The accord, which is still pending corporate and government approval, would see Ontario Teachers' Pension Plan Board and Canada Pension Plan Investment Board up their holdings by 8.4% and 1.1% respectively, bringing each of their total holdings to 24.8%, IDEAL said in a statement to the Mexican stock exchange.

IDEAL shares have not registered movements on Mexico's stock market since Oct. 15, according to data from Refinitiv Eikon.

(Reporting by Sharay Angulo Writing by Laura Gottesdiener; Editing by Mark Potter)