Mozambique's illegal miners reap risky rewards but land suffers

Tembo Mucanha (right) and Fernando Massada (left) taking a break at a mining site in Mucurumadze, Manica Province, Mozambique, 23 July, 2025. Thomson Reuters Foundation/Samuel Come

Tembo Mucanha (right) and Fernando Massada (left) taking a break at a mining site in Mucurumadze, Manica Province, Mozambique, 23 July, 2025. Thomson Reuters Foundation/Samuel Come

What’s the context?

In Mozambique's Manica, illegal miners take huge risks while farmers grapple with mercury in the soil and polluted water.

  • Illegal miners flock to Mozambique's Manica to seek gold
  • Miners lack protection but say risks are worth reward
  • Mining activities pollute rivers and soil, farmers say

MANICA, Mozambique - Digging for gold and jewels is backbreaking and dangerous work, carried out without the most basic protective equipment, and it is illegal.

But for the barefoot miners in Mozambique's Manica province, the risks are worth it.

Manica, which borders Zimbabwe to the west, has become a magnet for desperate men, hoping to strike gold or unearth precious stones using picks and shovels.

"There's a lot of money here," said Fernando Massada, who is among hundreds of men Context/the Thomson Reuters Foundation found mining in the Mucurumadze region.

The miners, known as garimpeiros, come from all over southern Africa and include Mozambicans, Zimbabweans and Malawians.

Massada said he once extracted 270 grams of gold on a single day and used the money to renovate his house and buy a motorbike.

"That's why it's not easy for us to leave," he said.

But such dreams have a toxic side. The rivers around the mining sites are polluted, and mercury has seeped into the soil, creating a nightmare for farmers.

Mozambique has about 230,000 artisanal miners, according to 2021 figures from the National Statistics Institute (INE), and Manica Province has 338 small-scale mining sites, of which 288 are active.

Miners panning for gold by washing ore in Mucurumadze, Manica Province, Mozambique, 23 July, 2025. Thomson Reuters Foundation/Samuel Come

Miners panning for gold by washing ore in Mucurumadze, Manica Province, Mozambique, 23 July, 2025. Thomson Reuters Foundation/Samuel Come

Miners panning for gold by washing ore in Mucurumadze, Manica Province, Mozambique, 23 July, 2025. Thomson Reuters Foundation/Samuel Come

The World Bank estimates about 10 million people in rural areas in sub-Saharan Africa are engaged in artisanal mining.

A report last year from the World Gold Council said illicit trade in gold from artisanal mining was feeding conflicts from Ukraine to Sudan, funding terrorism and fuelling organised crime.

But for the men toiling in Mucurumadze, the perilous work is a lifeline in one of the world's poorest countries, even if the rewards are hard to predict.

"It depends on luck," said Zimbabwean Simon Chibata, who has lived in Mozambique since 2015 and has been mining since 2017.

He lives 60 km (37 miles)from Mucurumadze and sometimes spends a week at a time at the mines.

Miners can sell the gold directly to buyers who come to the sites, and many choose to do so even though the prices are lower than in Manica Town, about 10 km (6.2 miles) away. They fear being stopped by authorities in town.

At the mines, gold sells for $69 per gram, while in Manica Town it goes for about $116 per gram.

"Sometimes, you can earn enough money to go home the same day you arrive," said Chibata, a father of seven children.

A miner descending into a pit where ore is extracted in Mucurumadze, Manica Province, Mozambique, 23 July, 2025. Thomson Reuters Foundation/Samuel Come

A miner descending into a pit where ore is extracted in Mucurumadze, Manica Province, Mozambique, 23 July, 2025. Thomson Reuters Foundation/Samuel Come

A miner descending into a pit where ore is extracted in Mucurumadze, Manica Province, Mozambique, 23 July, 2025. Thomson Reuters Foundation/Samuel Come

Toxic treasure

Artisanal mining in Mozambique took off in the late 1980s with the closure of large-scale mining production sites, including gold mines in Manica. Farmers and migrant workers joined those prospecting illegally for gold.

"We must acknowledge that many Mozambicans engage in (illegal) mining as a means of livelihood, without observing the environmental and safety regulations that are commonly required," said then Minister of Mineral Resources and Energy Carlos Zacarias last year.

In June, at least three gold miners were killed in the collapse of a mine in Manica.

Another danger is the use of mercury, one of the top 10 chemicals of public health concern, according to the World Health Organization.

Illegal miners use mercury to extract gold particles from the sand and rock and then burn off the toxic metal, which turns to vapour and is absorbed by plants, soil and rivers.

Mercury can damage the nervous system, kidneys, liver and immune system, and it is linked to birth abnormalities.

Artisanal and small-scale gold mining accounts for up to 40% of global mercury emissions, according to the United Nations.

A 2022 study by researchers at Mozambique's Púnguè University found that constant burning of mercury in Manica has increased soil mercury concentrations.

The mining in Mucurumadze has polluted the Révuè, Nhancuarara and Mucurumadze rivers, affecting the communities living along their banks. The waters are also full of silt because of mining activities nearby.

The Révuè feeds the Chicamba Hydroelectric Dam and supplies the region's water treatment plant as well as communities.

A miner holding a small amount of gold in Mucurumadze, Manica Province, Mozambique, 24 July, 2025. Thomson Reuters Foundation/Samuel Come.

A miner holding a small amount of gold in Mucurumadze, Manica Province, Mozambique, 24 July, 2025. Thomson Reuters Foundation/Samuel Come.

A miner holding a small amount of gold in Mucurumadze, Manica Province, Mozambique, 24 July, 2025. Thomson Reuters Foundation/Samuel Come.

Environmentalist Rui Silva, who has analysed the effect of mining on other rivers in Mozambique, said illegal mining leads to deforestation as well as river and soil contamination.

"This is serious because these activities pollute river ecosystems, affecting both health and agricultural activities for those not involved in mining," Silva told Context/the Thomson Reuters Foundation.

About 10 km (6 miles) from the mining site, Marta Arminda used to grow vegetables using river water but she says she can no longer do so.

"The water has been dirty and full of mud. Even if I watered lettuce or onions, they wouldn't grow because the soil would dry out - the water has too much sediment," said the 32-year-old mother of five children.

Instead, she sells food to miners at the mining site.

"It's not as profitable as growing vegetables, but I can't just sit idle," she said.

About 500 fishermen have abandoned their trade due to pollution in the Révuè and Chicamba rivers, which caused fish numbers to drop, said Sibião Kunai, head of the Chicamba Dam Fishing Community Council.

Neither Mozambique's Ministry of Mineral Resources and Energy nor the Ministry of Health responded to requests for comment.

Silva said he believes the problems can only be mitigated by raising awareness among miners about the negative impacts.

But for people like Tembo Mucanha, a Malawian who has been mining in Manica for nearly a decade, it is hard to picture an alternative.

He returned to Malawi in 2019, but the effects of the Covid pandemic in his homeland, also one of the world's poorest countries, drove him back across the border to Mozambique.

"I had to return because this is all I know how to do in life," he said. "Here, I feel I have a profession that gives me decent money."

($1 = 0.7477 pounds)

(Reporting by Samuel Come. Editing by Clar Ni Chonghaile and Ellen Wulfhorst.)


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