My university major is polymer materials science and engineering, which is a combination of chemistry and materials. When I apply for the civil service exam, I don’t know if it counts as chemistry?

If you ask about this on the Internet, you are an amateur. The standards of the personnel recruitment department in each place are different. In other words, if they say you are, you are, if they say you are not, you are not, for an unpopular professional like you , be sure to call the Civil Service Department of the Social Security Bureau, or call the inquiry phone number logged out of the registration website, and explain to him the nature of your profession. It is up to him to decide, because this matter involves legal liability issues, personnel matters If you pass the department review, it means that your major is recognized as meeting the application requirements. If you don't ask, you may be blacklisted by someone with connections during the qualification review after you are shortlisted for the written test. Speaking from experience, remember it.