Русско-англо-русский юридический словарь

They often reward them for being loyal by offering them a lower interest rate than they would normally charge. This reduced/lower rate of interest is called a 'preferential rate'. Normally at most, a 'preferential interest rate' on a loan is a couple of percentage points lower than a bank's 'standard interest rate'. (Blair English)

Trafigura said in a statement that the platform will enable the trading house to access finances at a preferential interest rate and pay a premium to low-carbon aluminium producers. (Reuters)