Summary of LYONDELLBASELL INDUSTRIES N.V.

Item 1.01 Entry into a Material Definitive Agreement; Item 1.02 Termination of a Material Definitive Agreement.

On May 4, 2012, LyondellBasell Industries N.V. (the "Company") entered into a $2.0 billion five year revolving credit facility (the "Senior Credit Facility") pursuant to a Credit Agreement among the Company and LYB Americas Finance Company, a wholly owned subsidiary of the Company, as Borrowers, the Lenders from time to time party thereto, Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer, Deutsche Bank Securities Inc., as Syndication Agent and the other parties thereto (the "Credit Agreement"), that allows for euro and dollar denominated letters of credit and loans. The Company may seek to increase the aggregate amount of the commitments, provided, that at the relevant time, no default or event of default has occurred and is continuing. The Company may request one or more Lenders or other persons reasonably acceptable to make the commitment for the increase (but no Lender is required to commit).

The Senior Credit Facility is currently guaranteed by each wholly owned U.S. subsidiary of the Company that is a guarantor of the Company's 6% Senior Notes due 2021, but only for so long as such subsidiary guarantees such notes.

The agreement contains customary representations and warranties of each of the Company and LYB Americas Finance Company as borrowers. The agreement also requires the Company to maintain a minimum consolidated interest coverage ratio and a maximum consolidated leverage ratio. The interest coverage ratio, subject to certain conditions, will cease to apply when the Company receives investment grade ratings of its long-term unsecured debt. The agreement contains certain restrictive covenants regarding additional indebtedness, including secured and subsidiary indebtedness, and mergers, and sales of assets.

The agreement contains customary events of default, including nonpayment of principal when due, nonpayment of interest or other amounts after a customary grace period, violation of covenants (subject, in the case of certain of such covenants, to a thirty day grace period), incorrectness of representations and warranties in any material respect, cross default to indebtedness, bankruptcy or other insolvency events of the Company or its material subsidiaries (with a customary grace period for involuntary events), material monetary judgments, ERISA events, actual or asserted invalidity of loan documents and changes of control.

A copy of the Credit Agreement is included in this Form 8-K as Exhibit 10.1 and incorporated herein by reference. The summary description of the Credit Agreement in this report is qualified in its entirety by reference to Exhibit 10.1.

In connection with the execution of the new Senior Credit Facility, on May 4, 2012, the Company terminated its Senior Secured Asset-Based Credit Agreement, dated as of April 8, 2010 and as amended to date, among the Company, certain of its subsidiaries and Citibank, N.A., as Administrative Agent (the "ABL Facility"), pursuant to its rights thereunder. All amounts owed by the borrowers under the ABL Facility have been repaid and the commitments under the ABL Facility have been terminated.