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Building construction services; Building construction, remodeling and repair; Construction consultancy; Construction management; Construction of oil pipelines; Construction of structures for the storage of crude oil; Construction of structures for the storage of natural gas; Construction supervision; Consultancy and information services in the field of construction; Covering, coating, and maintenance of pipelines for oil; Installation of oil production apparatus; Maintenance and repair services for oil pipelines; Oil well casing, tubing, and drill pipe installation; Pipe laying services; Repair or maintenance of vessels

Custom fabrication of pipes, pressure vessels, tanks for fuels, oils, natural gas, and liquids, welded tube heat exchangers, storage units for fuels, oils, natural gas, and liquids, and steel pipe racks, columns, and supports