We can demonstrate the link between two nouns either by using possessive forms (the US bank's finance division / the finance division of the US bank) or compound nouns (the US bank finance division).

The accentuation of compound nouns that are formed by combining two elements (first- and last-part) shows a certain patterns by the last-part element. The dictionary’s appendix at the end of the book ...

A compound noun combines two or more words to create a new meaning: ...