Around 4.5% of all bitcoin mining takes place in Iran, allowing the country to earn hundreds of millions of dollars in cryptocurrencies that can be used to buy imports and lessen the impact of sanctions, a new study has found.
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At its current level of mining, Iran's bitcoin production would amount to revenues close $1 billion a year, according to figures from blockchain analytics firm Elliptic.
Iranian officials could not immediately be reached for comment.
The country's central bank prohibits the trading of bitcoin and other cryptocurrencies mined overseas, although the currencies are widely available on the black market, according to local media reports.
Iran officially recognized crypto mining as an industry in recent years, offering it cheap power and requiring miners to sell their mined bitcoins to the central bank. The prospect of cheap power has attracted more miners, particularly from China, into the country. Teheran allows cryptocurrencies mined in Iran to pay for imports of authorized goods.
"Iran has recognized that bitcoin mining represents an attractive opportunity for a sanctions-hit economy suffering from a shortage of hard cash, but with a surplus of oil and natural gas," the study finds.