It says the ethnicity of perpetrators is "shied away from" and still not recorded in two-thirds of cases, meaning it is not possible to draw conclusions at a national level.
However, the report says there is enough evidence from police data in three areas - Greater Manchester, South Yorkshire and West Yorkshire - to show "disproportionate numbers of men from Asian ethnic backgrounds amongst suspects for group-based child sexual exploitation".
It adds that the significant number of perpetrators of Asian ethnicity identified in local reviews and high-profile prosecutions across the country also warrants further examination.
The report says more effort is needed to explore why it appears perpetrators of Asian and Pakistani ethnicity are disproportionately represented in some areas.