Two Israelis, one in his 80s, have pleaded not guilty to importing cannabis into Britain, while a third has pleaded guilty.
Moshe Kedar, 81, and Mordechai Hersh, 66, will face trial at Winchester Crown Court in February next year.
Yehezkel Srebro, 56, pleaded guilty but will not be sentenced until later. Another six people are charged with the same offences.
All nine were charged following arrests in Southampton in April, in connection with alleged drug-trafficking.