product overview

IS Dongseo is a diversified Korean conglomerate operating across three core divisions: Construction (residential, commercial, civil engineering, urban development), Environment (waste management, battery recycling, renewable energy), and Concrete (PHC piles, precast concrete). The company maintains several branded product lines including the 'Eileen's Garden' residential apartment brand, the 'W' ultra-high-rise brand, and 'IS BIZ Tower' knowledge industry centers. Environmental operations include a complete waste battery recycling value chain and wind power generation services. The company serves the Korean domestic market with manufacturing facilities across multiple locations.

Differentiator

Problem solved

Functional benefit

Brands

• Eileen-eseuteul (에일린의뜰): Apartment brand representing harmonious living spaces with human and environmental sensitivity, featuring 'Human Design' philosophy
• W (더블유)
• IS BIZ Tower (아이에스BIZ타워)

Products and services

• Construction Business (건설사업) Core construction division covering residential housing (apartments and mixed-use complexes), commercial buildings, civil engineering, and urban redevelopment projects across Korea under the Eileen's Garden (에일린의 뜰) and Pentahills W brands.
• Environmental Business (환경사업) Comprehensive environmental services including construction waste collection and transport, recycling, waste battery recycling value chain, end-of-life vehicle dismantling and recycling, and wind power generation operations. Operates 21+ environmental facilities nationwide with Industry No. 1 position in construction waste disposal.
• Concrete Business (콘크리트사업) Manufacturing and sales of PHC PILE (pre-stressed high-strength concrete piles) and PC (precast concrete) products for construction and civil engineering applications, with Asia's largest production capacity. Includes shear walls, hollow columns, long-span and short-span slabs, and seismic-resistant mechanical coupler connections.
• 에일린의 뜰 (Eileen's Garden) Apartment Brand Residential apartment brand representing human-centered design philosophy, targeting families and individuals seeking harmonious living spaces with environmental and cultural sensibility. The brand embodies the 'Human Design' philosophy.
• Pentahills W (더블유) Ultra-High-Rise Brand Ultra-high-rise mixed-use residential complex brand representing hotel-grade luxury living, targeting affluent customers seeking premium high-rise lifestyle experiences for true leaders.
• IS BIZ Tower Knowledge Industry Center Knowledge industry center brand providing smart and trendy business spaces with integrated community facilities and business infrastructure for corporate tenants.
• Waste Battery Recycling (폐배터리 재활용) Complete secondary battery recycling value chain covering collection, preprocessing (crushing and Black Mass/Black Powder production), post-processing (lithium, cobalt, nickel recovery), and resource circulation. Only domestic operator with the full chain, achieving 95%+ material recovery rate with 7,500 tons/year processing capacity.
• Automobile Resource Circulation (자동차자원순환) End-of-life vehicle recycling including safe dismantling of electric and internal combustion vehicles, battery storage and recycling, achieving a domestic-first 95% recycling rate through the 4,000 horsepower maximum-scale shredder facility.
• Environmental Facility EPC and O&M Environmental facility project development, design, construction (EPC), and operations and maintenance services for incineration, landfill, and bio-gas facilities through Environment Energy Solution subsidiary.
• Wind Power Generation (풍력발전) Wind power generation business covering project discovery, site development, EPC, and O&M services for both onshore and offshore wind farms.

Quantifiable outcome

• Battery material recovery rate exceeding 95%
• +5 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Eight partnerships are on record, tiered minor and core.

• 캄보디아 현지 고등학교 (Cambodia Local High School)minorOthers · 10 March 2026IS Dongseo supported the remodeling construction of aging facilities at a local high school in Cambodia as part of its international education environment improvement project, contributing to social contribution activities abroad.
• 경산시 (Gyeongsan City)minorStrategic or Co-development Partner · 4 March 2026IS Dongseo signed a business agreement with Gyeongsan City for regional construction industry activation. The partnership aims to promote local construction projects, community development, and regional economic growth in Gyeongsan.
• 통영시 (Tongyeong City)minorStrategic or Co-development Partner · 27 February 2026IS Dongseo contributed 20 million KRW in talent development fund to Tongyeong City, supporting local educational and human resource development initiatives.
• CNGR (China Nickel, Cobalt & Rare Earth Group)coreStrategic or Co-development Partner · 1 January 2025CNGR and IS Dongseo signed a framework agreement for battery recycling business cooperation. This partnership enables the sourcing of battery materials and establishes a joint framework for the processing and supply of recycled battery materials for the EV supply chain.
• 대한농구협회 (Korean Basketball Association)minorOthers · 1 January 2025Chairman Kwon Hyuk-woon was elected as the 35th President of the Korean Basketball Association in January 2025 (previously inaugurated as 34th President in 2021), contributing to Korean basketball development and sponsoring KLPGA tour events (IS Dongseo Busan Open).
• LK삼양 (LK Samyang)coreStrategic or Co-development Partner · 12 November 2024IS Dongseo and LK Samyang signed an MOU for electric vehicle fire early detection system business cooperation. The partnership focuses on developing and deploying technology for early detection of EV fires, combining IS Dongseo's environmental technology with LK Samyang's materials expertise.
• LS MnM (LS Mining & Materials)coreStrategic or Co-development Partner · 8 November 2024IS Dongseo and LS MnM signed an MOU for battery recycling business cooperation. This partnership enables collaboration on the collection and processing of end-of-life batteries and battery manufacturing scrap for recycling.
• 충청북도·청주시 (North Chungcheong Province / Cheongju City)minorStrategic or Co-development Partner · 1 March 2024Signed a business agreement with North Chungcheong Province and Cheongju City for the lithium-ion battery recycling business at Ochang Technopolis, facilitating local government support for the company's battery recycling facility development.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@isdongseo7748/videos
• Facebookfacebook.com/isdongseo1?checkpoint_src=any
• Instagraminstagram.com/isdongseo_official

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries13 records

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments2 records

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about IS Dongseo