American-owned Mine Suspends Operations: What It Means for Lunsar and Sierra Leone

Marampa Mines Limited has told the Government of Sierra Leone it will temporarily suspend operations at its iron ore mine near Lunsar, Port Loko District. It is a dramatic turn for a mine that was celebrated as the country’s flagship U.S. investment just 21 months ago.

The company notified the Minister of Mines and Mineral Resources on 22 October 2026, in a staff letter signed by General Manager Angula Kalili and Paul Lombard, Chief Executive of parent company Marampa Mines Holdings. It blamed difficult market conditions, high freight and operating costs, and ongoing operational challenges.

Marampa calls the move the next phase of the “Marampa Reset” it announced on 22 September, which put stability ahead of growth.

What the letter says happens next

• Care and maintenance. A minimum crew stays on site for safety, security, power, tailings and water management, and environmental protection.
• Shutdown plan. Management is drafting a controlled shutdown plan. Timing depends on regulators and site readiness.
• Fuel rationing. High fuel prices limit new purchases, so existing stocks are kept for essential services.
• Job cuts continue. Restructuring already under way will go ahead.
• Ready to restart. The company says it wants to keep the mine ready to restart when markets improve, on a leaner cost base.

The letter gives no restart date, no headcount figure and no estimate of the impact on production.

From expansion to reset

Marampa is 90% owned by Gerald Group, a metals trader with majority U.S. ownership, and 10% by the Government of Sierra Leone under the 2021 settlement that restarted the mine.

In under two years, it went from its biggest-ever expansion to a suspension notice:

• April 2023: first Community Development Fund payout, US$1.7 million to the Marampa and Maforki chiefdoms.
• January 2025: President Bio commissions the 3.75 million tonnes a year plant, the mine’s biggest investment to date.
• September 2026: the “Marampa Reset” is announced. The company says the plant never ran consistently at 3.75 Mtpa at competitive cost.
• 5 October 2026: about 925 job cuts are reported, taking the workforce from about 4,200 to about 3,275. Marampa has not confirmed these figures.
• 22 October 2026: the suspension notice is filed.

Why now: a price squeeze meets a cost spike

Marampa is caught between falling iron ore prices and rising fuel and freight costs. Benchmark iron ore traded at about US$90.73 a tonne on 22 October, down 14% on a year earlier, according to Trading Economics.

• Weak Chinese steel demand. Singapore iron ore futures hit a two-year low just under US$90 a tonne on 15 October, Reuters reported. Worldsteel now expects global steel demand to shrink 0.1% in 2026.
• Simandou arrives next door. Guinea’s giant mine began shipping in late 2025. Its high-grade ore competes in the same premium market as Marampa’s, and analysts expect it to cap prices for high-grade ore as it ramps up.
• Fuel and freight. Vale’s chief executive says war-driven energy and shipping costs have pushed about 10% of global seaborne iron ore supply into losses, Bloomberg reported. Marampa runs on diesel generators, and every tonne it sells pays ocean freight to distant steel mills.

The company’s own letter adds a fourth factor: the mine never ran consistently at the rate its cost base was built for.

What it means for Lunsar

The heaviest and fastest impact lands on Lunsar and the Marampa and Maforki chiefdoms, where the mine is the dominant employer. The workforce had roughly doubled since 2022 before the cuts began.

• Jobs and household income. About 925 jobs were reportedly at risk even before the suspension, mostly non-permanent staff. Each wage supports an extended family.
• Local business. Suppliers, transporters, traders, landlords and food sellers depend on mine payrolls. Their losses won’t show up in redundancy numbers.
• Community Development Fund. The fund receives 1% of export revenue. No shipments means no new money, after payouts of US$1.7 million in 2023 and US$3.7 million paid in January 2025.
• Environment and safety. The company has committed to keep managing tailings and water. That promise will need watching if the crew shrinks and fuel is rationed.

What it means for Sierra Leone

Iron ore made up about 69% of Sierra Leone’s US$1.3 billion in mineral exports in 2025, on Ministry of Mines figures.

• Export earnings and the leone. Fewer dollar receipts add pressure on the leone and on the cost of imported rice and fuel.
• Government revenue. The state loses 3.5% iron ore royalties plus income and payroll taxes, at a time when interest payments absorbed 42% of government revenue in 2025.
• The 10% stake. As a shareholder, the Government shares in any loss of value and has a seat in restart decisions.
• An investor signal. Marampa is the country’s flagship U.S. investment. How the suspension is handled will be read closely by other investors, including the diaspora.

The last time Marampa shut down, in 2019, it ended in a licence cancellation and two years of arbitration. This time the company filed formal notice and pledged to protect its licence, which suggests both sides want to avoid a repeat.

Open questions: how many workers will stay on site, what severance applies, and whether community projects already under way will be fully paid.

Join the conversation: Inside The Mine

Marampa’s story raises a bigger question: how do more Sierra Leoneans share in the value of the country’s mines, in good years and bad?

That is the focus of “Inside The Mine: No Sierra Leonean Left Behind”, a panel at the Sierra Leone Diaspora Investment Conference in Freetown. Industry regulators and mining executives will map out how local entrepreneurs and diaspora investors can use local content rules, win subcontracting deals and build joint ventures across extraction, supply chain and logistics.

• When: Tuesday, 29 December 2026, 12:30 PM
• Where: Radisson Blu Mammy Yoko Hotel, Freetown
• Pass: Conference Pass, $125, covers both days with breakfast and lunch

Get your tickets

Programme and session times are subject to change.