Arnaud Mimran, a name synonymous with audacious financial malfeasance in France, stands as the architect behind one of the most egregious frauds to ever shake the European Union’s nascent carbon market. His conviction for orchestrating a €283 million carbon tax fraud, often dubbed “the scam of the century” by French media, has cemented his legacy as a figure of both cunning and criminality. Beyond the staggering financial figures, Mimran’s story is interwoven with a darker tapestry of alleged violence, linking him to a series of unsolved murders that add a chilling dimension to his profile.
Who Is Arnaud Mimran?
Born into a privileged Parisian family on February 11, 1972, Arnaud Mimran initially carved out a reputation as a shrewd stock market trader and financial broker. His father, Jacques Mimran, was a prominent figure in construction, and his mother an army secretary, providing a backdrop of stability and wealth. Mimran’s early aptitude for finance was evident; he began investing as a teenager and later earned a postgraduate degree in the field. In 1998, he founded 3ATrade, a brokerage firm he would later sell for a reported €30 million. This early success painted a picture of a legitimate, high-flying entrepreneur, a persona further burnished by his presence in high-stakes poker circles. However, beneath this veneer of legitimate success lay a history of legal troubles, including a stock market affair in the US in 2000 and a tax evasion conviction in 2007, hinting at a darker ambition.
The Scheme Exposed
The carbon tax fraud, at the heart of Mimran’s downfall, was a sophisticated exploitation of the European Union Emissions Trading System (EU ETS). Designed to combat climate change by allowing companies to trade CO2 emission quotas, the system inadvertently created a fertile ground for fraud. Mimran, alongside associates Marco Mouly and Samy Souied, masterminded a “carousel” VAT fraud. This involved purchasing carbon quotas VAT-free in one EU country, then reselling them in France—or other nations that levied VAT—at an inflated price, inclusive of the tax. Crucially, the fraudsters would then “forget” to remit the collected VAT to the French state, instead siphoning the funds into a labyrinth of offshore accounts. The embezzled VAT was then reinvested into buying new quotas, perpetuating the cycle. This scheme ran for approximately seven months, from November 2008 to June 2009, before French authorities, alerted by widespread suspicions, exempted carbon quota transactions from VAT, effectively shutting down this particular avenue of crime.
Following the Money
The scale of Mimran’s operation was immense. Through the “Crépuscule” investigation alone, he and his cohorts were found responsible for defrauding the French state of €283 million in VAT taxes. Mimran himself reportedly netted €21 million from an initial investment of €8-9 million. The wider impact on the French treasury was staggering, with total losses from carbon tax fraud between 2008 and 2009 estimated at €1.6 billion, and some experts suggesting it could be as high as €3 billion. Across the entire European Union, the scam is believed to have siphoned €5-6 billion from public budgets. The money, once embezzled, embarked on a global journey through phony offshore companies and straw managers, traversing numerous accounts in countries like Cyprus, Dubai, Geneva, Hong Kong, and Israel, a testament to the sophisticated money laundering operation that underpinned the fraud. French authorities later seized Mimran’s assets, including a luxury apartment valued at €5.5 million and an HSBC France account holding €7.7 million.
The Investigation
The unraveling of this elaborate fraud began with the keen eye of customs authorities. The National Judicial Custom Department spearheaded the “Crépuscule” investigation, a painstaking eight-year endeavor involving four examining judges. Their work meticulously exposed the intricate web of money laundering that stretched across fifteen countries on four continents. The sheer scale and audacity of the fraud eventually raised red flags, leading to the crucial decision by French authorities in June 2009 to exempt carbon quota transactions from VAT, a move that brought the specific scheme to an end. The investigation revealed significant vulnerabilities, particularly within the BlueNext stock exchange tool used for trading CO2 quotas, which lacked robust controls. For instance, a company named “Crépuscule” itself was accredited as a broker despite its founder being under investigation and having previous convictions for various frauds, a glaring oversight that allowed the scheme to flourish.
Victims Left Behind
The primary victim of Mimran’s carbon tax fraud was the French state, and by extension, its taxpayers. The €283 million directly attributable to his scheme, and the billions lost across the EU, represent funds diverted from public services and essential infrastructure. However, the shadow of the carbon tax scam extends far beyond financial losses, touching upon a series of violent deaths. Four murders are believed to be connected to this fraud: Amar Azzoug (April 30, 2010), Mimran’s accomplice Samy Souied (September 14, 2010), his former father-in-law, billionaire Claude Dray (October 25, 2011), and Albert Taieb (April 8, 2014). Arnaud Mimran has been indicted for the murders of Souied and Dray, though he denies all accusations and benefits from the presumption of innocence for these charges. These tragic deaths underscore the brutal realities that can emerge from high-stakes financial crime, transforming abstract monetary losses into profound human suffering.
“The carbon tax fraud was not merely a financial crime; it was a sophisticated assault on the integrity of European financial systems, leaving a trail of economic devastation and, allegedly, violent death.”
Justice & Consequences
Arnaud Mimran’s legal journey has been long and complex. Following his arrest in early 2015, he was convicted on July 7, 2016, and sentenced to eight years in prison and a €1 million fine for the carbon tax fraud. He completed this sentence in May 2021. However, his incarceration did not end there. In June 2021, he received an additional 13-year prison sentence for the 2015 kidnapping and extortion of a Swiss banker, a conviction upheld on appeal in December 2022. Mimran is currently incarcerated at the Le Havre penitentiary center. His legal battles are far from over; in April 2021, he was indicted for the murders of Samy Souied and Claude Dray, and he is expected to face trial for three murders committed between 2010 and 2014. The recovery of assets, including his luxury apartment and seized bank account, represents a partial restitution for the state, yet the full extent of the embezzled funds remains elusive.
Lessons Learned
The Arnaud Mimran case offers critical insights into the vulnerabilities within complex financial systems and the red flags that, if heeded, could prevent similar schemes. The initial inclusion of VAT on carbon quota transactions created an exploitable loophole, highlighting the need for rigorous pre-emptive risk assessment in new financial markets. The lack of robust checks on platforms like BlueNext, which allowed a company founded by an individual with prior fraud convictions to operate, underscores the necessity of stringent due diligence for all market participants. Furthermore, the sophisticated money laundering networks employed by Mimran and his associates, involving numerous offshore entities and cross-border transfers, emphasize the challenge of tracing illicit funds and the need for enhanced international cooperation among financial intelligence units. The consistent presence of individuals with histories of legal troubles, such as Mimran’s prior convictions and his associates’ backgrounds in various scams, serves as a stark reminder that past behavior can be a strong indicator of future risk. Investors and regulatory bodies alike must remain vigilant against schemes that promise unusually high returns or involve opaque financial structures. Always scrutinize the legitimacy of the underlying asset and the transparency of the transaction process. For more information on preventing financial crime, explore our related fraud investigations.




