There was an article in the 2008.06.19 edition of Nikkei Shimbun that says that by the end of 2009, Ajinomoto will start labeling all its seasoning products and frozen foods with their carbon footprint. It also says that Ajinomoto will be the first Japanese company to do so, but in a 2008.06.23 Kyodo News article, it states that Sapporo Beer will start labeling its "Black Label Beer" brand 350 ml cans with their carbon footprint starting next year.
I am not sure who wins, but these moves will likely put pressure on other companies to follow suit.
