Musim Mas
Musim Mas is an Indonesian privately owned palm-oil and vegetable-oil group with integrated processing, consumer products, logistics, and international operations.
Last updated August 25, 2026
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Overview
Musim Mas is an Indonesian privately owned group operating across the palm-oil and vegetable-oil value chain. Its origins date to 1932, when Anwar Karim established the Nam Cheong Soap Factory in Medan, North Sumatra. The business later expanded from soap manufacturing into palm-oil refining, plantations, mills, kernel crushing, oleochemicals, specialty fats, biodiesel, consumer goods, and international trading and distribution. The company commissioned its first palm-oil refinery in Belawan in 1970 and formally established PT Musim Mas in Medan in 1972. During the following decades it built an increasingly integrated operating model. It added plantation operations in North Sumatra, a kernel-crushing plant and palm-oil mill in the early 1990s, and an oleochemicals facility in 2003. This structure allows the group to process palm and palm-kernel products into food ingredients, personal-care inputs, industrial chemicals, biofuel feedstocks, and consumer products. Musim Mas operates internationally through offices, subsidiaries, processing assets, joint ventures, and distribution relationships. Reference material describes a presence in 13 countries spanning Asia-Pacific, Europe, North America, and South America. Its logistics platform includes chemical and coastal tankers, barges, tugboats, and bulk-storage installations at ports in Indonesia and elsewhere. The group also has interests outside palm oil, including real estate and the Mikie Holiday Resorts in Berastagi, North Sumatra. Its product portfolio includes refined and specialty palm oils, cooking oils, margarine and shortening, fatty acids, fatty alcohols, esters, emulsifiers, surfactants, glycerine, soap noodles, palm wax, medium-chain triglycerides, vitamin E, biodiesel, and other industrial or food ingredients. In Indonesia, the company markets branded household and personal-care products, including Lervia, Medicare, and Harmony soaps, as well as cooking-oil and specialty-food brands such as Sunco, Surya Gold, Margareta, Rajni Gold, and Kevolve Dr MCT. Sustainability has become a central part of Musim Mas's corporate positioning. The group introduced a policy in 2014 expressing a commitment to deforestation-free palm oil. It has reported methane-capture and biogas systems at its mills, with captured methane used to generate energy. The company achieved Roundtable on Sustainable Palm Oil certification in 2004, later obtained Palm Oil Innovation Group verification, and participated in programs intended to improve traceability and support independent smallholders. In 2021, Musim Mas partnered with AAK and Nestlé on an Aceh initiative designed to engage approximately 1,000 independent oil-palm smallholders through a smallholder-support hub. Musim Mas remains privately owned and is managed by the Karim brothers Bachtiar Karim, Bahari Karim, and Burhan Karim. Its public profile has also been shaped by legal and governance controversy. In 2022, the company and senior personnel were implicated in Indonesia's cooking-oil export-permit corruption case. A Jakarta court acquitted the companies in 2025, but the acquittal was subsequently associated with a separate alleged bribery scheme involving legal representatives and court officials. Indonesia's Supreme Court later overturned the acquittals and convicted the companies, according to the supplied reference material. These developments make regulatory compliance and supply-chain governance important aspects of the group's current reputation.
History
Musim Mas traces its origins to the Nam Cheong Soap Factory, founded by Anwar Karim in Medan, North Sumatra, in 1932. The enterprise initially operated as a soap manufacturer, but later developed into a vertically integrated palm-oil group. This transition reflected the growing importance of palm oil in Indonesian food, household, personal-care, and industrial markets. A major early turning point came in 1970, when the company commissioned its first palm-oil refinery in Belawan. PT Musim Mas was formally established in Tanjung Mulia, Medan, in 1972. The refinery gave the business a platform for producing refined vegetable oils and for expanding beyond traditional soap manufacturing. Musim Mas moved upstream in 1988 by beginning plantation operations in Rantau Prapat, North Sumatra. It established a kernel-crushing plant in Medan in 1990 and opened its first palm-oil mill in Rantau Prapat in 1991. These investments strengthened the group's control over the flow of palm fruit, crude palm oil, palm kernels, and processed derivatives. The group began building an international commercial network in 2002, when it established Inter-Continental Oil and Fats Pte. Ltd. in Malaysia. The subsidiary was used to merchandise and distribute Musim Mas products. In 2003, the company started operating an oleochemicals plant in Medan Industrial Area II. Oleochemicals broadened the group's customer base into soaps, detergents, cosmetics, food ingredients, and industrial applications. Musim Mas became the first company in Indonesia to achieve Roundtable on Sustainable Palm Oil certification in 2004, according to the supplied reference material. It subsequently expanded its international presence by opening a European office in 2007, a United States office in 2008, and an office in Vietnam in 2013. The company continued to expand its processing footprint during the 2010s. In 2014 it inaugurated three biodiesel plants in Europe and opened its first refinery in Tanjung Langsat, Malaysia. The same year, Musim Mas introduced a sustainability policy centered on deforestation-free palm-oil production. In 2016 it acquired Dutch Glycerin Refinery in Groningen, giving the group additional refining capacity for glycerine. In 2017 it formed a joint venture with Genting Plantations to establish a refinery in Lahad Datu, Malaysia, and acquired a sulfation plant in Barbastro, Spain. Research and innovation became more visible in 2019, when Musim Mas launched the Novel IDEAS Center in Singapore. The group also reported achieving Palm Oil Innovation Group verification in 2019, while one of its processing mills obtained certification under the RSPO 2018 Principles and Criteria. Its sustainability activities have included methane capture at mills, use of biogas for energy, traceability work, and engagement with independent smallholders. In 2021, Musim Mas partnered with AAK and Nestlé on an initiative in Aceh, Indonesia. The program sought to address deforestation risks beyond plantation concessions and engage approximately 1,000 independent smallholders through the company's smallholder program and a Smallholders Hub. The group faced significant legal scrutiny in 2022 during Indonesia's cooking-oil shortage. Prosecutors alleged that Musim Mas and other palm-oil companies obtained export approvals without satisfying domestic-market obligations. Togar Sitanggang, identified as a Musim Mas general manager, was named a suspect. A Jakarta court acquitted the companies in March 2025, but allegations of a separate bribery scheme involving lawyers and court officials followed. The supplied material states that Indonesia's Supreme Court overturned the acquittals and convicted the companies in September 2025. The case remains an important part of Musim Mas's public record because it connects the company with questions about export regulation, domestic supply, and corporate governance. Musim Mas is privately owned and managed by the Karim brothers: Bachtiar Karim, Bahari Karim, and Burhan Karim. In addition to palm-oil plantations, mills, refineries, oleochemical and biodiesel facilities, and global logistics, the group has interests in real estate and owns the four-star Mikie Holiday Resorts in Berastagi, North Sumatra.
- 2021
Aceh smallholder partnership
[1]Musim Mas partnered with AAK and Nestlé on a program addressing deforestation risks and supporting independent smallholders in Aceh.
- 2019
Novel IDEAS Center launched
[1]Musim Mas opened the Novel IDEAS research and innovation center in Singapore and attained POIG verification.
- 2017
Malaysian joint venture and Spanish acquisition
[1]The group formed a refinery joint venture with Genting Plantations in Lahad Datu and acquired a sulfation plant in Barbastro, Spain.
- 2016
Dutch Glycerin Refinery acquired
[1]Musim Mas acquired Dutch Glycerin Refinery in Groningen, the Netherlands.
- 2014
European biodiesel plants and Malaysian refinery
[1]The group inaugurated three biodiesel plants in Europe and its first refinery in Tanjung Langsat, Malaysia, and introduced a deforestation-free palm-oil policy.
- 2008
United States office opened
[1]Musim Mas established its first office in the United States.
- 2007
European office opened
[1]The company opened its first office in Europe.
- 2004
RSPO certification achieved
[1]Musim Mas became the first company in Indonesia to achieve Roundtable on Sustainable Palm Oil certification.
- 2003
Oleochemicals operations begin
[1]The group commenced operations at an oleochemicals plant in Medan Industrial Area II.
- 2002
First subsidiary office established
[1]Musim Mas established Inter-Continental Oil and Fats Pte. Ltd. in Malaysia to merchandise and distribute group products.
Products and positioning
An integrated, privately owned palm-oil and vegetable-oil producer combining upstream plantations and mills with refining, oleochemicals, specialty ingredients, consumer goods, logistics, and sustainability programs.
Cooking oil
Sunco
An Indonesian consumer cooking-oil brand in Musim Mas's portfolio. It represents the group's downstream presence in packaged household food products, alongside other cooking oils and food fats.
Soap and personal care
Lervia
A Musim Mas soap brand sold in Indonesia. It sits within the group's household and personal-care portfolio, which is supplied by its broader soap, oleochemical, and palm-derived ingredient operations.
Soap and hygiene
Medicare
A branded soap and hygiene offering associated with Musim Mas's Indonesian consumer-products business.
Soap and personal care
Harmony
An Indonesian soap brand in the Musim Mas portfolio, reflecting the group's longstanding connection to soap manufacturing and oleochemical ingredients.
Cooking oil
Surya Gold
A cooking-oil brand identified among Musim Mas's branded products. It is part of the group's downstream food and household offering.
Cooking oil
Margareta
A cooking-oil brand associated with Musim Mas's consumer-goods activities in Indonesia.
Cooking oil
Rajni Gold
A Musim Mas cooking-oil brand included in the group's portfolio of packaged edible oils.
Specialty nutritional oil
Kevolve Dr MCT
A specialty product based on medium-chain triglycerides. It illustrates Musim Mas's move beyond bulk palm products into more specialized nutritional and functional-oil applications.
Industrial ingredients · 2003
Oleochemicals
Musim Mas manufactures fatty acids, fatty alcohols, esters, emulsifiers, surfactants, glycerine, soap noodles, and related derivatives used in food, cosmetics, detergents, personal care, and industrial formulations.
Biofuel · 2014
Biodiesel
The group operates biodiesel production assets, including three plants in Europe inaugurated in 2014. The business converts palm-based feedstocks into renewable-fuel products for energy and transport applications.
Controversies
2026
Waste-salt disposal allegations involving Dutch subsidiary
Dutch Glycerin Refinery was accused of disposing of tens of thousands of tons of waste salt through a network that allegedly misrepresented it as a soil improver. The supplied material does not establish a final legal outcome.
2025
Acquittal and alleged judicial bribery controversy
After a Jakarta court acquitted Musim Mas and other companies, the ruling became linked in the supplied material to allegations that lawyers paid judges and court officials to obtain a favorable result. The allegations led to arrests and further proceedings.
2025
Supreme Court reversal
The supplied reference states that Indonesia's Supreme Court later granted the prosecution appeal, overturned the acquittals, and convicted Musim Mas and the other named companies.
2022
Cooking-oil export-permit corruption case
Prosecutors alleged that Musim Mas and other palm-oil companies obtained crude palm-oil export approvals without fulfilling Indonesia's domestic-market obligation during a nationwide cooking-oil shortage. General manager Togar Sitanggang was named as a suspect.
Marketing campaigns
- 2021Aceh independent-smallholder program
Indonesia
Musim Mas worked with AAK and Nestlé on an Aceh program intended to address deforestation outside plantation concessions and enroll approximately 1,000 independent oil-palm smallholders in a supported program.
Outcome. The initiative used a Smallholders Hub and was intended to improve farmer engagement, supply-chain traceability, and responsible production practices.
- 2014Deforestation-free palm-oil policy
Indonesia · Global supply chain
Musim Mas introduced a sustainability policy stating its commitment to producing deforestation-free palm oil and improving environmental controls across its operations and supply chain.
Outcome. The policy became a foundation for subsequent traceability, methane-capture, certification, and smallholder-support activities.
Brand decisions
2019
Launch of the Novel IDEAS CenterStrategyBackground
The group sought to develop new applications and improve innovation capabilities in palm-derived ingredients and related products.
Action taken
Musim Mas opened the Novel IDEAS research and innovation facility in Singapore.
Aftermath
The center became part of the group's research and product-development infrastructure.
2014
Adoption of a deforestation-free palm-oil policyStrategyBackground
Environmental concerns surrounding palm-oil expansion increased pressure on producers to address forest conversion and supply-chain responsibility.
Action taken
Musim Mas introduced a policy expressing a commitment to deforestation-free palm-oil production.
Aftermath
The policy was followed by further certification, methane-capture, traceability, and smallholder-support initiatives.
Sources1 sources
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