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OHL would remain the majority shareholder in the company, Reuters reported.
OHL Mexico also plans to sell subsidiary Conmex, which operates state highways in the country.
Proceeds raised would be used to help finance investment in existing concessions at the pre-construction phase and for future concessions.
OHL reported net income of 87.5mn euros (US$109mn) for the first nine months, down 41% year-on-year.
The group controls some 64% of OHL Mexico.