The United States started the investigation for reasons of national security related to electrical steel
the U.S. Department of Commerce initiated a safeguard investigation on grounds of national security in respect of the electrical steel (sheet and strip cores for transformers, electric transformers and chokes), regardless of the country of origin and exports. Notice of initiation of an investigation published in the Federal register United States may 19, 2020.
Comments on the investigation can be placed on a Federal website USA on discussion of drafts of regulatory legal acts (Federal eRulemaking Portal, investigation No. BIS-2020-0015) to June 9, 2020.
"Guaranteed internal supply of these products allows the United States to respond to major disruptions in the supply of electricity affecting the civilian population, critical infrastructure and defense capabilities of U.S. industrial production", - noted in the Ministry of Commerce of the United States.