OK not bad, but your office should have a large FAK for all of the staff. This is kind of an FAK/Personal Hygiene kit.
Not really sure what this does for you in an office. Does it rain in your office? Are you planning to walk out?
I can't think of an office that does not have cups and mugs, most offices have tea and coffee already.
Well, most of this stuff is EDC, but some of it is just basic office gear. If your office does not have radio/batteries/flashlights on hand at all times, that's just sad.
Too Rely on what others have Or what Work environment should have is basically not at all being a prepared person. Things not getting refilled, batteries dying, Things being miss placed, People breaking items that never get replaced, Busted flashlights with blown bulbs, list goes on. Not to mention If you do have to leave the office or such you are still prepared and not leaving items behind. Plus knowing your gear and having high quality gear compared to what an office may contain may be the key in the end.