Mrs. Co initially served as the Vice-Chairman of the Company from 1998 until her election as Chairman in 2023. She is also the Vice-Chairman of Cosco Capital, Inc., and a member of the Board of Directors of the Philippine Bank of Communications (PBCOM), which are both PSE-listed companies.

Concurrently, she holds the following positions in other companies: Chairman and President of Cosco Price, Inc., Chairman of Kareila Management Corporation, Tower 6789 Corporation, President of Makabayan Holdings Incorporated, and Director of Bellagio Holdings, Inc., Blue Ocean Holdings, Inc., Canaria Holdings Corporation, Ellimac Prime Holdings, Inc., KMC Realty Corp., Meritus Prime Distributions, Inc., Montosco, Inc., NE Pacific Shopping Centers Corporation, PG Holdings, Inc., Patagonia Holdings Corp., PPCI Subic, Inc., Premier Wine and Spirits, Inc., Puregold Duty Free (Subic), Inc., Puregold Duty Free, Inc., Puregold Properties, Inc., Puregold Finance, Inc., Puregold Realty Leasing & Management, Inc., San Jose City I Power Corp., S&R Pizza (Harbor Point), Inc., S&R Pizza, Inc., Blue Origin Holdings Incorporated, Illido Management Corporation, Union Energy Corporation, and Union Equities, Inc.

Mrs. Co earned her Bachelor of Science degree in Commerce from the University of Santo Tomas.