The bodies were discovered in October
A judge in Dublin has ruled Eamonn Harrison, who is from Northern Ireland, should be sent to the UK.
The bodies were found in a refrigerated trailer on the Waterglade Industrial Park in October.
Harrison, 23, was remanded in custody and is due back in court on Tuesday, 4 February.
His lawyers will decide next week whether to appeal.
Tags: Purfleet, Grays, Thurrock, Lakeside, West Thurrock