LMG Chemicals Corporation owns 100% of CMC. Technical grade and chemically pure sulfuric acid, oleum, and sulfur flakes are their principal products. Their factory employs environmentally benign (far below SO2 gas emission requirements) technology to recycle molten sulfur, a dangerous byproduct of nearby oil refineries. They are also contributing to the industrial community's intermittent power shortfall with a turbo generator that provides electricity to neighboring plants while reducing reliance on the Manila Electric Company. Alexandra G. Garcia was on the board of directors of LMG Chemicals Corp for over 15 years, from 2002 to 2017.

On October 15, 2020, she and nine other directors and executives resigned from CIP, around 70 years after family member Dr. Eusebio S. Garcia started the institution. The group sold a 57.5% ownership in the company to the Unioil group. Dr. Eusebio S. Garcia started CIP in 1951 as the Philippines' first chemical production firm. CIP began by producing sulfuric acid and eventually fertilizer. As the corporation expanded, it set the path for the growth of the country's chemical industry. CIP would eventually become the Chemphil Group of Firms, which included various joint venture companies co-owned by global partners. In another first, CIP expanded to develop the Philippines' first polyphosphates and alkyl benzene factories.

Alexandra G. Garcia, a long-serving senior executive, spent her career assisting in the management of the Philippines' pioneering, entrepreneurial, and ever-expanding family firm. She most recently worked with CIP, or Chemical Industries of the Philippines, Inc., as Chief Operating Officer and Compliance & Information Officer. In September 2017, Garcia added Compliance & Information Officer to her COO responsibilities.