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Cover
 12 Months Ended
Dec. 31, 2022
Entity Addresses [Line Items]  
Document Type S-4/A
Amendment Flag true
Amendment Description AMENDMENT No. 3
Entity Registrant Name Energem Corp.
Entity Central Index Key 0001879373
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One Level 3, Tower 11, Avenue 5, No. 8
Entity Address, Address Line Two Jalan Kerinchi, Bangsar South
Entity Address, City or Town Kuala Lumpur
City Area Code (60)
Local Phone Number 3270 47622
Entity Filer Category Non-accelerated Filer
Entity Small Business true
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 Level 3, Tower 11, Avenue 5, No. 8
Entity Address, Address Line Two Jalan Kerinchi, Bangsar South
Entity Address, City or Town Kuala Lumpur
Contact Personnel Name Swee Guan Hoo