v3.26.1
Cover
Apr. 14, 2026
Document Type 8-K
Amendment Flag false
Document Period End Date Apr. 14, 2026
Entity File Number 001-42474
Entity Registrant Name Ribbon Acquisition Corp.
Entity Central Index Key 0002035016
Entity Tax Identification Number 00-0000000
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One Central Park Tower LaTour Shinjuku, Room 3001,
Entity Address, Address Line Two 6-15-1 Nishi Shinjuku
Entity Address, City or Town Shinjuku-ku, Tokyo
Entity Address, Country JP
Entity Address, Postal Zip Code 160-0023
City Area Code +81
Local Phone Number 90-8508-3462
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false
Class A Ordinary Shares  
Title of 12(b) Security Class A Ordinary Shares
Trading Symbol RIBB
Security Exchange Name NASDAQ
Units  
Title of 12(b) Security Units
Trading Symbol RIBBU
Security Exchange Name NASDAQ
Rights [Member]  
Title of 12(b) Security Rights
Trading Symbol RIBBR
Security Exchange Name NASDAQ