SOSUMO
SOSUMO is Burundi's principal sugar-growing and sugar-refining company, operating in the Moso region of southeastern Burundi.
Last updated November 4, 2026
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Overview
SOSUMO, short for Société Sucrière du Moso, is a Burundian agricultural and food-processing company focused on cultivating sugar cane and refining sugar. Its operations are based in Rutana Province in the Moso natural region of southeastern Burundi, an area supplied by the Muyovozi, Mutsindozi and Maragarazi rivers. The company's industrial complex is supplied primarily by the Mutsindozi River and is located near Gihofi in the Commune of Bukemba. The idea for a sugar project in Moso emerged during Burundi's third five-year plan for economic and social development in the early 1970s. The project was intended to stimulate economic activity in the southeast, create employment and reduce the country's dependence on imported sugar and the foreign currency required to purchase it. SOSUMO was formally established on 13 July 1982 as a private-law mixed-economy company organized as a limited-liability entity. At formation, the State of Burundi held the overwhelming majority of shares, while Brasseries et Limonaderies du Burundi and the Société Burundaise de Financement each held a small minority position. The company received a concession of approximately 5,800 hectares, although around half of the concession consisted of marshland. Construction of the complex was assigned in 1986 to the Dutch company HVA, with civil engineering and factory construction subcontracted to the German company Krupp. The project created more than an industrial site. SOSUMO developed housing for employees across different occupational grades, while surrounding private neighborhoods grew into an urban center containing a hospital, airfield, banks and other public and commercial institutions. The company consequently became an important institution in the settlement and economic development of the region. Initial production in 1988 was approximately 4,000 tonnes of sugar from about 1,149 hectares of cane. The company experienced difficulties in establishing full industrial operations between 1988 and 1991 and operated at a loss during that period. It also had to function through Burundi's prolonged sociopolitical crisis from 1993 to 2005. Despite those constraints, production gradually increased. In later years SOSUMO commonly produced around 20,000 tonnes annually, including approximately 5,000 tonnes for export. Production reached about 23,000 tonnes in 2015, while cultivated cane area expanded to approximately 3,880 hectares by 2023. SOSUMO plays a strategic role in Burundi's sugar supply. Its output has often been below domestic demand: around 2018, annual production was reported at approximately 23,000 tonnes against demand of roughly 35,000 tonnes. The resulting gap has required imports, particularly during periods before and immediately after the harvest. Because the government controls or influences sugar pricing, imported sugar may be sold at a loss when it enters the market at the same regulated price as locally produced sugar. SOSUMO distributes through warehouses including Gihofi, Ruvumera market in Bujumbura, Ngozi and Gitega, with provincial allocations divided among wholesalers and other institutional purchasers. The company's business has been constrained by aging agricultural and factory equipment, limited capital and recurring input and maintenance problems. In 2019, SOSUMO validated an agronomic study recommending new cultivation methods and fertilizer practices, ending a production system that had reportedly remained substantially unchanged for three decades. It agreed to use organic fertilizer produced by FOMI as part of an effort to reduce costs and foreign-currency requirements. Expansion plans announced in 2022 targeted an additional 526 hectares in Rutana and Makamba provinces and aimed to raise annual sugar production toward 35,000 tonnes. Factory modernization, boiler repairs and the acquisition of new processing equipment were also under consideration. The company remains closely connected to the Burundian state. It was supervised by the Ministry of Trade until October 2020 and subsequently came under the Ministry of Agriculture. A 2016 government steering committee was created to audit and revitalize the enterprise. In 2018, Parliament approved a restructuring framework that would allow private investors to acquire 53.68 percent of the share capital for US$20 million, while the government retained authority over sugar prices. A proposed partnership with Uganda's Sarrai Group was promoted by Burundi's president in late 2023 as a possible route to major expansion, but as of April 2024 the parties were still assessing SOSUMO's assets and negotiating the terms. SOSUMO's current position is therefore that of an active, strategically important national sugar company seeking to increase cane acreage, repair and modernize its factory, improve agricultural inputs and attract private capital. Its performance affects domestic sugar availability, rural employment, regional development and Burundi's import requirements.
History
SOSUMO was conceived as part of Burundi's development planning for the Moso region. The country's third five-year plan for economic and social development, prepared in the early 1970s, included a proposed sugar project intended to diversify the economy of southeastern Burundi and reduce foreign-currency expenditure on imported sugar. The project also promised a large industrial employer in a comparatively underdeveloped region. The Société Sucrière du Moso was created on 13 July 1982 as a private-law mixed-economy company. The State of Burundi held 21,250 shares at formation, while Brasseries et Limonaderies du Burundi and the Société Burundaise de Financement each held 100 shares. SOSUMO received a concession of approximately 5,800 hectares in Rutana Province. Much of the concession was marshland, creating agricultural and engineering challenges from the beginning. In 1986, the Dutch company HVA was assigned responsibility for construction of the SOSUMO complex. German company Krupp handled subcontracted civil engineering and factory construction. The project generated a new settlement pattern around the industrial site. SOSUMO built housing organized by employee category, from directors and senior managers to technicians and ordinary workers. Private housing and public services subsequently developed nearby, including a hospital, airfield, banks and other institutions. The complex became the nucleus of Gihofi and an important source of seasonal and permanent employment. SOSUMO began production in 1988, producing approximately 4,000 tonnes of sugar from 1,149 hectares of planted cane. The early industrial period was difficult: the company struggled to reach stable operations between 1988 and 1991 and incurred losses. Burundi's political and social crisis from 1993 through 2005 added further difficulties. Nevertheless, the enterprise continued operating and gradually raised production. In subsequent years, typical output reached around 20,000 tonnes annually, with a portion exported. Production was reported at approximately 23,000 tonnes in 2015, and the planted area eventually expanded to roughly 3,880 hectares by 2023. The company's strategic purpose has always been closely linked to domestic supply. Burundi's consumption exceeded SOSUMO's production capacity, leaving a recurring requirement for imports. Around 2018, demand was estimated at 35,000 tonnes against production of approximately 23,000 tonnes. Seasonal shortages commonly appeared before and shortly after harvest. During these periods SOSUMO imported sugar but could face losses because imported and local sugar were sold under the same price framework. Its distribution network included warehouses in Gihofi, Bujumbura, Ngozi and Gitega, with provincial allocations and wholesaler quotas intended to manage scarce supply. SOSUMO's agricultural and industrial base has also required rehabilitation. A government decree in September 2016 created a steering committee to audit and revitalize the company. The committee's work reflected concerns that SOSUMO lacked sufficient capital to renew machinery, rehabilitate factory equipment and expand its plantations. In November 2018, Parliament approved a change in the management structure that would enable private investors to acquire 53.68 percent of the company's share capital for US$20 million. The state was to retain the power to set sugar prices. Agronomic reform became another focus. In December 2019, SOSUMO validated a study by experts from the Institute of Agronomic Sciences of Burundi. The study recommended improved production techniques and new fertilizer practices, noting that the existing system had remained largely unchanged for about thirty years. SOSUMO agreed to use organic fertilizer made by FOMI, partly to reduce production costs and dependence on imported inputs. By 2021, the company employed approximately 570 contract workers and nearly 3,000 seasonal workers. Expansion proposals in 2022 targeted 526 additional hectares in Rutana and Makamba provinces, with a stated goal of raising annual sugar output to 35,000 tonnes. The expansion also required factory investment. SOSUMO planned repairs to boilers after the 2022 campaign and sought financing for modern processing equipment. In March 2023, a proposal to expropriate rice farmers in several marshes in Giharo Commune and transfer the land to SOSUMO for cane production was subsequently suspended, illustrating the land-use tensions associated with expansion. Operational difficulties continued into 2023 and 2024. The factory closed in December 2023 while a large share of harvested cane awaited processing. Because cane must be processed within roughly a year, delays threatened the usable value of the crop. In April 2024, the managing director told workers that an Indian contractor expected to repair a broken boiler, turbo-alternator and centrifuge had been slow to arrive, delaying the production campaign. Reports also described shortages of herbicides and low stocks of chemical fertilizer. Ownership and governance remained matters of national policy. SOSUMO reported to the Ministry of Trade until October 2020, after which responsibility moved to the Ministry of Agriculture. In December 2023, Burundi's president promoted a potential partnership with Uganda's Sarrai Group, suggesting that outside capital and Burundian cane production could produce a substantial increase in output. By April 2024, however, the arrangement had not been finalized; SOSUMO and the prospective partner were still assessing assets and negotiating terms. The company's history therefore reflects the continuing effort to balance state ownership, private investment, domestic sugar security, agricultural modernization and the economic development of southeastern Burundi.
- 2024
Factory repair delays production campaign
[1]Delayed repairs to key factory equipment postponed the start of sugar processing while harvested cane awaited treatment.
- 2023
Proposed land transfer for cane cultivation is suspended
[1]A plan to transfer marshland farmed by rice growers to SOSUMO was later suspended.
- 2023
Sarrai Group partnership is proposed
[1]Burundi's president promoted a potential partnership with Uganda's Sarrai Group to provide capital and expand SOSUMO's production.
- 2022
Expansion and modernization plans advance
[1]SOSUMO pursued additional cane fields and planned factory modernization aimed at increasing annual production.
- 2020
Administrative supervision moves to Agriculture Ministry
[1]Responsibility for SOSUMO moved from the Ministry of Trade to the Ministry of Agriculture.
- 2019
Agricultural production methods reviewed
[1]SOSUMO validated an ISABU study recommending new cultivation techniques and fertilizer practices.
- 2018
Parliament approves private-investment framework
[1]Parliament voted to change the management structure and permit private investors to acquire 53.68 percent of SOSUMO's share capital.
- 2016
Government creates revitalization steering committee
[1]A government decree established a committee to audit SOSUMO and develop measures to rehabilitate and revitalize the company.
- 1988
First sugar production
[1]SOSUMO produced approximately 4,000 tonnes of sugar from about 1,149 hectares of planted cane.
- 1986
Industrial complex construction begins
[1]Dutch company HVA received the construction assignment, with Krupp undertaking subcontracted civil engineering and factory work.
Products and positioning
A strategic national agribusiness and sugar-processing enterprise positioned around domestic food supply, import substitution, rural development and regional employment.
Food ingredient and sweetener · 1988
Refined cane sugar
SOSUMO's principal finished product is refined sugar made from cane cultivated in the Moso region. It is distributed through Burundian warehouses and supplied to wholesalers, retailers, public institutions and other bulk purchasers. Domestic production is strategically important because it covers only part of national demand, requiring imports during seasonal or structural shortfalls.
Agricultural crop · 1988
Sugar cane
Sugar cane is SOSUMO's core agricultural input and is cultivated on company-managed plantations in and around Rutana Province, with expansion plans also involving Makamba Province. Cane must be delivered to the factory within a limited period after harvest to preserve its processing value, making plantation access, transport and factory reliability central to the business.
Brand decisions
2023
Explore partnership with Sarrai GroupM&ABackground
Burundi sought external capital and technical or operational support to expand SOSUMO's plantations and production capacity.
Action taken
The president invited Uganda's Sarrai Group to become a partner, with Burundi expected to provide cane plantations and Sarrai expected to provide other capital.
Aftermath
By April 2024, the proposed partnership had not started. The parties were still assessing SOSUMO's assets and negotiating terms.
2022
Plan plantation expansion and factory modernizationGeneration changeBackground
SOSUMO's production capacity remained below domestic demand, and existing factory and agricultural equipment required rehabilitation.
Action taken
The company pursued approximately 526 additional hectares in Rutana and Makamba provinces and considered expanded, modernized factory equipment, including boiler repairs.
Aftermath
The proposed expansion targeted annual output of about 35,000 tonnes, but equipment failures and delayed repairs continued to disrupt production.
2019
Adopt revised fertilizer and cultivation approachStrategyBackground
An ISABU study found that SOSUMO's agricultural system had remained substantially unchanged for about three decades and recommended new production techniques.
Action taken
SOSUMO accepted the study's recommendations and agreed to use organic fertilizer produced by FOMI, with the stated aim of improving output and reducing costs and foreign-currency dependence.
Aftermath
The decision represented an effort to modernize cane cultivation, although later reports continued to identify shortages of fertilizer and herbicides.
2018
Approve private-investment restructuringStrategyBackground
SOSUMO required capital to rehabilitate agricultural machinery, factory equipment and cane plantations, while production remained below national demand.
Action taken
Burundi's Parliament approved a management restructuring that would allow private investors to acquire 53.68 percent of the share capital. The state was to retain authority over sugar prices.
Aftermath
The measure created a framework for private participation, but later partnership discussions show that the company's ownership and investment needs remained unresolved.
Proposed private-investor share acquisition. 53.68% of share capital (2018)
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