"The WTO derives most of the income for its annual budget from contributions by its Members. These are established according to a formula based on their share of international trade. Miscellaneous income is earned from rental fees and sales of WTO print and electronic publications. The WTO also manages a number of trust funds, which have been contributed by Members. These are used in for technical cooperation and training meant to enable LDCs and DCs to make better use of the WTO and draw greater benefit from the multilateral trading system." Quoted from the article