KAMPALA, Uganda — A sprawling web of deceit stretching from the backstreets of Kampala to the high-rises of Dubai has been unmasked, revealing an international gold fraud syndicate that has fleeced foreign investors of millions. At the heart of the investigation are two firms now under intense scrutiny: Uganda’s Bukasa-Kampala Gemstone Refinery Ltd. and the Congo-based Crystal Mining Congo Sarl.
Fresh documents obtained by reporters detail a clinical, high-stakes operation where the promise of African gold serves as the ultimate bait. The scheme relies on a “hook, line, and sinker” strategy involving professional-grade contracts, staged meetings, and a revolving door of shadowy export facilitators.
The trail begins with Joshua Rosborough, a U.S. national and self-described “export facilitator” operating under Tier 1 Gold Refiners (SL) Ltd. In 2023, investigators say Rosborough lured Joanna Fournilier and her husband into the market with the promise of lucrative margins in Uganda’s booming gold sector.
What followed was a masterclass in financial manipulation. After an initial investment of $150,000, a September 2024 Zoom meeting with Tier 1 CEO Jay Rosborough solidified the deal. On Sept. 20, 2025, investors wired $166,158 for two kilograms of gold, along with $9,000 in “service fees.”
The trap snapped shut shortly after. Rosborough allegedly informed the group that Uganda Revenue Authority regulations prohibited such a small shipment, forcing the investors to scale up to 25 kilograms to “save” their initial capital.
On Sept. 18, 2025, a Sales and Purchase Agreement was signed in Dubai, involving a global cast of actors:
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The Seller: Thomas Loko Mputu, representing Crystal Mining Congo Sarl.
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The Agent: Hellen Adrawa, director of Uganda’s Gemstone Refinery Ltd.
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The Facilitator: Joshua Rosborough of Tier 1 Gold Refiners.
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The Buyer: Daniel James Hahn, representing Spain-based Metales Y Rocas Barcelona 2011 S.L.U.
Despite airtight paperwork and terms totaling $1.95 million, the gold never materialized. Total documented losses currently sit at $176,000, but investigators believe this is only a fraction of the syndicate’s reach.
When confronted, the primary players shifted into damage control. Rosborough claimed he was a fellow victim of Gemstone Refinery, while Hellen Adrawa flatly denied the transaction ever occurred. “I don’t have any record of this,” Adrawa said, demanding physical receipts that investors claim prove the refinery’s direct involvement.
This investigation coincides with a parallel explosion of fraud in the capital. Muhammad Ali, a former security manager, was recently remanded to prison for a separate $3.5 million fake gold scheme.
Authorities have identified a chillingly consistent pattern:
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The Bait: Small, successful “test” transactions to build trust.
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The Theater: Genuine gold samples tested in real refineries and stored in high-security facilities.
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The Vanishing Act: Once the “big hit” payment is secured, the gold, the facilitators, and the offices disappear.
With Uganda exporting $3 billion in gold annually, security agencies including the State House Anti-Corruption Unit and the CID are now racing to map these “organized criminal enterprises.” As the probe widens, the central question remains: Are these facilitators victims of a deeper “gold mafia,” or the architects of the most sophisticated fraud in the region’s history?
