 The digital services, such as neo-stamps, neo-letters and neo-postcards, are available through the Internet-based platform 'Envelo'.The two large subsidiary companies are "Capital Group Poczta Polska" (Post Bank) and the "Pocztowe Towarzystwo Ubezpieczeń Wzajemnych" (Postal Mutual Insurance Association).The State Treasury of Poland is the sole owner and shareholder of Polish Post, which is the responsibility of the Minister of Administration and Digitization.