The United States on Friday imposed sanctions on a biometrics company that assisted voting in Venezuela's parliamentary elections, which President Donald Trump's administration says were rigged.

Ex-Cle C.A., the Venezuelan subsidiary of a company by a similar name in Argentina, has "millions of dollars of contracts" with President Nicolas Maduro's government, which Washington and most Western and Latin American nations consider illegitimate, US officials said.

In a who's who of US adversaries, the Treasury Department said Ex-Cle C.A. bought thousands of voting machines from China, flew them into Venezuela through Iran and paid via the Russian financial system.

Maduro's reliance on Ex-Cle C.A. and Chinese company CEIEC "to rig the electoral processes should leave no doubt that the December 6 legislative elections were fraudulent and do not reflect the will of the Venezuelan people," Secretary of State Mike Pompeo said.

US officials did not assert cheating in the tabulation of the votes, but a number of international observers said the polls were unfair, with Maduro in control of a new electoral council.

A poll worker waits for voters in Caracas on December 6, 2020 for parliamentary elections boycotted by the opposition and widely criticized internationally
A poll worker waits for voters in Caracas on December 6, 2020 for parliamentary elections boycotted by the opposition and widely criticized internationally AFP / Cristian Hernandez

The opposition boycotted the vote and lost control of the National Assembly, the only branch of government not in Maduro's control.

The Venezuelan president slammed the US sanctions.

Pompeo imposed "stupid sanctions like the idiot that he is, as he is on his way out, against the company and the businessmen who manufactured the machines so that the people of Venezuela could vote," Maduro said.

Ex-Cle has also operated in Panama, winning a contract to implement a biometric security system, according to the company's website.

The Treasury Department also imposed sanctions on two company executives, one Venezuelan and the other a dual Argentine and Italian national, freezing any assets they hold in the United States.

Trump has alleged with no evidence that US elections in which he lost were rigged, with his legal team sharing a debunked conspiracy theory of Venezuelan involvement.