Yes, please ask for money. How much depends on the use. If its gonna be small inside the report, maybe $100. If its graces the cover a couple thousand. Seriously. I earn my living partly from licensing my photos like this. People write me all the time asking to use pics for corporate stuff. Some ask straight up how much money I want; they're the good ones, they know it has value and I need to eat too. Others don't mention money but don't come out and ask for it for free either; they hope you'll just give it to them. I always write back and thank them for contacting me and that they can license the pic for $xxx. Most pay and I send them a file of the resolution needed for the use they want it for. Some I never hear from again, they wanted free and went looking elsewhere.