Provides comprehensive construction services including architectural and civil engineering design-build, real estate development, and construction consulting for commercial facilities, residential projects, and public infrastructure.

Manufactures and sells concrete products including pipes, blocks, and retaining walls for civil engineering and construction applications. Also produces prestressed concrete products, supporting infrastructure development and construction projects.

Manufactures and sells chemical products, pharmaceutical raw materials, and functional materials. Supplies high-quality chemical products for medical, pharmaceutical, electronic materials, and food additive industries based on organic synthesis chemistry technology.

Provides digital marketing, system development, and consulting services. Supports corporate digital transformation through data analytics, web solutions, and IT strategy planning, delivering comprehensive business solutions.

Operates cram schools for elementary, middle and high school students. Provides group and individual instruction to support academic advancement toward selective school entrance. Delivers educational services leveraging pedagogical expertise.

Designs, constructs, and sells residential and commercial buildings including detached houses, apartment complexes, commercial facilities, and industrial structures. Also provides renovation and remodeling services.

Provides comprehensive construction services including planning, design, construction, and management. Specializes in civil engineering and building construction works, addressing various infrastructure development projects.

Retail business offering daily necessities and household goods through store operations, providing consumers with convenient shopping environments and essential products.

Provides comprehensive IT solutions for enterprises including system integration, software development, IT consulting, cloud services, and data center operations.

Collects, organizes, analyzes, and provides real estate-related data. Operates database services supporting transparency and efficiency in the real estate market. Builds and operates information infrastructure for the real estate industry.