Career
He is a graduate of the Gdańsk University of Technology and the Leningrad Ship-Building Institute. List ships that have been designed or redesigned by Choreń:
1980 – STS Pogoria
1982 – Dar Młodzieży
1982 – ORP Iskra II (1982)
1984 – STV Kaliakra
1985 – Recreation Vehicle Oceania
1987 – Druzhba
1987 – STS Mir
1988 – Alexander von Humboldt
1989 – Khersones
1989 – Pallada
1991 – Nadezhda
1991 – STS Fryderyk Chopin
1991 – STS Kaisei
1995 – Estelle
2000 – SV Royal Clipper
2002 – Mephisto
2008 – Mały Książę.
