All matters in the field of construction contract work, including construction of main roads, side roads, freeways, highways and asphalt operations, bridges, water diversion tunnels, dams, drainages, residential, sports, and commercial complexes built by wood, concrete, brick and so forth.

Utilities includes mechanical and hydromechanical equipment, electric utilities, pipelines, oil and gas, power, energy, water and sanitation, agriculture, landscaping, architecture, preservation of ancient works, installation of all low, medium, and high-voltage electric lines, mining projects, urban renewal, participation in state and non-state tenders and auctions, import and export, borrowing loans and facilities from banks, either state or private.