Negotiation and renegotiation for others of leases and subleases and real estate purchase agreements; Business advisory services in the field of land cultivation, land and real estate management; Business consulting in the field of environmental management, namely, advising businesses and individuals on issues of environmental impact, conservation, preservation and protection, and economic analysis for business purposes; Business management in the field of land cultivation, land and real estate management

Construction and construction management of tunnels and underground structures; Construction management; Construction of roads, underground utilities, and housing pads; Construction of reservoirs, levees, mitigation banks, breakwater systems and erosion controls; Construction planning; Construction services, namely, concrete paving, site clearing, excavation, pad preparation, grading, and asphalt paving services; Construction services, namely, installation of environmental containment systems; Demolition of buildings; General construction contracting; Land reclamation; Mining extraction; Residential and building construction consulting; Residential and commercial building construction; Installation of building scaffolds; Earthworks services in the nature of excavating for building construction; Construction of civil engineering structures by laying concrete; Soil erosion control services