Industrial Revolution required a steady and constant supply of raw material Britain itself did not have many raw materials, its weather and landscape did not allow her to grow fine cottons or sugar which were in great demand and valuable back in 18th century. This was a major obstacle in the way to Industrial Revolution but the British because of its huge empire could get these material through trade. Britain got most of its cotton by trading with India because the Indian cotton were in good quality and were way better than the European ones. Britain also traded with the West Indies for sugar. These raw materials were all manufactured by the factories back in Britain and exported it back to the colonies or other European countries.
Industrial Revolution also required markets for the increasing number of goods it produced and Britain had none of this problem since its Empire was so huge and the British were skillful at shipping. Manufactured goods were exported to nearly all colonies of Britain. In America, the British even set laws to restrict the colonies import non-British goods and the colonies must export