Fresh scrutiny has emerged over Guyana’s mining sector following the circulation of images on social media showing Brazilian businessman Rodrigo Martins de Mello — also known as “Rodrigo Cataratas” — in apparent engagements with senior government officials, raising questions about investor vetting, transparency and oversight within the country’s rapidly expanding extractive industry.
Photographs show the businessman participating in meetings attended by Minister of Natural Resources Vickram Bharrat, representatives of the Guyana Geology and Mines Commission (GGMC) and Prime Minister Mark Phillips. Additional images depict mining equipment and excavators being transported, accompanied by social media posts referencing a proposed US$10 million mining venture. The engagements are reported to have occurred in 2023 and again in late 2025.
Brazilian media outlets have previously reported on legal proceedings involving Martins de Mello in connection with alleged illegal gold mining in protected Indigenous territories within the Amazon. Reports indicate he has faced investigations and court action related to organised mining operations, though this publication has not independently verified the current status of those matters. A source in Brazil told Nightly News that “he was convicted,” but no official documentation was immediately available.
Local sources indicate the businessman had previously been connected to proposed investment interests in the Marudi mining district in Region Nine, an area where any foreign operation would be subject to strict legal and regulatory requirements. The also stressed that foreign mining ventures cannot proceed independently, noting that collaboration with Guyanese landholders and full compliance with licensing approvals are mandatory
There are also indications of possible disagreements between the Brazilian national and a Guyanese business associate, although details of that dispute remain unclear.
Guyana’s mining sector operates under a licensing and regulatory framework overseen by the GGMC, with foreign participation subject to domestic laws, environmental safeguards and land ownership requirements.
Governance and transparency concerns
The resurfacing of the images has reignited broader debate about governance and oversight within Guyana’s expanding extractive industries. President Irfaan Ali has repeatedly pledged to strengthen transparency and fight corruption as the country manages its growing oil and mining wealth.
However, international watchdog Transparency International has previously flagged corruption risks in Guyana. Analysts argue that recurring controversies involving foreign investors and politically connected actors have fuelled perceptions that elements within the governing People’s Progressive Party/Civic (PPP/C) maintain an affinity for questionable associations and practices viewed as inconsistent with stated anti-corruption commitments.
Government officials have not publicly commented on the specific images or on any formal relationship between Martins de Mello and state agencies.
Observers say the situation underscores the importance of due diligence, transparency and public disclosure in engagements between officials and foreign investors, particularly as Guyana’s mining sector continues to attract international interest amid the country’s broader resource boom.
