Coway
Coway is a South Korean environmental home-appliance company known for water purifiers, air purifiers, bidets, mattresses, and subscription-based maintenance services.
Last updated October 18, 2026
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Overview
Coway Co., Ltd. is a South Korean manufacturer and service company focused on household products associated with water, air, hygiene, and sleep. Its principal categories are water purifiers, air purifiers, bidets, water softeners, mattresses, and related care services. The company combines appliance sales with recurring rental, filter-replacement, sanitation, inspection, and maintenance programs, a model that has helped it build long-term customer relationships in Korea and overseas. The business was established by the Woongjin Group in 1989 as Woongjin Coway. It initially concentrated on water-purification products designed for Korean households, launching a branded water purifier in 1991 and the COMPAC Water Purifier CP-6025 in 1992. Coway expanded into air purification in 1995 and developed a broader environmental-home-appliance portfolio. By 1999, it had become a leading company in South Korea's air-purifier and water-filter markets. Ownership changed several times as the company grew. Financial difficulties at the Woongjin Group led to the sale of its controlling interest to MBK Partners in 2013. Woongjin temporarily reacquired the shares in 2018, but the transaction was followed by another sale process. In 2019, mobile-game company Netmarble agreed to acquire the controlling stake for approximately 1.74 trillion Korean won, becoming Coway's largest shareholder. Coway has continued to operate as a listed company while remaining part of Netmarble's wider corporate portfolio. Coway's international expansion has been particularly significant in Southeast Asia. Its Malaysian subsidiary, established in 2006, became a major overseas business and an important contributor to international revenue. The company also operates through subsidiaries or commercial organizations in the United States, Thailand, Indonesia, Vietnam, Japan, China, and Europe. Overseas operations generally combine product distribution with rental and service networks, rather than relying only on one-time appliance sales. The company has also faced labor, product-safety, and governance issues. Installation and repair technicians, known as CS Doctors, protested during the 2019–2020 ownership transition over employment status and job security. Negotiations following a 47-day strike resulted in an agreement that included the conversion of approximately 1,500 workers to regular employment and improvements to welfare arrangements. In 2016, several ice-making water-purifier models were recalled after reports that trace nickel could leach into water; the episode led to customer complaints, legal action, and the resignation of the chief executive then in office. Coway positions itself as a premium environmental-living brand built around convenience, health, design, and managed ownership. Its product portfolio is organized broadly into Water Care, Air Care, and Body Care, with mattresses and sleep-related offerings extending the brand beyond traditional appliances. Research, testing, and design capabilities are important parts of its differentiation, and the company has received repeated international design recognition, including Red Dot and iF Design awards. In 2021, BTS became a global brand ambassador, supporting Coway's effort to present its products as modern lifestyle appliances in international markets.
History
Coway was founded in 1989 by the Woongjin Group under the name Woongjin Coway. The company's initial business centered on domestic water-purification products, reflecting growing interest in household water quality and convenience in South Korea. A Coway water purifier introduced in 1991 helped establish the brand, followed by the COMPAC Water Purifier CP-6025 in 1992. The company broadened its environmental-appliance strategy in 1995 by entering air purification. Through product development, research, and distribution expansion, it became one of the strongest participants in Korea's water-filter and air-purifier markets. Its business model increasingly incorporated rental and maintenance services, allowing customers to receive regular filter replacement, cleaning, inspection, and repair rather than managing the full product lifecycle themselves. Coway later expanded beyond water and air into bidets, water softeners, mattresses, massage chairs, and associated hygiene and sleep services. This portfolio supported the company's positioning as an environmental and wellness-home brand rather than a conventional appliance manufacturer. Its research facilities have received recognition from organizations and accreditation systems associated with water-quality and product testing, including the Water Quality Association, KOLAS, CSA, and TÜV SÜD-related testing programs. The company experienced major ownership changes during the 2010s. In 2013, financial difficulties at Woongjin led to the sale of the controlling stake to MBK Partners. Woongjin reacquired the shares in late 2018 for approximately 1.68 trillion Korean won, but the company was placed into another sale process less than a year later. Several potential buyers reportedly considered the asset before Netmarble ultimately agreed to purchase the stake for approximately 1.74 trillion Korean won in 2019. Netmarble became Coway's largest shareholder while Coway retained its public listing. The ownership transition coincided with a major labor dispute involving CS Doctors, the technicians responsible for installing and servicing Coway products. Workers and their union demanded direct employment and guarantees concerning job security. The dispute escalated into protests and a strike beginning in January 2020. After negotiations lasting several months, the company and workers reached a settlement that included the conversion of about 1,500 technicians to regular employees and improvements to welfare provisions. The strike lasted 47 days before workers returned to the field. Coway's overseas strategy has focused especially on Southeast Asia. Coway Malaysia, founded in 2006 with an initial investment of 5.8 million Malaysian ringgit, became the company's largest overseas subsidiary and a major distribution and service platform. The company also developed operations in the United States, Thailand, Indonesia, Vietnam, Japan, China, and Europe. International expansion has generally relied on recurring service relationships alongside the sale or rental of appliances. Product quality and governance have also shaped Coway's public profile. In 2016, three ice-making purifier models were found to have issues involving trace nickel leaching into water. Coway recalled products used by an estimated tens of thousands of customers, while customers pursued complaints and legal claims. The controversy resulted in the resignation of then-chief executive Kim Dong-hyun. Separately, Coway has promoted design and innovation as competitive advantages, receiving repeated Red Dot recognition and additional iF Design awards. In 2021, BTS was selected as Coway's global brand ambassador, reinforcing the company's international lifestyle positioning. In 2025, activist investor Align Partners criticized the company's conservative shareholder-return approach and balance-sheet efficiency. Coway responded with a higher shareholder-return target and a share buyback and cancellation announcement. These developments illustrate the continuing tension between Coway's operational expansion, its relationship with controlling shareholder Netmarble, and demands from minority investors for stronger capital returns and governance.
- 2021
BTS appointed global brand ambassador
[1]Coway selected BTS to support global brand-building and product campaigns.
- 2020
Settlement with CS Doctors
[1]A labor settlement followed a 47-day strike and included the conversion of approximately 1,500 workers to regular employees.
- 2019
Netmarble became controlling shareholder
[1]Netmarble acquired the controlling interest after a competitive sale process.
- 2013
MBK Partners acquired the controlling stake
[1]Woongjin sold control of Coway to MBK Partners amid financial concerns.
- 2006
Coway Malaysia established
[1]Coway created its Malaysian subsidiary, which later became a central overseas distribution and service business.
- 1999
Reached leading positions in Korean air and water markets
[1]The company became a leading participant in South Korea's air-purifier and water-filter markets.
- 1995
Entry into air purification
[1]Coway entered air treatment, creating the second major pillar of its environmental-appliance portfolio.
- 1992
COMPAC Water Purifier introduced
[1]Coway expanded its water-purification range with the COMPAC Water Purifier CP-6025.
- 1991
First Coway water purifier launched
[1]The company introduced a branded water purifier aimed at the Korean household market.
- 1989
Company founded as Woongjin Coway
[1]The Woongjin Group established the company in South Korea, beginning the business that later became Coway.
Products and positioning
Premium environmental home appliances and managed lifestyle services
Water purifiers and water softeners · 1991
Water Care
Coway's Water Care portfolio includes countertop, freestanding, and under-sink water purifiers, together with water-softening products. The category is supported by recurring filter replacement, sanitation, inspection, troubleshooting, and rental services. It is the company's original product area and remains central to its Korean and international businesses.
Air purifiers · 1995
Air Care
Air Care consists primarily of residential air purifiers designed to manage indoor particulate matter and general air quality. Coway entered the category in 1995 and developed it into one of its principal business lines, combining appliance technology with filter-management and maintenance services.
Bidets, massage chairs, and hygiene appliances
Body Care
Body Care covers bidets, electronic toilet-related products, massage chairs, and other personal-hygiene or wellness appliances. The category extends Coway's environmental-home positioning into bathroom and body-care applications, often using the company's installation and service infrastructure.
Mattresses and sleep care
Mattress and sleep products
Coway sells mattresses and related sleep products, broadening its recurring-care model into the bedroom. The offering complements its appliance categories by emphasizing hygiene, maintenance, and managed household wellness rather than only the initial product purchase.
Controversies
2019
Woongjin Coway union protests Netmarble takeover and demands job security
In 2019, the maintenance workers' union at Woongjin Coway protested Netmarble's takeover of the company, demanding an open discussion and job security. The union also expressed concern about possible layoffs. The reported event covers the protest and the union's demands; it does not establish that layoffs occurred. The source is a Korea Times article on the backlash from the Woongjin Coway union.
2016
Nickel-leaching ice-making purifier controversy
Three ice-making purifier models were reported to release trace amounts of nickel into water. Coway recalled affected products from an estimated 87,000 customers, while some customers pursued legal claims. The episode also led to the resignation of chief executive Kim Dong-hyun.
Marketing campaigns
- 2021BTS global brand ambassador campaign
Global
Coway used BTS as a global ambassador to associate its water, air, and lifestyle products with contemporary design, technology, and international Korean culture.
Outcome. Supported Coway's international brand-building efforts.
Brand decisions
2025
Expanded shareholder-return planStrategyBackground
Activist investor Align Partners argued that Coway's shareholder returns were too conservative relative to its cash generation.
Action taken
Coway announced a higher shareholder-return target and a plan to buy back and cancel shares.
Aftermath
The announcement increased investor attention on capital allocation and governance at the company.
2020
Employment settlement with CS DoctorsStrategyBackground
Installation and repair technicians sought direct employment and job-security guarantees during the ownership transition.
Action taken
Coway reached a settlement that included converting approximately 1,500 workers to regular employees and improving welfare provisions.
Aftermath
The 47-day strike ended and technicians returned to work.
2019
Netmarble acquisitionM&ABackground
After Woongjin's short-lived return as controlling shareholder, Coway was placed into another sale process.
Action taken
Netmarble acquired the controlling stake for approximately 1.74 trillion Korean won.
Aftermath
Netmarble became Coway's largest shareholder and Coway continued as a listed operating company.
Acquisition price. Approximately KRW 1.74 trillion (2019 acquisition)
2013
Sale of controlling interest to MBK PartnersM&ABackground
Woongjin Group faced financial concerns and chose to sell its controlling stake in Coway.
Action taken
MBK Partners acquired control of the listed company.
Aftermath
Coway operated under MBK's control until Woongjin reacquired the shares in 2018.
Recent events
Reported
Coway introduces Smart Care Air Mattress[3]
Coway introduced its Smart Care Air Mattress at CES 2022, demonstrating it alongside its Smart Sleep Solution.
Reported
Coway Noble air purifiers win IDEA Bronze Award[4]
Coway Noble air purifier models AP-2021A, AP-3021D and AP-1521B won the Bronze Award in the Home category at the 2021 IDEA International Design Excellence Awards. Coway air purifier AP-1720H was named a finalist.
Reported
Coway reports second-quarter 2021 financial results[5]
Coway reported second-quarter 2021 revenue of KRW 905.4 billion, operating profit of KRW 166.4 billion, and net profit of KRW 115.8 billion.
Reported
Coway products win Red Dot and iF Design Awards[6]
Coway announced that three products won 2021 Red Dot Award: Product Design awards and that one product won the 2021 iF Design Award.
Reported
Coway begins selling Airmega 250[7]
Coway began selling its Airmega 250 air purifier for $399; replacement Max2 filters were priced at $79.
Reported
Coway names BTS global brand ambassador[8]
Coway named BTS as its global brand ambassador. The company said promotional videos featuring BTS would roll out on digital platforms later that month.
Reported
Coway drops Woongjin from its company name[9]
Coway voted at an interim shareholders meeting to remove Woongjin from its company name, becoming simply Coway.
Reported
Coway appoints new directors[9]
Coway appointed Netmarble Chairman Bang Jun-hyuk, task force leader Seo Jang-won, Coway CEO Lee Hae-sun and four outside directors at its interim shareholders meeting.
Reported
Woongjin Coway union protests Netmarble takeover and demands job security[2]
Woongjin Coway maintenance workers' union protested Netmarble's takeover, demanding an open discussion and job security. The union also expressed concern about possible layoffs; the article reports the protest and demands, not a determination that layoffs occurred.
Sources11 sources
- 1Cowayen.wikipedia.org
- 2Woongjin Coway union protests Netmarble takeover and demands job securitykoreatimes.co.kr
- 3Coway推出Smart Care Air Mattress智能床垫prnewswire.com
- 4Coway Noble空气净化器荣获IDEA铜奖prnewswire.com
- 5Coway公布2021年第二季度财务业绩us.acrofan.com
- 6Coway产品荣获红点设计奖和iF设计奖prnewswire.com
- 7Coway开始销售Airmega 250空气净化器finance.sina.com.cn
- 8Coway 任命 BTS 为全球品牌大使prnewswire.com
- 9Coway从公司名称中移除Woongjinkoreaherald.com
- 10Coway Announces Financial Results for Q3 FY2021prnewswire.com
- 11Coway Announces Financial Results for Q4 and FY2021prnewswire.com
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