Participant - an enterprise or organization taking part in the Trade Fair.

Exhibitor - participant of the Trade Fair who has submitted an application to take part in it.

Co-exhibitor - participant of the Trade Fair who is registered in the Exhibitor's application and is taking part in the Fair by using exhibition space, rented by Exhibitor.

Exhibition space - place ordered by Exhibitor and leased to him.

Kind of exhibition space means empty place or a place with standard equipment or open air-space.

Type of exhibition space means a stand in a line, a two-sided open stand, a three-sided stand or an island-stand.