NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) is pleased to announce the assignment of preliminary ratings to 17 classes of UBS 2018-C12 (see ratings list below), a $804.9 million CMBS conduit transaction collateralized by 65 commercial mortgage loans secured by 75 properties. The collateral properties are located in 24 states, with three state exposures each representing more than 10.0% of the pool balance: California (12.2%), Texas (11.9%), and Virginia (11.3%). The pool has expo