Russia's ProfMedia and DST as well as China's Tencent have submitted binding offers to buy AOL's instant-messaging service ICQ, business daily Vedomosti reported on Tuesday.

AOL was spun off from Time Warner Inc last December and is currently selling non-core assets, including ICQ which is reportedly valued at up to $300 million.

Vedomosti quoted unnamed sources as saying the three companies had submitted binding offers. It said DST and ProfMedia declined to comment, while AOL and Tencent did not return calls.

(Reporting by Maria Kiselyova; Editing by Mike Nesbit)