PAYMENT FORMS Payments should be made exclusively in US dollars in one of the following accounts: OPTION 1 BBVA-Bancomer OPTION 2 Banorte Beneficiary’s Name: CENTRO NACIONAL DE METROLOGÍA CENTRO NACIONAL DE METROLOGÍA Beneficiary’s Account: 012680001523190202 072680001684094779 Beneficiary’s Bank Name: BBVA-BANCOMER-MÉXICO BANCO MERCANTIL DEL NORTE, S.A. Swift code: BCMRMXMMPYM MENOMXMT Intermediary or Correspondent bank (if necessary) If paying through BBVA-Bancomer If paying through Banorte Intermediary bank’s name: JP MORGAN CHASE BANK, NEW YORK, NY THE BANK OF NEW YORK, NEW YORK, NY Intermediary’s Aba routing: 021000021 021000018 Intermediary’s Swift code: CHASUS33 IRVTUS3N