Confidential information protections limit disclosure in safeguard investigations, permitting summaries or refusal absent authorised disclosure by supplier. Confidential information submitted in safeguard investigations shall be treated as confidential by the Director-General upon cause shown and not disclosed without supplier authorisation. The Director-General may require a non-confidential summary or accept a statement explaining why summarisation is impossible. If confidentiality is deemed unwarranted or the supplier refuses authorised summary disclosure, the Director-General may disregard the information unless its correctness is demonstrable from appropriate sources.