Gécamines and the Battle for Congo’s Copper

Before Gécamines Came Union Minière

The history of Gécamines begins in 1906 with the Union Minière du Haut-Katanga, usually known as UMHK. The company was created during the final years of King Leopold II's control over the Congo and became one of the central industrial institutions of Belgian colonial rule after the Belgian state formally annexed the territory in 1908.

Katanga contained exceptionally rich deposits of copper, cobalt, zinc and other minerals. Exploiting them at industrial scale required far more than digging mines. The region needed railways, power generation, metallurgical plants, housing, water, workshops and a workforce capable of operating an increasingly sophisticated mining system.

UMHK gradually built that system. According to Gécamines' own historical records, the company constructed an oxide-ore treatment plant in 1909 and began copper production at Lubumbashi in 1911. Mines and processing facilities followed at Kipushi, Kambove, Kolwezi, Kamoto and other sites that remain familiar names in the Congolese mining industry more than a century later.

By the late 1920s, the Belgian Congo had become one of the world's major copper exporters. UMHK had evolved from a mining concession into an industrial complex with mines, concentrators, furnaces, hydrometallurgical plants, power infrastructure and related subsidiaries.

The company also became one of the largest employers in Katanga. That industrial expansion helped create the modern mining cities of southern Congo, but it took place within a colonial system built around racial hierarchy and unequal political power. Early labor recruitment included coercive practices, and workers were brought to the Copperbelt from distant parts of Congo and neighboring territories when local labor supply proved insufficient.

As the workforce became permanent, UMHK developed housing, health services, schools and company towns around its mines. These services later became an important part of the Gécamines system, although they also gave the mining company extraordinary control over the social and economic life of its workforce.

Katanga Became an Integrated Mining Economy

UMHK understood that large-scale mining depended on industries surrounding the mine itself. It created or participated in businesses producing electricity, sulphuric acid, metallurgical products and food. Hydro-electric infrastructure supplied energy to mining and processing operations. Engineering workshops maintained heavy equipment. Industrial facilities converted ore into progressively higher-value metal products.

This integration mattered because Katanga was far from the major industrial centers and seaports through which its products ultimately reached international markets. A mine lacking reliable electricity or rail transport had little value regardless of the quality of its orebody.

The mining company therefore became an organizer of an entire regional economy. Mines provided employment. Company infrastructure supported towns. Copper exports generated foreign exchange. Railways and power systems developed around industrial production.

This model created enormous productive capacity, but it also concentrated economic power inside one institution. The company that eventually became Gécamines inherited both sides of that legacy: exceptional industrial assets and responsibilities far beyond those normally carried by a commercial mining company.

The Katanga Mining System Also Supplied the Atomic Age

One of the most consequential assets controlled by Union Minière was Shinkolobwe, a mine containing exceptionally high-grade uranium ore.

Before nuclear fission transformed the strategic value of uranium, Shinkolobwe had primarily been exploited for radium. As war approached in Europe, Union Minière executive Edgar Sengier recognized that uranium could become strategically important and arranged for roughly 1,200 tonnes of ore to be moved to the United States.

That stockpile became critically important after the United States launched the Manhattan Project. U.S. government historical records identify Shinkolobwe as the richest uranium source available to the project. The U.S. National Park Service estimates that Union Minière ultimately supplied approximately two-thirds of the uranium acquired by the Manhattan Project.

The episode placed Katanga at the center of one of the most important technological and military developments of the twentieth century decades before cobalt became associated with electric vehicles and battery supply chains.

It also established a pattern that continues today. Minerals extracted from southern Congo can have strategic importance far beyond their immediate market price.

Mobutu Nationalizes the Copper Industry

Congo became independent from Belgium in 1960, but Union Minière remained a powerful Belgian-controlled institution operating the country's most important industrial mining assets. Control of Katanga's mineral wealth became inseparable from the wider struggle over political sovereignty during the first years of independence.

Joseph-Désiré Mobutu seized power in 1965. The following year, the Bakajika Law strengthened state sovereignty over Congolese land and subsoil resources. In 1967 the government nationalized Union Minière's Congolese assets.

The company initially became the Générale Congolaise des Minerais, or GECOMIN. In 1970 it became the Générale Congolaise des Mines, GÉCOMINES. In 1972 the name changed again to the Générale des Carrières et des Mines, giving the company the Gécamines identity it retains today.

Nationalization transferred the mining system into state ownership, although technical and commercial links with Belgian mining interests continued in several forms during the transition. Former Union Minière interests remained involved in marketing Congolese copper under arrangements negotiated after nationalization.

For Mobutu, control of the mines had both economic and political value. Copper provided the foreign currency required by the state. Nationalization also allowed the regime to present itself as recovering control of national resources from colonial interests.

Gécamines soon became much more than another state enterprise. It became the economic institution through which much of Zaire's mineral wealth entered the state.

When Gécamines Carried the Zairian Economy

During its strongest years, Gécamines operated one of the world's major integrated copper businesses. It controlled mines, concentrators, smelters and hydrometallurgical facilities across the Katanga Copperbelt while producing copper, cobalt and zinc at significant scale.

The company was also a major employer. Gécamines reports that it employed more than 34,000 people during the period from 1974 to 1992. Entire communities depended on the company directly or indirectly.

Gécamines provided schools, hospitals, employee housing and other social infrastructure. It also became involved in agriculture, including maize cultivation used to supply company milling operations and communities across the industrial Copperbelt.

These functions reflected the paternalistic structure inherited from Union Minière, but the context had changed. In an increasingly weak Zairian state, Gécamines often performed services that public institutions struggled to provide.

The industrial peak came during the 1980s. Gécamines records its 1986 production at 476,000 tonnes of copper, 14,500 tonnes of cobalt and 64,000 tonnes of zinc metal. Annual revenue was around USD 1 billion, an extraordinary figure for the Zairian economy at the time.

For years the company was the country's principal source of foreign exchange. Its copper exports effectively linked the Zairian state to the international economy.

The Success Contained the Seeds of the Collapse

By the time Gécamines reached peak production, serious weaknesses had already accumulated inside the business.

International copper mining was becoming more competitive. Producers elsewhere were cutting costs, modernizing mines and investing in new technology. Gécamines continued operating aging infrastructure while the government extracted large amounts of cash from the company.

World Bank reviews conducted around the period of Gécamines' collapse were unusually direct about the problem. They concluded that the company had increasingly been treated as a source of state funds rather than as an industrial asset requiring continuous reinvestment.

Cash that could have funded maintenance, stripping, mine development and equipment replacement was diverted elsewhere. Procurement practices increased costs. Political appointments weakened commercial discipline. Gécamines drew down ore stockpiles and concentrated on easier sections of deposits to maintain production in the short term.

The company's social responsibilities also grew increasingly expensive as the state itself lost the ability to provide basic services. Hospitals, schools, employee support and community infrastructure remained important to the population, but funding them placed another burden on a mining business already losing investment capacity.

Political extraction made the problem worse. Academic research on the period describes Gécamines as a principal source of cash for the Mobutu regime. The marketing of copper and cobalt became another area through which revenue could be diverted from the operating company.

This was ultimately a capital allocation problem. Gécamines controlled world-class deposits and valuable industrial infrastructure. Too little of the cash generated by those assets returned to the mines in the form of productive investment.

Then the Industrial System Broke

The deterioration accelerated after 1987 and became catastrophic at the beginning of the 1990s.

In September 1990, the central section of the Kamoto underground mine collapsed. Kamoto was one of the most important mines in the Gécamines system. Production was also affected by flooding and operational problems elsewhere, including at major open-pit operations.

These mine failures occurred as Zaire entered a much wider political and economic crisis. Infrastructure deteriorated. Civil disturbances disrupted operations. International financial support was withdrawn. Management became increasingly difficult while the state itself approached institutional collapse.

The production figures show how rapidly Gécamines unraveled. A World Bank assessment records copper output falling from roughly 470,000 tonnes in 1985 to 221,000 tonnes in 1991. By 1993 the company was operating at around 10% of capacity and mining production had almost stopped. Another World Bank review recorded copper production of only about 34,000 tonnes by 1995.

The collapse of Gécamines then deepened the crisis of the state because the company had been one of Zaire's most important sources of revenue and foreign currency.

This feedback loop was brutal. The state weakened Gécamines by extracting resources from it. Gécamines weakened further because public infrastructure and political institutions were collapsing. Lower mining production then deprived the state of even more revenue.

That distinction matters. The company's decline came from the deterioration of the institution and its assets rather than geological exhaustion.

By 2003, World Bank assessments described Gécamines as bankrupt, carrying more than USD 1.6 billion of debt. Many employees had gone unpaid for more than two years. Mines that had once generated hundreds of thousands of tonnes of copper required enormous amounts of capital before they could operate competitively again.

The Joint Venture Era Replaced the Old Gécamines Model

The response eventually changed the structure of Congolese mining.

Gécamines itself dates the beginning of its joint venture strategy to 1995. Rather than trying to finance the rehabilitation of every mine alone, the company began contributing mineral assets and mining rights to partnerships with outside investors capable of bringing capital and operating expertise.

The model accelerated after the fall of Mobutu and the wars that followed. A new Mining Code adopted in 2002 sought to attract private investment into an industry whose state-owned infrastructure had largely collapsed.

World Bank-backed restructuring also reduced Gécamines' workforce. A voluntary departure program beginning in 2003 eventually covered more than 10,000 workers. Consultants reviewed the company's assets, liabilities and partnership agreements while the government considered how much of the old integrated mining system could realistically be rebuilt.

The new structure looked very different from Gécamines in 1986.

Foreign mining companies would finance and operate many of the large mines. Gécamines frequently remained inside the ownership structure as a minority shareholder, contributing the underlying mineral rights or historical assets.

That approach brought private capital back into the Copperbelt.

It also transferred much of the operating control away from Gécamines.

Congo’s Mining Industry Recovered Faster Than Gécamines

From the 2000s onward, the Democratic Republic of Congo returned to the front rank of global copper and cobalt production. New investment rehabilitated old deposits and developed enormous new projects.

Tenke Fungurume became one of the world's most important copper-cobalt operations. Kamoto and the broader Kolwezi mining complex returned to large-scale production. Chinese, Swiss, Canadian and other international mining groups committed billions of dollars to Congolese assets.

Gécamines participated in many of these projects, but usually as the minority state partner.

This produced an unusual result. Congo's copper production eventually surpassed the levels reached during the old Gécamines era, while Gécamines' own direct production remained only a small fraction of its historic output.

The company itself later became increasingly critical of this arrangement. Its 2022 management report argued that many partnerships left private partners controlling operations from end to end while Gécamines had insufficient visibility over reserves, production, debt and commercial arrangements.

The original rationale for the joint venture system had been straightforward. Gécamines supplied assets. Investors supplied capital and technical capability. Both sides would benefit when production restarted.

In practice, shareholder loans, accumulated project debt, transfer pricing, marketing arrangements and limited board influence could delay or reduce the cash ultimately reaching the state shareholder.

Gécamines increasingly concluded that holding minority shares alone gave it too little influence over the economic life of its own assets.

Gécamines Began Fighting for Better Economics

The modern strategy has increasingly focused on renegotiating the relationship between Gécamines and its operating partners.

The Tenke Fungurume dispute became one of the clearest examples. Gécamines holds 20% of TFM while China's CMOC controls the remaining 80%. A dispute over reserves, royalties and shareholder economics became serious enough that copper and cobalt exports were suspended for months.

The settlement reached in 2023 was substantial. CMOC agreed that TFM would make an USD 800 million settlement payment to Gécamines over six years. TFM also committed to distribute at least USD 1.2 billion of dividends to Gécamines over the current project period.

Another provision proved especially important for Gécamines' future strategy. The company received the right to purchase a volume of TFM production proportional to its 20% shareholding under agreed commercial terms.

That gave Gécamines something fundamentally different from a dividend entitlement.

It gave the company physical tonnes.

A state mining company with physical copper and cobalt available for sale can enter the commodity market directly, conduct competitive tenders and build relationships with international buyers. It can see the pricing, premiums, logistics and commercial economics surrounding its production instead of relying entirely on information supplied by the operating partner.

Gécamines began seeking similar rights across other joint ventures.

The Return of Kipushi Carries Historical Weight

Kipushi represents another important part of the current Gécamines story.

The underground mine near the Zambian border first entered operation in 1924 and became one of the great mines of the old Union Minière system. It produced copper before later becoming famous for exceptionally high-grade zinc mineralization alongside germanium and other metals.

The mine had been inactive for more than thirty years when Gécamines and Ivanhoe Mines agreed a new framework to return it to production.

Construction of the new concentrator was completed in 2024, and concentrate production restarted that year. President Félix Tshisekedi formally reopened the mine in November 2024.

The partnership gives Gécamines a larger economic position over time. Under the agreed structure, its ownership in Kipushi Corporation rises to 38% and is scheduled to increase to 43% in 2027, with further ownership transfers contemplated after specified quantities of reserves have been mined.

Kipushi therefore looks different from some earlier partnership structures. Gécamines' ownership can increase as the project progresses rather than steadily diminishing through financing arrangements.

The restart also reconnects the modern company with one of the industrial assets inherited from Union Minière.

Gécamines Now Wants to Trade Its Own Metals

The most interesting recent development may be happening outside the mine itself.

Gécamines is increasingly trying to become a commodity marketer.

In 2024 its chairman told Reuters that the company wanted direct offtake rights over copper and cobalt produced by joint ventures. The objective was to turn equity ownership into physical marketing rights rather than remain dependent on dividends determined after the operating partner had sold the metal.

That strategy accelerated quickly.

In late 2025 Gécamines announced a partnership with Mercuria to support the marketing of copper, cobalt and other critical minerals. The company described the purpose as obtaining greater control and visibility over the "equity tonnes" corresponding to its stakes in mining partnerships.

In January 2026, Gécamines Trading announced its first direct purchase of 100,000 tonnes of copper from Tenke Fungurume's 2026 production. The volume corresponds to 20% of TFM's output, matching Gécamines' equity interest. The company said the copper was destined for the U.S. market.

Gécamines has stated an ambition eventually to control marketing rights over as much as 500,000 tonnes of copper and 40,000 tonnes of cobalt annually.

If achieved, those volumes would place the company back into global commodity markets at a scale reminiscent of its industrial peak, although the economic model would be completely different.

Gécamines in the 1980s produced the metal itself.

The emerging Gécamines can obtain part of its volume through ownership rights in mines operated by partners and then market those tonnes directly.

What Gécamines Is Today

Modern Gécamines sits somewhere between a mining company, a state mineral holding company and an emerging commodity trading organization.

Its sole shareholder is the Congolese state. It retains mining titles, industrial sites, engineering facilities and interests in major partnerships across Haut-Katanga, Lualaba and Haut-Lomami.

Its direct industrial production remains far below the levels of the 1980s. The company's 2024 management report recorded 11,186 tonnes of copper produced through Gécamines operations and partner treatment arrangements, alongside a small quantity of cobalt. Its historic Shituru metallurgical plant was shut in July 2024 after aging equipment, repeated failures and weak economics made continued operation unattractive.

That means Gécamines currently derives much of its strategic importance from assets that other companies operate.

It holds stakes in major copper, cobalt and zinc projects. It controls mineral rights capable of supporting future development. It negotiates royalties, dividends, shareholder rights and commercial access to physical output. The reopening of Kipushi also shows that selected historic assets can still be rebuilt through new capital and partnership structures.

The company is therefore pursuing two forms of rehabilitation at once.

One involves physical mining and industrial capacity.

The other involves rebuilding the commercial power that comes from owning, understanding and selling Congolese minerals.

The second may prove faster.

A Century Later, the Business Has Come Full Circle

Union Minière built its power through control of deposits, processing infrastructure and international mineral sales. Mobutu nationalized that system in an attempt to place the country's most valuable industrial assets under state control. Gécamines then became enormously productive, but the state extracted cash faster than the company could reinvest it.

When the industrial system collapsed, foreign capital returned through joint ventures. That restored mining production while leaving Gécamines with minority positions in many of the country's most valuable operations.

The current strategy is an attempt to capture more value without returning entirely to the old state monopoly.

Private companies can still operate and finance mines. Gécamines wants stronger governance, more valuable equity rights, greater transparency and direct access to the physical metal generated by its stakes.

That makes Gécamines unusually important to the next phase of Congo's mining history.

Global demand for copper is rising with electrification, grid expansion and data-center development. Congo already dominates world cobalt supply and has become one of the largest copper-producing countries. Governments in China, the United States and elsewhere increasingly treat access to those materials as a strategic issue.

Gécamines once stood at the center of a colonial struggle over copper and uranium. It later stood at the center of Mobutu's state economy. Today it is again becoming an important institution in the geopolitical contest over critical minerals.

The metals changed.

The strategic importance of the Copperbelt did not.