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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.
Ribbon Communications Inc provides network solutions to service providers and enterprises. The company enables service providers and enterprises to modernize their communications networks and provide secure real-time communications solutions to their customers and employees. The company has two separate lines of business; the Cloud and Edge segment, and the IP Optical Networks segment. The majority of the revenue for the company is generated from its Cloud and Edge segment that provides secure and reliable software and hardware products, solutions, and services for VoIP communications, Voice Over LTE among others to service providers and enterprise customers. The company generates majority of its revenue from United States.