The Australian Competition and Consumer Commission is taking feedback on the AUB acquisition of Aon’s One Underwriting.

A questionnaire asks respondents to outline concerns, including if AUB’s agencies and One Underwriting are close competitors with few alternatives, or if one is a major supplier to competitors of the other.

Aon said last week One Underwriting would be best positioned for growth under an owner focused on underwriting agency businesses.

AUB Agencies CEO Denis Morrissey says the transaction would bring an expanded suite of products, capacity partnerships and specialist offerings to AUB, and One Underwriting is highly complementary to the 360 Underwriting and Sura brands.

Feedback must be submitted by Monday. The regulator’s initial assessment of the deal is due by December 4.