Formally known as Poczta Polska Spółka Akcyjna (Polish Postal Service Joint Stock Company), it has two large subsidiary companies: Capital Group Poczta Polska (Post Bank)[3] and Pocztowe Towarzystwo Ubezpieczeń Wzajemnych (Postal Mutual Insurance Association). The State Treasury of Poland is the founder and sole shareholder of Polish Post, which is the responsibility of the Minister of Administration and Digitization.