Prometey Central Scientific Research Institute Of Structural Materials () is a research institute based in Saint Petersburg, Russia.
The Prometey Institute develops and produces advanced alloys and conducts research in metallurgical and welding techniques. Product lines and activities include heavy armor research and development, metallurgical research for shipbuilding, defectoscope quality control measures, titanium-alloy for submarine hull construction, non-magnetic steels and alloys for anti-submarine vessels, high-strength hull steels, advanced propulsion system materials, aluminum alloys and titanium alloys for machinery system applications.
On December 22, 2022, due to RussiaâÂÂs invasion of Ukraine, the enterprise was added to the U.S. sanctions list targeting Russian naval entities âÂÂin response to PutinâÂÂs unprovoked war in UkraineâÂÂ. The enterprise is also included in the sanctions lists of Ukraine and Australia.