Is any other information besides the EPC ever saved on an RFID chip?

Yes, depending on what they are being used for, the chips in RFID tags can have all sorts of information on them. However, the Electronic Product Code (EPC) itself, which is also coded onto an RFID chip, does not contain any additional information beyond the name of the manufacturer, the type of product, a serial number that makes it possible to identify individual items uniquely and an indicator showing whether the tagged object is a case of items or an individual item. The EPC is very much like a barcode: it contains a limited amount of information about an item. However, also like a barcode, the EPC can be linked a secure database in which additional information can be stored. Imagine items in a supermarket or a retail store, for example: The RFID tag on them would encode the EPC and its basic information; and that RFID tag might also link to a separate secure database that provides additional product information, such as where something was grown or manufactured (for food) or its colour and size (for clothing) and opens the way for a variety of consumer services.