The US Treasury Department in a statement said on Thursday that it had imposed sanctions on Shahid Meisami Group and its director, making baseless accusations against them.
The Treasury accused them of being involved in a so-called chemical weapons research program and linked to the Iranian Organization of Defensive Innovation and Research, which is sanctioned by Washington.
"Iran’s development of weapons of mass destruction is a threat to the security of its neighbors and the world,” Treasury Secretary Steven Mnuchin said in the statement.
He added that the United States will continue to counter any efforts by the Iranian government “to develop chemical weapons” that may be used by it or “its proxy groups to advance their malign agenda.”
Iran has denounced the US for adopting a double-standard policy toward the use of Weapons of Mass Destruction (WMDs), reminding Washington of its support for slain Iraqi dictator Saddam Hussein in his war on Iran in the 1980s.
Leader of the Islamic Revolution Ayatollah Seyyed Ali Khamenei has issued a fatwa (religious decree), which bans the development and production of weapons of mass destruction, including nukes, as contrary to Islam.