Is it acceptable for you to provide graphics such as maps and charts?
Sure. But first you must carry out two checks.
First, be SURE your target publication uses maps and charts, and make sure these are relevant and interesting maps and charts.
Secondly, make sure you obtain permission to publish them from the owners of the copyright, and put a note at the end of the article about who owns copyright and the name of the person who verbally or in writing gave you permission to re-print their copyright material.