Jeju Samdasoo

Jeju Samdasoo is a South Korean bottled-water brand produced under the Jeju Province Development Corporation and manufactured by Kwangdong Pharm. The brand takes its name from Jeju Island and is positioned around the island’s volcanic geology, natural water resources, and relatively soft mineral profile. Its source is located beneath Jeju Island, with the water reportedly drawn from volcanic bedrock approximately 420 metres underground before undergoing filtration, ultraviolet disinfection, filling, inspection, packaging, and shipment. The brand emerged from a broader change in South Korea’s bottled-water market. During the 1980s, the private sale of bottled water in Korea was prohibited, although Korean Air produced Jeju water for use aboard its aircraft. After bottled-water sales became possible in the 1990s, Jeju Province pursued a commercial mineral-water operation, influenced in part by the established demand for Jeju water in aviation. A development corporation was created to manage the province’s water business, and Jeju Samdasoo was launched in March 1998. Samdasoo quickly became a leading bottled-water product in South Korea. Reference material describes it as reaching the number-one position within six months of launch and maintaining market leadership for many consecutive years. It was reported to hold a 50.7 percent share of the Korean drinking-water PET-bottle market in 2009, while later descriptions identify it as the market leader for 19 consecutive years by 2017 and 20 consecutive years by 2018. These figures indicate the brand’s long-standing domestic strength, although its lead has faced pressure from newer competing water brands, including products associated with Nongshim. The brand’s operating model combines public-sector ownership of the Jeju water resource and brand operation with external manufacturing and distribution arrangements. Jeju Province Development Corporation has produced Jeju-branded mineral water, while Kwangdong Pharm has manufactured Samdasoo and, since 2012, has held the sales role previously associated with Nongshim. The standard range includes small and large PET bottles, including 0.5-litre and 2-litre formats; a 1.5-litre format has also been associated with flight sales. The water is classified as soft water because its mineral content is generally low. Reported mineral ranges include calcium at 2.5–4.0, potassium at 1.5–3.4, sodium at 4.0–7.2, and magnesium at 1.7–3.5, with fluoride not detected in the cited product information. Jeju Samdasoo has also developed an export presence in several Asian and overseas markets, including China, Japan, Indonesia, the United States, Hong Kong, and Saipan. Its production has reportedly received recurring certifications or compliance recognition connected with the U.S. Food and Drug Administration, Japan’s Ministry of Health, Labour and Welfare, NSF, and ISO 22000/HACCP food-safety systems. In addition to conventional retail sales, the brand has offered a delivery-oriented membership service. Jeju Samdasoo Club, introduced through the brand’s application in 2021, was described as providing delivery discounts, member benefits, and promotional goods. Samdasoo remains an active bottled-water brand whose identity is closely tied to Jeju’s volcanic bedrock and the province’s role in managing the resource.

Jeju Samdasoo developed from Jeju Province’s effort to commercialize the island’s groundwater and mineral-water resources after South Korea’s bottled-water market opened to private sales in the 1990s. During the 1980s, when ordinary domestic sales of bottled water were prohibited, Korean Air used water from Jeju for in-flight service. That precedent helped demonstrate the commercial value of Jeju water and contributed to the province’s later decision to enter the bottled-water business. Jeju Province established a development corporation to manage the production and commercialization of Jeju water. The resulting Samdasoo brand was launched in March 1998. Its product proposition emphasized water drawn from Jeju’s volcanic bedrock, distinguishing it from ordinary purified water through its geological origin and island provenance. The production facility is located in Gyorae-ri, Jocheon-eup, Jeju City, on Jeju Island. According to the cited reference material, the water is extracted from volcanic bedrock about 420 metres underground and processed through filtration, ultraviolet disinfection, filling, quality inspection, packaging, and shipment. Samdasoo became a major force in Korea’s bottled-water market soon after launch. It reportedly reached first place within six months and maintained the leading domestic position for many years. The available reference material gives a 50.7 percent share of the Korean drinking-water PET-bottle market for 2009 and describes the brand as the market leader for 19 consecutive years by 2017 and 20 consecutive years by 2018. Later competition from newer bottled-water products, including brands connected with Nongshim, was reported to have reduced its market share, although Samdasoo remained a leading brand. The brand’s commercial history has included changing sales partners. At launch, Jeju Province Development Corporation and Nongshim operated under a trading arrangement in which the provincial corporation produced Samdasoo and Nongshim handled sales activities. Jeju Province changed the relevant ordinance in December 2011 and notified Nongshim that the arrangement was being cancelled. Nongshim pursued legal action against Jeju Province Development Corporation. Although the sales relationship had already ended and Kwangdong Pharm became the sales partner in 2012, the dispute continued until a Supreme Court decision in June 2016. Kwangdong Pharm has been identified as Samdasoo’s manufacturer, while Jeju Province Development Corporation remains the producer and owner associated with the brand. The product range has included 0.5-litre and 2-litre bottles, with a 1.5-litre size associated with flight sales. Samdasoo is generally classified as soft water because of its relatively low mineral content. Cited mineral ranges include calcium, potassium, sodium, and magnesium at modest levels, with fluoride reported as not detected. The brand has also expanded beyond the Korean market. Export destinations identified in the reference material include China, Japan, Indonesia, the United States, Hong Kong, and Saipan. Production has reportedly received recurring certifications or recognition connected with the U.S. FDA, Japan’s Ministry of Health, Labour and Welfare, NSF, and ISO 22000/HACCP systems. In 2021, Samdasoo added a digital delivery-membership proposition through Jeju Samdasoo Club, offering delivery discounts and other customer benefits. Its continuing identity rests on Jeju’s volcanic geology, controlled provincial production, broad retail availability, and a long record of domestic market leadership.

1. 2021Jeju Samdasoo Club delivery service

   The brand introduced an application-based club associated with delivery discounts, member benefits, and promotional gifts.

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2. 2018Twenty consecutive years as market leader

   The brand was reported to have ranked first in market share for 20 consecutive years by 2018.

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3. 2017Nineteen consecutive years as market leader

   Reference material described Samdasoo as Korea's bottled-water market leader for 19 consecutive years by 2017.

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4. 2016Supreme Court decision in sales-rights dispute

   The Supreme Court issued a decision in the legal dispute between Nongshim and Jeju Province Development Corporation over Samdasoo's sales arrangement.

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5. 2012Kwangdong Pharm becomes sales partner

   Kwangdong Pharm assumed the Samdasoo sales role after Nongshim's distribution arrangement ended.

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6. 2011Jeju changes the Nongshim sales arrangement

   Jeju Province revised its ordinance and notified Nongshim that its Samdasoo sales contract would be cancelled.

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7. 2009Reported 50.7 percent PET drinking-water market share

   Reference material reported that Samdasoo held a 50.7 percent share of Korea's drinking-water PET-bottle market in 2009.

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8. 1998Jeju Samdasoo launches

   Jeju Province Development Corporation launched Jeju Samdasoo after bottled-water sales became possible in South Korea and the province entered the mineral-water market.

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9. 1998Samdasoo reaches the top of Korea's bottled-water market

   The brand was reported to have become the number-one bottled-water product in Korea within six months of its release.

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10. 1980Jeju water is used by Korean Air

    During the period when private bottled-water sales were prohibited in South Korea, Korean Air produced and used Jeju water for in-flight service.

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A mass-market yet premium-leaning natural mineral-water brand built around Jeju Island’s volcanic bedrock, public-resource provenance, low mineral content, and long-standing Korean market leadership.

• Jeju Samdasoo 0.5-litreBottled mineral water1998

  A compact PET-bottle format intended for individual consumption and portable use. It contains the brand's soft mineral water sourced from Jeju's volcanic bedrock and processed through filtration, ultraviolet disinfection, filling, inspection, and packaging.

• Jeju Samdasoo 2-litreBottled mineral water1998

  A larger household-oriented PET-bottle format for regular drinking-water use. It represents the brand's standard retail offering and carries the same Jeju volcanic-bedrock provenance and low-mineral soft-water profile as the smaller format.

• Jeju Samdasoo 1.5-litre flight-sales formatBottled mineral water

  A 1.5-litre format identified in reference material as being sold for flight-related service. Its availability is described as limited to that sales context rather than as a universally distributed retail size.

• 2021Jeju Samdasoo Club

  South Korea

  A digital delivery-membership initiative offered through the brand's application. The program was described as providing discounts for customers using delivery services, together with member benefits and promotional goods.

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• 2021Launch application-based delivery membershipStrategy

  The brand sought to support direct or delivery-oriented customer engagement in addition to conventional bottled-water distribution.

  What changed. Jeju Samdasoo Club was offered through the brand's application with delivery discounts, membership benefits, and promotional gifts.

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• 2012Appoint Kwangdong Pharm for salesStrategy

  The previous Samdasoo sales relationship with Nongshim had ended following Jeju Province's 2011 decision.

  What changed. Kwangdong Pharm became the sales partner for Jeju Samdasoo while the Jeju Province Development Corporation continued to be associated with production and ownership.

  Aftermath. Kwangdong Pharm continued to be identified as Samdasoo's manufacturer and sales partner in the cited material.

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• 2011Terminate Nongshim's Samdasoo sales arrangementStrategy

  Jeju Province Development Corporation had produced Samdasoo while Nongshim handled sales under a trading arrangement. Jeju Province revised its ordinance in December 2011 and notified Nongshim that the contract would be cancelled.

  What changed. Jeju Province ended the existing sales arrangement and subsequently moved the sales role to Kwangdong Pharm in 2012.

  Aftermath. Nongshim brought legal proceedings against Jeju Province Development Corporation. The dispute ultimately reached the Supreme Court, which issued a decision in June 2016.

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• 2021Jeju Samdasoo Club delivery membership service introduced

  The brand introduced application-based delivery benefits for customers using its delivery service. The Jeju Samdasoo Club program was described as offering discounts, member benefits, and promotional gifts.

  CampaignOther
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• 2021Jeju Samdasoo Club delivery program introduced

  The brand introduced application-based Jeju Samdasoo Club benefits, including discounts for customers using delivery services and additional member goods or gifts.

  Campaign
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• 2018Samdasoo remains South Korea's bottled-water market leader

  Reference material reports that Samdasoo held the number-one position in market share for 20 consecutive years through 2018, while noting increasing competition from newer bottled-water brands.

  Other
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• 2016Supreme Court rules in dispute involving Nongshim's Samdasoo sales rights

  The Supreme Court issued a decision in the dispute between Nongshim and Jeju Province Development Corporation concerning Samdasoo sales rights. Nongshim had already ceased handling sales, and Kwangdong Pharm had held the sales role since 2012.

  LawsuitLeadership change
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• 2016Nongshim sales-rights dispute reaches South Korean Supreme Court

  The Supreme Court issued a decision in litigation between Nongshim and the Jeju Province Development Corporation concerning the termination of Nongshim's Samdasoo sales arrangement. The decision was unfavorable to the Jeju corporation on the reported legal issue, although Nongshim's sales role had already ended.

  Lawsuit
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• 2012Kwangdong Pharmaceutical becomes Samdasoo sales partner

  Kwangdong Pharmaceutical took over sales rights for Samdasoo after the previous commercial relationship with Nongshim was discontinued.

  Other
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• 2011Nongshim's Samdasoo sales arrangement is terminated after Jeju ordinance change

  Jeju Province revised its relevant ordinance and notified Nongshim that its Samdasoo sales contract would be cancelled, triggering a dispute over the distribution arrangement.

  Lawsuit
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• 1998Jeju Samdasoo launches in South Korea

  Jeju Province entered the commercial mineral-water market and released Jeju Samdasoo after South Korea's bottled-water market became legally viable for domestic consumers.

  Product launch
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1. Jeju Samdasoo