Plastic bag tax (Ireland and China edition)

Three days ago, I talked about how responsive consumers are to a slight change in incentives, in this case a 5 cent tax on plastic bags in Washington D.C. My friend Alan Perlman, who runs the9to5alternative.com and travels a lot, pointed out that some other countries are way ahead of Washington D.C..

In 2002, Ireland imposed a 15 cent tax per plastic bag and saw similar positive results.  Bag consumption plunged 90%, from an annual 1.2 billion bag to less than 100 million in the initial year.  Going one step further, China, in 2008, banned thin plastic bags and taxed heavier ones.  The ban prevents the production of 40 billion plastic bags, equivalent to 37 million barrels of oil, annually and has decreased other plastic bag use by 66%.

Rwanda, Eritrea, Hong Kong, and South Africa have either banned or taxed plastic bags.  Anyone have information on other countries, states, or cities?