source:[1] US to back Korea Zinc’s $7.4 billion critical minerals plant - Mining.com (https://www.mining.com/web/us-to-back-korea-z ...)[2] US to Back Korea Zinc’s $7.4 Billion Critical Minerals Plant - Yahoo Finance (https://finance.yahoo.com/news/us-back-korea- ...)[3] Korea Zinc plans $7.4 billion US minerals refinery with Washington's backing - Reuters (https://www.reuters.com/world/asia-pacific/ko ...)