S&P Global Ratings maintained the AA(sf) rating on River Funding No. 4's class 1 notes, according to a Monday release.

The affirmation follow a decline in the notes' commitment amount to HK$1.7 billion from HK$2 billion.

S&P said the current credit enhancement level is enough to anchor the class 1 notes in its present rating.

A group of PrimeCredit-originated consumer loans backs the notes.