Cabo Delgado's Resource Wealth Fuels Islamist Insurgency Amid Corruption and Abuse

The conflict has displaced at least 1 million people; security forces and mining company personnel have committed documented physical violence, sexual violence, torture, illegal detention, and killings against local miners and communities.
Wealth leaves the province; nothing returns to those who live there.
The pattern of resource extraction and inequality that fuels recruitment for the armed insurgency.

Cabo Delgado holds 80% of world's ruby reserves plus vast timber and gas deposits, yet remains Mozambique's poorest province with average income below $1/day. Foreign mining companies and Chinese timber operators dominate resource extraction while local communities face forced evictions, police brutality, and minimal benefit from wealth.

  • Cabo Delgado holds approximately 80% of the world's ruby reserves, plus vast timber and natural gas deposits
  • Average income in the province is below $1 per person per day; 61% illiteracy; 45% of children chronically malnourished
  • At least 1 million people have been displaced by the decade-long conflict
  • Gemfields paid €6.7 million in 2019 to settle a lawsuit by 273 miners alleging violence by company security and state forces
  • In 2016, Mozambican timber worth $400 million reached Chinese markets, but customs declared only $100 million in exports

An investigative report reveals how exploitation of Cabo Delgado's ruby, timber, and gas reserves—combined with corruption and security force abuses—has fueled a decade-long Islamist insurgency that has displaced over 1 million people.

Cabo Delgado sits at the northern edge of Mozambique, a province so rich in rubies, timber, and natural gas that it should be among the country's wealthiest regions. Instead, it remains the poorest. The average person there lives on less than a dollar a day. Sixty-one percent of the population cannot read. Nearly half of all children are chronically malnourished. For almost a decade, an armed group calling itself Al-Shabab has waged war across this landscape of contradiction—vast resource wealth alongside grinding poverty—and the connection between the two is no accident.

The violence began in earnest in October 2017, when attackers struck police stations in the coastal town of Mocimboa da Praia, killing around fifteen people. But the seeds had been planted years earlier. In 2017, during the rainy season, thousands of artisanal miners working near Montepuez were arrested by security forces for illegal mining. Many of these garimpeiros, as they are known locally, came from outside the region. Some fled to Tanzania. Others stayed and joined the armed group that was quietly gaining strength in the bush. "From then on, it was war," one miner would later recall.

The trigger was resource extraction, but the fuel was grievance. Montepuez Ruby Mining, a subsidiary of the British company Gemfields, holds a 25-year concession covering 10,000 square kilometres of Cabo Delgado. The concession was granted in 2012, just three years after ruby deposits were discovered in the province—deposits that now account for roughly eighty percent of the world's ruby reserves. In 2019, Gemfields paid €6.7 million in compensation to 273 miners who had sued the company for human rights violations, alleging that security personnel and Mozambican forces had committed physical violence, sexual violence, degrading treatment, and killings. Gemfields acknowledged violence had occurred but denied responsibility. The abuses have not stopped. According to Aly Caetano, a human rights coordinator in Cabo Delgado, torture, illegal detention, and killings continue. Meanwhile, the road connecting Montepuez to Pemba—the provincial capital—remains among the worst in the region, a visible symbol of how little the province's wealth has been reinvested in its own infrastructure.

The timber trade tells a parallel story. Niassa Reserve, a protected area in the far north, has become a hub for trafficking in ivory and valuable timber species. In August 2020, Mozambican authorities seized 82 containers of illegally cut logs at the port of Pemba, bound for China. Four months later, sixty-six of those containers somehow cleared customs and resumed their journey. Mozambique's timber industry is dominated by Chinese operators with close ties to senior figures in Frelimo, the ruling party. One such figure is José Pacheco, a former governor of Cabo Delgado and former agriculture minister, who has documented financial connections to Chinese timber interests. In 2016 alone, Mozambican timber worth more than four hundred million dollars reached Chinese markets, yet customs authorities declared only one hundred million in exports that year.

Al-Shabab has weaponized this inequality. The group's leadership includes Maulana Ali Cassimo, a former agriculture ministry official who traveled through rural communities on a motorbike denouncing forced evictions, police brutality, and what he characterized as Maputo's theft of Cabo Delgado's wealth. The group's messaging, according to researchers, centers on foreign control of natural resources. In July 2020, the group's propaganda newspaper carried the headline: "Crusaders, beware of your investments in Mozambique." Driving foreign economic players out of the province became an explicit objective. Among those targets is the consortium developing a massive offshore gas field near Palma, containing an estimated five trillion cubic metres of reserves and led by the French energy company TotalEnergies. After years of suspension, TotalEnergies announced this year that work would resume.

The scale of the conflict's human toll is staggering. The United Nations estimates that at least one million people have been displaced. Estimates of Al-Shabab's fighting strength vary wildly—the U.S. National Counterterrorism Center counted around three hundred militants in 2025, while the International Crisis Group estimated three thousand in 2020. What is certain is that a decade of war has hollowed out entire communities, and that the insurgency continues to draw recruits from a population that has watched its province's immense wealth flow outward while their own circumstances deteriorate. The investigation into these dynamics—conducted by thirty journalists from ten media organizations over five months and nearly one hundred interviews—is the first installment of a larger project called Mozambique Exposed. It reveals not a simple story of terrorism, but a more complex one: how the extraction and mismanagement of resources, combined with documented abuses by both security forces and private companies, created the conditions in which an armed group could position itself as an alternative to a system that had failed its people.

From then on, it was war
— An artisanal miner, recalling the 2017 security force crackdowns
Torture, illegal detention and killings continue. Meanwhile, the Montepuez-Pemba road remains the worst in the region. This feeling of being robbed feeds the terrorists' narrative.
— Aly Caetano, Cabo Delgado coordinator for the Centre for Democracy and Human Rights
Al-Shabab wants to establish an Islamic caliphate. They believe a fairer order should be put in place. They capitalise on a social situation marked by unemployment and underdevelopment.
— Vasco King of Kundeleya, a human rights organisation based in Pemba
The Hearth Conversation Another angle on the story
Inventor

Why did the miners join an armed group rather than simply leave the province?

Model

Because leaving meant losing everything—their livelihoods, their networks, their place. And the group offered something the government hadn't: a narrative that made sense of their dispossession. They weren't just poor; they were being robbed.

Inventor

But Al-Shabab is explicitly Islamist, linked to ISIS. That seems like a large leap from labor grievance to militant ideology.

Model

It is, but ideology travels on the back of material conditions. The group's leaders spoke the language of fairness and Islamic order, yes, but they also spoke directly to forced evictions and police brutality. For people with nothing, a promise of a different system—any different system—can be compelling.

Inventor

The ruby mining company paid compensation but denied responsibility. How does that work?

Model

It's a legal settlement, not an admission. The company acknowledged violence occurred in the area but wouldn't say its own security forces or practices caused it. Money changes hands, the case closes, and the underlying dynamics—the extraction, the inequality, the abuses—continue.

Inventor

What's the connection between the timber smuggling and the insurgency?

Model

It's the same story told twice. Wealth leaves the province illegally, with the knowledge of senior officials who profit from it. Local people see this happening and see nothing returned to them. That feeds the insurgency's recruitment message: your leaders are stealing from you.

Inventor

TotalEnergies is resuming work on the gas project. What does that mean for the conflict?

Model

It means the group has explicitly named the project as a target. The company is betting it can operate despite the threat. Whether that's possible depends on whether the underlying grievances that fuel recruitment get addressed—and so far, there's no sign they will be.

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