Tomasz Jakubowski

Kompania Weglowa SA operates as a mining company. It specializes in mining and producing coal. The company was founded on February 1, 2003 and is headquartered in Katowice, Poland.

Part of Grenevia SA, FMG Pioma SA is a Polish company that manufactures and sells construction and mining machinery. The private company is based in Piotrków, Poland.

ZAMET Budowa Maszyn SA engages in the distribution of machinery and equipment for metallurgy, and processing of ferrous and non-ferrous metals. It offers hydraulic presses, technological process lines, industrial machinery, forging hammers, hydraulic juice presses, hydraulic cylinders, as well as, machining, heat treatment, and welding services. The company was founded in 1961 and is headquartered in Tarnowskie Gory, Poland.

TDJ SA is a family owned investment firm headquartered in Katowice, Poland. The firm carries out its activity in five sectors; Equity, Estate, Finance, Venture, and Foundation.

GC Investment SA engages in the development and sale of real estate. It offers apartment buildings and commercial property. The company was founded in 1993 and is headquartered in Katowice, Poland.