v3.26.1
Cover
12 Months Ended
Mar. 31, 2026
Entity Addresses [Line Items]  
Document Type F-1
Amendment Flag false
Entity Registrant Name IMC RARE EARTHS LTD
Entity Central Index Key 0002098395
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One Avenida Paulista, 1765, 7th Floor
Entity Address, Address Line Two São Paulo
Entity Address, City or Town São Paulo
Entity Address, Country BR
Entity Address, Postal Zip Code 0311-930
Country Region +55
City Area Code (84)
Local Phone Number 99173-2523
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false
Business Contact [Member]  
Entity Addresses [Line Items]  
Entity Address, Address Line One 850 Library Avenue
Entity Address, Address Line Two Suite 204
Entity Address, City or Town Newark
Entity Address, State or Province DE
Entity Address, Postal Zip Code 19711
City Area Code 302
Local Phone Number 738-6680
Contact Personnel Name Puglisi & Associates