Optional composite that identifies a contributor – a person or corporate body – participating in the promotional event who is also a contributor to the product, or who is its subject (ie who is fully described in an instance of the <Contributor> composite within Groups P.5, P.7 or P.18, or in an instance of <NameAsSubject> within Groups P.12 or P.18, in the same Product record). Repeatable to refer to multiple contributors.

Note that an instance of <PromotionalEvent> may also contain one or more <Contributor> composites – the latter listing participants to the event who are not contributors to the product.