** Shares of American Rare Earths rise 13.7% to A$0.29, set for best day since Aug 12 if current gains hold
** Anson Resources gains as much as 5.2% to A$0.081
** The companies say the United States has backed their projects with up to $786 mln in debt funding
** American Rare Earths says it received letter of interest for a debt funding package of up to $456 mln to support construction at its Halleck Creek Project
** Anson Resources says it got $330 mln to finance the construction of lithium production plant in Utah
** ASN stock down 44.2% YTD, while ARR up ~82% so far this year
(Reporting by Ayushman Ojha in Bengaluru)
((Ayushman.ojha@thomsonreuters.com;))