Nearly 25 years have passed since the appearance, in 1986, of the first English language model form of contract for process plant construction published by the Engineering Advancement Association of Japan (“ENAA”). From a modest start, the form has now gained a considerable degree of prominence (not least through the adoption of an adapted version of the form by the World Bank in its set of Standard Bidding Documents for Plant Procurement—of which more below), mounting a respectable challenge, in the plant procurement field, to other international forms such as the Conditions of Contract for Plant and Design-Build published by the Fédération Internationale des Ingénieurs-Conseils (“FIDIC”) (usually referred to as the “FIDIC Yellow Book”). As a result, the form is far more familiar to international non-Japanese contractors than it was at the outset. But it should be set to become more prominent still, given its particular approach towards the licensing of intellectual property rights owned by the contractor (affording to these rather greater protection than the FIDIC Yellow Book) which arguably makes it especially suited to the project which centres around a proprietary product supplied by the contractor.