OCI Enterprises Inc. is the North American subsidiary of OCI Holdings, based in Seoul, South Korea. Headquartered in San Antonio, Texas, OCI Enterprises consists of two divisions. Its energy businesses operate through OCI Energy Holdings LLC, a consortium of companies that develop, own, operate, maintain, and repair solar photovoltaic power plants and battery energy storage systems as well as manufacture equipment for solar projects.

Those companies are OCI Energy, and Mission Solar Energy LLC. OCI Solar Power is a leading developer of utility-scale solar and battery energy storage system projects. Mission Solar Energy is one of the longest-running solar panel manufacturer in the U.S. Both are also located in San Antonio, Texas.

OCI Enterprises also has a minority stake in Sun Action Trackers, a manufacturer of single- and dual-axis tracking solutions.

The chemical business operates through OCI Peroxygens LLC, producing sodium percarbonate in Alabama.