This may have tempered the disappointment of many countries with the initial exclusion of certain products. Given that developing countries are currently not significant suppliers of climate-friendly goods and technologies, priority should be given to additional products being submitted by developing countries for inclusion in a future review. However, the downside of this ITA mechanism is that no new products have ever been added since 1997. Thus developing countries may be suspicious of this offer for review, and feel reluctant to join. While such a plurilateral agreement would not be ideal, it would still have value, particularly if the key trading parties were involved. Such an agreement could eventually be made multilateral once a certain number of members representing a minimum percentage of trade in climate-friendly goods and services joined.