Certain types of goods require certain and sometimes strict storing requirements. I would assume that you’d already be knowledgeable of this when you started in your business, however it doesn’t hurt to repeat here some of the considerations. Not just that, but there are also types of goods that require to be transported by only certain means (certified carriers for fuels and so on) and only by defined types of carriers (consider this for say gas for instance, something with high temperature etc.) 

Moreover, there are goods subject to excise, i.e. cigarettes and alcohol for instance that require being stored in locked away areas in some countries. The physical security of such goods is apparent I would assume (they’re more prone for theft due to their essence), however it’s also important to understand your local legislation governing storing such goods.

Specific requirements may also be imposed on keeping track on transactions and physical movement. You should always ensure what’s expected from you and that your paperwork is compliant with those requirements.