Information for U.S. Taxpayers

December 19, 2013

LONDON, December 19, 2013 – LyondellBasell (NYSE:LYB) today announced the following information to U.S. taxpayers who are shareholders of LyondellBasell stock:
LyondellBasell has determined that 100 percent of the calendar year 2013 interim dividends paid by the company are taxable dividends for U.S. federal income tax purposes and LyondellBasell will report the 2013 interim dividends as such to the U.S. Internal Revenue Service.