Commercial treaty till the middle of the century, apparently with irresistible support, they suddenly collapsed under the strain of a season of exceptionally short crops. Both their continued maintenance and their final sudden abolition are in some respects divergent from the general course of British tariff history. Commercial treaty A commercial treaty is a formal agreement between states for the purpose of establishing mutual rights and regulating conditions of trade. It is a bilateral act whereby definite arrangements are entered into by each contracting party towards the other—not mere concessions. For example, the Methuen Treaty was a commercial treaty between Portugal and
Strangford Treaty throughout the country. As a result, low cost imported goods manufactured by machine industry began to swamp the market that had previously been dominated by the local handicrafts industry. Exports of tobacco and sugar from Brazil were prohibited, which protected British producers in the West Indies. The treaty was written so as to expire in 1825 unless renewed. It remained in effect until 1844. Strangford Treaty The Strangford Treaty was an 1810 treaty between the Portuguese colony of Brazil and the United Kingdom of Great Britain and Ireland. It provided major concessions to the British in the form of tariff