TMB has a policy of inclusion and sustainability that includes the performance of its suppliers to ensure quality and fairness in the treatment of all its people and avoids any kind of discrimination, as Raque Diaz Caro, director of Social Responsibility, Gender and Diversity of the entity, explains.

"TMB includes a specific section on general obligations in environmental and social matters, which specifies the supplier's obligation to be aware of and undertake to comply with: The environmental regulations in force. TMB's environmental policy and application procedures. The provisions in force on labour relations, social security and occupational risk prevention. Finally, in 2020 there were no complaints of discrimination.