Online newspaper Tiesa.com said Baranauskas and Antonov, who is a Russian citizen, were not present at the hearing.
The prosecutor stated that the outcome of the ongoing trial for handover of Wikileaks' founder Julian Assange to Sweden would be relevant for this case too. A ruling in the Assange trial is expected in late April.
The London court said on Thursday that the next hearing would be moved from May to June.
Antonov, who held a 68.1 percent stake in Snoras, and Lithuanian national Baranauskas, who owned 25.3 percent, were arrested in London in November on European arrest warrants issued by Lithuanian prosecutors. Both men are suspected of large-scale misappropriation of assets and document forgery.
The extradition case was opened in London in late November, the suspects do not want to be handed over to Lithuania. They are required to register with the police on a regular basis.
