By all outward appearances, Hatam Khatoun Nema was a small-time money changer working from a nondescript office in Järfälla, a workaday Stockholm suburb.

In reality, the Swedish-Iranian businessman ran an obscure Hong Kong company, HMEA CO., LIMITED, that laundered hundreds of millions of dollars through a web of shell companies and businesses stretching from Singapore to Panama.

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Read the full investigation at the Organized Crime and Corruption Reporting Project.