The segment’s principal business activity is the transmission of high-methane and nitrogen-rich gas as well as of small amounts of coke-oven gas, over the distribution network to retail and corporate customers. The segment is also engaged in extending and upgrading the gas network and connecting new customers. Gas distribution services are rendered by Polska Spółka Gazownictwa Sp. z o.o. (PSG). As the Distribution System Operator, the company conducts its business in all provinces of Poland. As the owner of approximately 96% of Poland’s distribution network and nearly 99% of the gas service lines, PSG enjoys a dominant market share.