On 24 February, OFAC issued a determination that section 1(a)(i) of E.O. 14024 (addresses national security threats posed by specified harmful foreign activities of the Russian Federation) shall apply to the metals and mining sector of the Russian Federation economy; and hence, that any person determined to operate or have operated in this sector shall be subject to sanctions.
https://home.treasury.gov/system/files/126/determination_02242023_eo14024.pdf