Heart and Soul
The company that built Amtrak is a global corporation named Siemens, based in Munich, Germamy. They have a sister company named Yunex Traffic. [Y]
https://www.bizjournals.com/sacramento/news/2021/07/07/amtrak-awards-siemens-train-order.html
https://www.mobility.siemens.com/global/en.html
Siemens Germany & Iran pdf files.
https://assets.new.siemens.com/siemens/assets/api/uuid:946cad66-5d2f-4858-a080-81e9b11022f7/166-160351-db-er24pc-us-final.pdf
https://assets.new.siemens.com/siemens/assets/api/uuid:623d14cd-e56b-4a96-84c0-d7d7b7727847/mo-vectron-technical-brochure-en.pdf
https://assets.new.siemens.com/siemens/assets/api/uuid:a4e61a7938450564557737bc67de59bdf2293ea3/smartron-broschuere-square-en-preview.pdf
Siemens Amtrak - US & Canada
"The Islamic Republic of Iran Railways
operates successful 150 ER24PC loco motives for passenger services."
https://assets.new.siemens.com/siemens/assets/api/uuid:946cad66-5d2f-4858-a080-81e9b11022f7/166-160351-db-er24pc-us-final.pdf