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State-controlled Congolese mining and commodity-trading company focused on copper, cobalt and other minerals.

Last updated August 26, 2026

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Overview

Gécamines, formally La Générale des Carrières et des Mines, is a state-controlled mining and commodity-trading company of the Democratic Republic of the Congo. Headquartered in Lubumbashi, it operates in the copper- and cobalt-rich former Katanga region and remains one of the most important mineral institutions in the country. Its activities include mineral exploration, geological research, mine development, extraction, processing, production and participation in joint ventures with international mining and trading companies. The company is the successor to the Union Minière du Haut-Katanga (UMHK), a Belgian-backed enterprise established in 1906 to develop mineral deposits in southern Katanga. UMHK began copper production in 1911 and became a major industrial and financial force in the Belgian Congo. After independence, tensions grew between the Congolese government and UMHK over taxation, control of mineral exports and the location of corporate authority. In late 1966 and early 1967, the government took control of the Congolese mining operations and created Générale Congolaise des Minérais, commonly known as Gecomin. The company was renamed Gécamines in 1971. During the 1970s and 1980s, Gécamines was the central pillar of the Congolese economy. At its peak it produced roughly 500,000 tonnes of copper annually and generated a large share of national export earnings and public revenue. Its performance later deteriorated because of falling copper prices, aging infrastructure, operational disruption, political interference, conflict, underinvestment and the closure of important facilities including the Kamoto mine in 1990. The company underwent workforce reductions and management reforms supported by the World Bank, while the postwar mining reforms of 2002 and 2003 opened the Congolese sector to greater foreign participation. Since becoming a commercial company under private law in 2010, Gécamines has pursued a strategy centered on modernization, selective control of strategic assets and joint ventures. Its partners have included Glencore, Freeport-McMoRan, Eurasian Natural Resources Corporation and China Nonferrous Metal Mining Group. The Deziwa copper-cobalt project, developed with the Chinese group, became a prominent example of the company's effort to secure arrangements in which an international partner finances and operates processing capacity while Gécamines retains a strategic interest. Gécamines' importance extends beyond its own production. It holds or controls interests in mineral rights and joint ventures involving deposits and mines such as Kambove, Kipushi, Kamfundwa, Kolwezi, Deziwa and other assets in the Copperbelt. The company also has interests in mineral reserves and development opportunities involving copper, cobalt, zinc and germanium, as well as possible by-products such as gallium, indium, magnesium and antimony. Its declared strategic ambition has been to rebuild industrial capacity, improve governance and financial discipline, and return to a position comparable to that of a major African mining company. At the same time, its contracts, revenues, joint ventures and role in the privatization of state mining assets have attracted scrutiny from civil-society organizations, auditors and government investigators.

History

Gécamines traces its industrial lineage to the Union Minière du Haut-Katanga, established in 1906 by Tanganyika Concessions and Société Générale de Belgique to exploit the copper deposits of southern Katanga. The predecessor company made its first copper extraction in 1911. It expanded rapidly after the initial years of operation and became one of the most profitable enterprises in the Belgian Congo. Its activities and tax contributions were closely connected to the colonial administration's finances and to the development of infrastructure in Katanga. After Congolese independence in 1960, the new government initially had limited influence over UMHK. That relationship changed after Joseph-Désiré Mobutu's seizure of power and the rise of economic nationalism. The government sought a larger share of mining revenue and greater authority over mineral exports. Disputes intensified in 1966 after the government imposed higher export charges and UMHK increased copper prices without agreement from the authorities. The government announced plans to incorporate the Congolese operations into a national company and, in December 1966, seized control of company accounts and mining administration after UMHK resisted relocating its headquarters to the Congo. On 1 January 1967, the Congolese operations were placed under a state enterprise called Générale Congolaise des Minérais, or Gecomin. A subsequent agreement reached in February 1967 settled the confrontation: UMHK accepted the legitimacy of Gecomin and withdrew from management of the mines, while technical and managerial support was arranged through Société Générale des Minerais. The final compensation issues connected with UMHK were settled in the early 1970s. In 1971, Gecomin adopted the name Générale des Carrières et des Mines, abbreviated Gécamines. The company became the backbone of the national economy during the 1970s and 1980s. At its strongest, it produced approximately 500,000 tonnes of copper per year and was a major producer of cobalt and other associated minerals. The international copper-price collapse beginning in 1974 damaged its finances, but the company remained indispensable to the state. In 1989, Gécamines reportedly accounted for most of the country's export earnings and a substantial share of public revenue. Its decline accelerated in the 1990s. Aging equipment, inadequate maintenance, political interference, ethnic violence in Shaba, the closure of Kamoto in 1990 and the wider economic effects of conflict reduced output. World Bank-backed reforms required substantial workforce reductions through voluntary departures. After the Second Congo War, the 2002 Mining Code and the liberalization of the sector in 2003 created a framework for foreign investment and joint ventures. Gécamines was repositioned as a state-owned company being transformed into a commercially managed enterprise. Under a World Bank-related management arrangement with SOFRECO, Canadian lawyer Paul Fortin served as managing director and pursued partnerships, including cooperation with Chinese companies. He resigned in 2009. In 2010, Gécamines became a commercial company under private law while the Congolese state retained ownership. Albert Yuma Mulimbi became chairman of the board and promoted a five-year recovery program based on joint ventures, technological modernization, debt control and workforce rationalization. The company sought to retain meaningful interests in selected strategic assets rather than operate every mine directly. This approach led to relationships with Glencore, Freeport-McMoRan, Eurasian Natural Resources Corporation and China Nonferrous Metal Mining Group. A later recovery plan presented in 2016 proposed investment in production and modernization, while a 2018 organizational program called for decentralized business units, refreshed management, an operational staff reserve and the closure or modernization of older facilities. The Deziwa project with China Nonferrous Metal Mining Group became a central element of the strategy. The arrangement was designed around partner financing and construction of processing capacity, with initial planned output of 80,000 tonnes of copper and a longer-term ambition of 200,000 tonnes. Gécamines has also been involved in debates over mining-law reform, contract transparency, public revenue and the distribution of risks and returns in joint ventures. It supported the 2018 revision of the Mining Code, which increased state fiscal and regulatory leverage over international mining companies. Civil-society organizations and oversight bodies have questioned whether all proceeds from asset transactions and mining partnerships were properly accounted for. In 2021, the General Inspectorate of Finance opened an investigation, and Albert Yuma was removed as chairman later that year. The company continues to occupy a pivotal position in the Congolese mining system as both an operator and holder of strategic mineral interests.

  • 2021

    Leadership change and financial investigation

    [1]

    The General Inspectorate of Finance opened an investigation, and Albert Yuma was removed as board chairman later that year.

  • 2018

    Deziwa processing agreement is announced

    [1]

    Gécamines announced a major agreement with China Nonferrous Metal Mining Group for processing facilities linked to the Deziwa copper deposit.

  • 2015

    Copper-cobalt cooperation with China Nonferrous Metal Mining

    [1]

    Gécamines entered a strategic cooperation arrangement with China Nonferrous Metal Mining.

  • 2010

    Gécamines becomes a commercial company

    [1]

    The state enterprise was converted into a commercial company under private law while remaining state-owned.

  • 2002

    New Mining Code is adopted

    [1]

    The postwar mining framework established new rules for the sector and prepared the way for broader foreign participation.

  • 1971

    The company adopts the Gécamines name

    [1]

    Générale Congolaise des Minérais was renamed Générale des Carrières et des Mines.

  • 1967

    Gecomin is created

    [1]

    The Congolese government took control of the local UMHK operations and established Générale Congolaise des Minérais.

  • 1911

    First copper extraction by UMHK

    [1]

    The Union Minière du Haut-Katanga began commercial copper extraction in Katanga.

  • 1906

    Union Minière du Haut-Katanga is founded

    [1]

    The predecessor enterprise was established to exploit copper and other mineral deposits in southern Katanga.

Products and positioning

State-owned strategic mining champion and mineral-asset partner of the Democratic Republic of the Congo

  • Base metal

    Copper

    Copper is Gécamines' principal historical and strategic product. The company inherited extensive copper assets in the Katanga Copperbelt and has held interests in mines and projects including Kambove, Kipushi, Kamfundwa, Kolwezi and Deziwa. Copper production has fluctuated sharply with commodity prices, mine closures, infrastructure conditions and the structure of joint ventures.

  • Battery and specialty metal

    Cobalt

    Cobalt is a major strategic mineral associated with Gécamines' copper deposits. The company has sought to increase cobalt output and develop processing capacity through partnerships, particularly as global demand for battery materials increased. Cobalt production is generally integrated with copper mining and processing rather than treated as an entirely separate operating line.

  • Associated minerals

    Zinc and germanium

    Gécamines' mineral portfolio includes zinc and germanium resources associated with its broader concession and exploration base. These materials, together with possible by-products such as gallium, indium, magnesium and antimony, form part of the company's stated interest in expanding beyond its traditional copper-cobalt focus.

Controversies

  • 2021

    General Inspectorate of Finance investigation

    The Democratic Republic of the Congo's General Inspectorate of Finance opened an investigation involving Gécamines. Publicly available reference material does not establish a final finding or complete outcome.

  • 2017

    Questions over missing proceeds from mining privatization

    The Carter Center reported that Gécamines appeared unable to account for almost one billion US dollars connected with the Democratic Republic of the Congo's copper-mine privatization program. The allegation contributed to wider concerns about transparency, asset transfers and public revenue in the Congolese mining sector.

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Brand decisions

  • 2018

    Deziwa processing developmentProduct launch

    Background

    Gécamines wanted to increase output by combining its mineral rights with external financing, construction expertise and operating capacity.

    Action taken

    The company announced an agreement with China Nonferrous Metal Mining Group for two ore-processing plants associated with the Deziwa copper deposit, with planned first-phase output of 80,000 tonnes of copper and a longer-term target of 200,000 tonnes.

    Aftermath

    The project was presented as a model for larger, partner-financed copper-cobalt developments in which Gécamines would retain a strategic role.

    Announced project investment. 880 million US dollars (2018 announcement)

  • 2018

    Dispute and revised partnership with GlencoreOther

    Background

    Gécamines disputed the capitalization of Kamoto Copper Company and alleged that the joint venture's borrowing from Glencore carried unfavorable terms.

    Action taken

    Gécamines filed a legal claim against Glencore in April and the parties announced a revised partnership agreement in June.

    Aftermath

    The parties described the settlement as a new mutually beneficial partnership, although the episode highlighted tensions over financing, debt and joint-venture governance.

  • 2018

    Internal operational modernizationStrategy

    Background

    The company sought to adapt its organization and industrial base to international mining standards.

    Action taken

    Gécamines announced decentralized business units, management renewal, an operational reserve for staff redeployment, closure of older sites, modernization of Shituru and Kamfundwa, and construction of a heap-leaching plant in Panda.

    Aftermath

    The program marked an effort to rebuild operating capability while concentrating resources on newer and more productive assets.

  • 2015

    Strategic cooperation with China Nonferrous Metal MiningM&A

    Background

    Gécamines sought international partners capable of financing and developing copper-cobalt resources and processing infrastructure.

    Action taken

    Gécamines signed a strategic copper and cobalt cooperation agreement with China Nonferrous Metal Mining.

    Aftermath

    The relationship developed into the Deziwa project and became an example of Gécamines' preferred partnership model.

  • 2010

    Conversion into a commercial companyStrategy

    Background

    Gécamines had experienced declining production, financial stress and infrastructure deterioration after the collapse of its former vertically integrated operating model.

    Action taken

    The company was converted into a commercial company under private law, while the Congolese state remained its sole shareholder. The accompanying strategy emphasized joint ventures, modernization, debt control and workforce reduction.

    Aftermath

    The change established the organizational framework for a more partnership-oriented business model and for selective development of strategic assets.

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