Chemistry is the basis for many fields of engineering, biology, and other sciences. Therefore, it can give you insights in your field at broad and fundamental levels. That can strengthen your abilities to innovate and to see basic connections in your specialization or across disciplines. Almost anyone, but there are some fields where a chemistry minor adds particular strengths. Math-chemistry could be an option for people in applied math.
Chemical physics is an important field in physics.
Recently a few colleges have introduced business-chemistry programs. A business major could gain valuable technical experience with a chemistry minor. If you're an engineering or science major, you may already have several of the courses in the chemistry minor. At the 400-level, you can design your program for emphasis in such areas as physical chemistry, organic chemistry, or biochemistry. A chemistry minor may require you to take a heavier course load or spend extra time completing your education.