Fitch Ratings believes the nation's fiscal problems slow economic growth, creating a moderate drag on sector expansion this year.
Mexico's main social security systems, IMSS and ISSSTE, are set to spend well over half of all funds budgeted for 2019 on pension benefit payments, with pressure on the system rising.
Under the regime, originally introduced as a temporary measure, private pension fund members can obtain their pension early if unemployed for more than a year.
Lawmakers approve draft legislation that gradually increases deductions for social security coverage and pension savings to 17% of annual earnings.
The company's CFO has received offers from competing firms, according to a source.