https://www.spamcop.net/fom-serve/cache/125.html

Bulk email can be split into two categories: Opt-in and Opt-out. Opt-in is email that an individual requested or agreed to receive. Many legitimate mailers use opt-in methods for marketing. Individuals are responsible for reading and understanding a company's privacy policies and acceptable use policies (if applicable) before submitting an email address. If a privacy or acceptable use policy clearly states that signing up for the service results in receiving marketing or commercial email, then the individual has "opted-in" to receive email and that email is not spam.

A company emailing you when you have given them your permission to email you, but about certain topics you decide you don't like is not spam.