(1) | Reflects new accounting rules and regulations established by the Comisión Nacional Bancaria y de Valores (National Banking and Securities Commission, or the “CNBV”), since 1996. On January 10, 1997, Circular 1343 came into effect for all Mexican banks, including Banobras. The purpose of Circular 1343 was to bring the accounting principles applicable to Mexican banks closer to international accounting standards and generally accepted accounting principles in the United States. This change resulted in changes to the Bank’s financial statements. In particular, Circular 1343's standards required the reclassification of certain assets and liabilities (in some cases, decreasing memoranda account amounts); the marking-to-market of certain financial instruments; accounting for deferred taxes; acknowledgment of inflationary effects on various assets; and changes in the accounting treatment of past-due interest and principal on outstanding loans. On September 12, 1997, the CNBV released Circular 1375, which effected several additional changes in the Mexican accounting principles applicable to Mexican banks. Circular 1375 was further supplemented by Circular 1410, issued July 31, 1998, with the intent of standardizing information prepared by Mexican banks. Circular 1410 resulted in substantial changes in the presentation of financial statements by Mexican banks, including Banobras, among which is the separation of operating results from non-operating results. The changes effected by Circular 1375 and Circular 1410 do not allow the comparison of the Bank’s results of operations for periods ending after December 31, 1996 with periods ending prior thereto. On October 14, 1999, the CNBV issued Circular 1448, taking effect beginning with fiscal year 2000. Circular 1448, together with Circular 1488, issued October 30, 2000 and applicable beginning with fiscal year 2001, are intended to further consolidate and update the accounting criteria applicable to Mexican banks. To conform to various further changes in generally applicable accounting rules at both the domestic and international levels, the accounting rules applicable to banks required adjustment, including to add disclosure rules for interim financial information; to introduce the concept of integral profit; to modify the criteria for classifying and recording of certain categories of loans as past due (to be phased in during the period from 2001 to 2003), as well as to develop rules for the registration, valuation, presentation and disclosure of investments in securities, derivatives, loan portfolio, endorsements and related parties. Circular 1448 superseded Circular 1343, subject to a few exceptions, and replaced Circular 1375. |