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If you want to submit a complaint or appeal in connection with the services provided by the Certification Body, please visit our facilities or contact us to know the relevant procedures,
Address your complaint to any UL employee or representative at the following contact details:
UL de México, S. A. de C. V.
Blas Pascal, No. 205, Piso 2, C. P. 11510
Col. Los Morales, México, D.F.
Ph: (52) 55-3000-5400
Fax: (52) 55-3000-5491
Or email to COMEXICOINBOX@ul.com