This paper summarises information held by the Secretariat in relation to IUU fishing and vessel activity relevant to CCAMLR from October 2017 to August 2018. Details are provided of an attempted landing of toothfish from CCAMLR-IUU listed vessel STS-50, its unauthorised departure from several ports, and combined international efforts leading to seizure of the vessel and prosecution of the Master by Indonesian authorities. Instances of unidentified fishing gear retrieved in the Convention Area are detailed in Table 1. Communication to non-Contracting Parties and responses received are detailed in Table 2. Proposed updates, amendments inclusions and removals to IUU Lists and vessel particulars are explained with recommendations to SCIC and the Commission.