Yes, the AFR has mentioned that, too, but Anglo are apparently thought of as the "never bidder" that are always in the data room, but seldom bring home the prize.
Citic say it is too early to reveal their position on making a counterbid:
http://www.steelguru.com/raw_material_news/CITIC_Group_undecided_on_Macarthur_counterbid/221203.html