Ledesma S.A.A.I.

Ledesma S.A.A.I. is an Argentine diversified agribusiness and manufacturing company whose historical base is the cultivation and processing of sugar cane in Jujuy Province. Its operations extend beyond refined sugar into cellulose and paper, alcohol and bioethanol, food ingredients derived from corn, citrus production and concentrates, cattle and grain farming, and selected energy and fossil-fuel activities. The company is associated with the Ledesma industrial complex in Libertador General San Martín, where its integrated operations include plantations, sugar and paper mills, fruit facilities, alcohol production, electricity generation, roads, and irrigation infrastructure. The business traces its origins to sugar-cane fields established in the San Francisco River valley in 1830. A steam-powered mill was created in 1876, and the enterprise was incorporated as Ingenio Ledesma in 1889 before becoming Compañía Azucarera Ledesma in 1908. Under Enrique Wollmann and Carlos Delcasse, who acquired the company in 1911, production capacity and technology were expanded. Herminio Arrieta, president from 1927, further enlarged the sugar operation and promoted vertical integration by establishing cellulose and paper production based on sugar-cane fiber. The company adopted its current corporate name in 1956. Its diversification accelerated under Carlos Pedro Blaquier, who became president in 1970. During his tenure, Ledesma added cattle and cereal production through large agricultural estates, acquired Glucovil in San Luis for corn wet milling, expanded into citrus orchards and fruit concentrates, entered school supplies, and participated in oil and gas production. A bioethanol facility opened in 2010, reinforcing the company's effort to use agricultural feedstocks across food, energy, and industrial applications. Ledesma remains a vertically integrated Argentine producer. Its principal operations include sugar cane, sugar, molasses, alcohol, bioethanol, cellulose, paper, notebooks and other school supplies, milled corn products, citrus fruit and concentrates, beef, cereals, and electricity generated partly from its industrial activities. The company has also maintained a substantial physical infrastructure in northern Argentina, including plantations, orchards, irrigation canals, internal roads, processing plants, and power-generation capacity. Its products serve domestic Argentine markets and are also exported. Ledesma's history is also marked by serious controversy. During Argentina's 1976 military dictatorship, company facilities and vehicles were linked in accounts of mass arrests and disappearances during the so-called Night of the Blackout in Jujuy. In 2011, a land occupation involving impoverished families on property claimed by the company led to a violent eviction in which four people died; the provincial legislature subsequently expropriated additional land. These events remain central to public debate about the company's social and political legacy.

Ledesma's roots lie in the San Francisco River valley of Jujuy Province, where José Ramírez Ovejero González established sugar-cane fields in 1830. The region was then a remote agricultural area, but its climate and river-valley setting supported the development of a sugar economy. In 1876, Ovejero's heirs established a sugar mill powered by steam. The enterprise was known as Ovejero Hermanos and was incorporated as Ingenio Ledesma in 1889. It became Compañía Azucarera Ledesma in 1908, the corporate milestone generally associated with the formal foundation of the modern company. Enrique Wollmann and Carlos Delcasse acquired the business in 1911 and invested in production technology and capacity. Herminio Arrieta, who became president in 1927, expanded the company's land under cultivation and added two mills. He also pursued industrial integration: rather than treating sugar cane only as a source of sugar, Ledesma began using its fiber, or bagasse, as an input for cellulose and paper. This helped create the foundation for the company's later combination of agricultural production, food processing, and industrial materials. Ledesma was reincorporated under its present name in 1956. A major strategic shift occurred in 1970 when Carlos Pedro Blaquier became president. Under his leadership, the company developed into a diversified group. It acquired or developed agricultural estates in Buenos Aires and Entre Ríos Provinces, including La Biznaga, La Bellaca, Magdala, and Centella, and added beef and cereal production. In 1982, it acquired Glucovil in Villa Mercedes, San Luis, creating a platform for corn wet milling and the production of ethanol, starch, and corn syrup. Ledesma subsequently expanded citrus cultivation in Jujuy and Salta and established a fruit-concentrate facility in 1990. A school-supplies manufacturing operation was added in Villa Mercedes in 1994. The group also participated in oil and gas through UTE Aguaragüe. The company's twentieth-century history is inseparable from Argentina's political violence. In July 1976, during the military dictatorship, two blackouts in the Ledesma area preceded security operations in which company vehicles were reportedly used to transport detainees. Accounts have connected the operations with the detention and disappearance of approximately 300 to 400 people, including political activists and unionists. Fifty-five of those people were reported as still missing in the source account. The allegations became known as part of the Night of the Blackout and have generated continuing legal, historical, and human-rights scrutiny. Alejandro Blaquier succeeded his father in 2007. In 2010, Ledesma inaugurated a bioethanol plant, extending its sugar-based value chain into renewable fuel. In 2011, the company became the focus of another major controversy after roughly 700 impoverished families occupied approximately 15 hectares of company land in Jujuy. The eviction in August turned violent and caused four deaths. The provincial legislature subsequently expropriated 40 hectares of the company's land, making the episode a significant dispute over land access, housing, corporate property, and state intervention. Today, Ledesma is an integrated Argentine agribusiness and manufacturing enterprise. Its Jujuy complex includes sugar-cane plantations, sugar, cellulose, and paper mills, fruit orchards and packing facilities, alcohol and bioethanol production, and electricity generation. Its San Luis operations include corn processing and school supplies, while its Pampas estates support cattle and grain production. The group also operates citrus assets in Salta and maintains extensive roads and irrigation infrastructure. Its portfolio reflects a strategy of processing agricultural commodities into food, chemicals, paper, energy, and consumer products while retaining substantial control over cultivation and logistics.

• 2011

  Jujuy land dispute turns deadly

  [1]Ledesma S.A.A.I.en.wikipedia.org

  A disputed occupation and eviction on company land led to four deaths and subsequent provincial expropriation of additional land.

• 2010

  Bioethanol plant inaugurated

  [1]Ledesma S.A.A.I.en.wikipedia.org

  Ledesma opened a bioethanol plant, strengthening its sugar-to-energy value chain.

• 2007

  Alejandro Blaquier succeeds Carlos Pedro Blaquier

  [1]Ledesma S.A.A.I.en.wikipedia.org

  Alejandro Blaquier became the company's president after succeeding his father.

• 1994

  School-supplies manufacturing added

  [1]Ledesma S.A.A.I.en.wikipedia.org

  Ledesma expanded into the manufacture of notebooks, writing paper, and other school supplies in Villa Mercedes.

• 1990

  Citrus concentrate facility established

  [1]Ledesma S.A.A.I.en.wikipedia.org

  The company established a facility for processing citrus fruit into concentrates.

• 1982

  Glucovil acquired

  [1]Ledesma S.A.A.I.en.wikipedia.org

  Ledesma acquired Glucovil in Villa Mercedes, expanding into corn wet milling and related food and industrial ingredients.

• 1970

  Carlos Pedro Blaquier becomes president

  [1]Ledesma S.A.A.I.en.wikipedia.org

  Blaquier began a period of extensive diversification into agriculture, corn processing, citrus, school supplies, and energy.

• 1956

  Current corporate name adopted

  [1]Ledesma S.A.A.I.en.wikipedia.org

  The company was reincorporated under the name Ledesma S.A.A.I.

• 1927

  Herminio Arrieta becomes president

  [1]Ledesma S.A.A.I.en.wikipedia.org

  Arrieta expanded cultivation, added mills, and encouraged the development of cellulose and paper production from sugar-cane fiber.

• 1911

  Wollmann and Delcasse acquire the company

  [1]Ledesma S.A.A.I.en.wikipedia.org

  Enrique Wollmann and Carlos Delcasse purchased the company and invested in technology and production capacity.

• 1908

  Compañía Azucarera Ledesma incorporated

  [1]Ledesma S.A.A.I.en.wikipedia.org

  The business adopted the corporate name Compañía Azucarera Ledesma.

• 1889

  Incorporated as Ingenio Ledesma

  [1]Ledesma S.A.A.I.en.wikipedia.org

  The enterprise was formally incorporated under the name Ingenio Ledesma.

• 1876

  Steam-powered sugar mill established

  [1]Ledesma S.A.A.I.en.wikipedia.org

  The heirs of the original agricultural operator established a sugar mill powered by a steam engine.

• 1830

  First sugar-cane fields established

  [1]Ledesma S.A.A.I.en.wikipedia.org

  José Ramírez Ovejero González planted the first sugar-cane fields associated with the future Ledesma enterprise in Jujuy's San Francisco River valley.

Vertically integrated Argentine agribusiness and industrial group

• Food processing

  Sugar

  Sugar is Ledesma's historical core product and remains central to its integrated Jujuy operations. The company cultivates and processes sugar cane, producing refined sugar and related cane-derived outputs. Sugar production is connected to the group's alcohol, bioethanol, bagasse-based cellulose, paper, and energy activities, allowing multiple industrial uses for the crop and its by-products.

• Industrial materials

  Cellulose and paper

  Ledesma manufactures cellulose and paper using sugar-cane fiber as an important feedstock. The paper business serves both industrial and consumer applications and supports the company's notebook, writing-paper, and school-supplies lines. This operation illustrates Ledesma's vertical integration of agricultural residues into higher-value materials.

• Biofuels and chemicals · 2010

  Alcohol and bioethanol

  The company produces alcohol and bioethanol from agricultural feedstocks associated with its sugar operations. Its bioethanol plant, inaugurated in 2010, expanded Ledesma's role in renewable fuels and created an additional outlet for sugar-cane processing beyond food products.

• Food ingredients · 1982

  Corn-based ingredients

  Through Glucovil in Villa Mercedes, Ledesma produces milled corn products for food processing. The operation includes corn starch, corn syrup, ethanol, and other outputs associated with wet milling, serving industrial customers that use corn derivatives in food and related applications.

• Agricultural products · 1990

  Citrus products

  Ledesma cultivates citrus fruit in Jujuy and Salta and operates packing and concentrate facilities. The citrus business combines orchard production with processing, enabling the company to supply fresh fruit as well as concentrated products for downstream food and beverage uses.

• Paper products · 1994

  School supplies

  The company manufactures notebooks, writing paper, and other school supplies in Villa Mercedes. These consumer products extend Ledesma's paper business beyond commodity and industrial grades into branded finished goods used in education and office contexts.

• Agriculture

  Beef and cereals

  Ledesma's agricultural estates in the Pampas produce beef and cereals, particularly maize. These assets form part of the diversification undertaken under Carlos Pedro Blaquier and complement the company's northern agricultural and processing operations.

• 2011

  Jujuy land occupation and eviction

  An occupation of approximately 15 hectares of company land by around 700 indigent families ended in a violent eviction in August. Four people died, and the provincial legislature later expropriated 40 hectares of Ledesma's land.

  Source

• 1976

  Night of the Blackout

  During Argentina's military dictatorship, two July blackouts in the Ledesma area were followed by security operations against political activists, unionists, and other civilians. The source account states that company vehicles were used in the operations and that approximately 300 to 400 people were kidnapped, with 55 still missing.

  Source

Read more

• 2010

  Launch bioethanol productionProduct launch

  Background

  The company aimed to extend its sugar-cane value chain into renewable energy.

  Action taken

  Ledesma inaugurated a bioethanol plant.

  Aftermath

  Bioethanol became an additional business connected to the group's sugar and alcohol operations.

  Source

• 1982

  Acquire Glucovil and enter corn wet millingM&A

  Background

  Ledesma's diversification strategy extended from sugar and paper into food ingredients and industrial processing.

  Action taken

  The company acquired Glucovil Argentina in Villa Mercedes, San Luis.

  Aftermath

  Ledesma added corn starch, corn syrup, ethanol, and other milled-corn products to its portfolio.

  Source

• 1927

  Integrate sugar production with cellulose and paperStrategy

  Background

  The company sought to expand the value obtained from sugar cane and its by-products.

  Action taken

  Under Herminio Arrieta, Ledesma established cellulose and paper production using sugar-cane fiber.

  Aftermath

  The move created a long-term industrial materials business alongside sugar production.

  Source

1. 1Ledesma S.A.A.I.en.wikipedia.org