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Hallador Energy Co is a coal mining company with operations in Indiana, USA, and it is part of the electric power generation industry. The operations of the company are divided into two primary reportable segments, the Coal Operations and Electric Operations segments. The majority of revenue is earned from the Coal Operations segment.
Northwest Pipe Co is a manufacturer of water-related infrastructure products. The company has two operating segments; Engineered Steel Pressure Pipe segment manufactures large-diameter, high-pressure steel pipeline systems for use in water infrastructure applications, which are related to drinking water systems. These products are also used for hydroelectric power systems, wastewater systems, seismic resiliency, and other applications, and Precast Infrastructure and Engineered Systems segment manufacture stormwater and wastewater technology products, high-quality precast and reinforced concrete products, including manholes, box culverts, vaults, and catch basins, pump lift stations, oil water separators, biofiltration, and other environmental and engineered solutions.