The seeds that are used for the manufacture of oil is one of the most important shipping items in cargo containers. Seeds such as soybeans and cotton are used to produce oil for human consumption and the residues are used as animal feed.
The raw material used in the manufacture of soap is mainly the potash that is produced most in Canada, Brazil and Belarus. From these sites, the potash is transported to the other parts of the world where the production of potash is much lower.
Books or paper, the term refers more to the raw material of these since it comes from forest products, which is: wood chips. These chips come from all over the world.