Youth Day Ltd.; Level 12, One Peking Road, Tsim Sha Tsui, Kowloon, Hong Kong;  Tel. (852)  9803 0796; E-mail: info@youthday.net

Youth Day Sp. z o.o.; ul. Chałubińskiego 8, 00-613, Warszawa, Poland; Tel. (48) 798 977 807; E-mail: info@youthday.net