What raw materials were commonly exported to industrialized areas?

Many raw materials were exported to industrialized lands, each playing a key role in the economy. One such raw material was cotton. This exported from Egypt into Europe for its growing textile manufacturing during the Industrial Revolution. Another raw material that was transported throughout Europe and China was clay. This clay was used to make the very much wanted Chinese porcelain, and was used to copy that porcelain in Europe by people such as Josiah Wedgwood.