The budget performance for the first 18 months of the biennium 2016–2017 of the trust funds administered by the secretariat is presented in this report. The aim is to inform Parties of the results achieved and income and expenditure as at 30 June 2017. In the period under consideration, programme highlights include: organizing, in parallel with the sessions of the Conference of the Parties and the Conference of the Parties serving as the meeting of the Parties to the Kyoto Protocol, the first part of the first session of the Conference of the Parties serving as the meeting of the Parties to the Paris Agreement, following the entry into force of the Paris Agreement in November 2016; providing strategic advice as well as technical and logistical support to negotiations and 129 meetings and/or workshops of constituted bodies, technical experts and regional groups; coordinating the international assessment and review process for Parties included in Annex I to the Convention; and supporting the work of all constituted bodies. As at 30 June 2017 the secretariat had received EUR 42.6 million, equivalent to 80.1 per cent of the total core budget indicative contributions expected for the 2016–2017 biennium. The high level of outstanding contributions to the core budget for the current and previous bienniums poses a risk to the effective implementation of the UNFCCC work programme. Voluntary contributions received amounted to USD 3.2 million under the Trust Fund for Participation in the UNFCCC Process and USD 21.6 million under the Trust Fund for Supplementary Activities. Core budget expenditure was at 72.6 per cent and USD 22.1 million had been spent on various projects under the Trust Fund for Supplementary Activities. This report also contains information on the status of the Trust Fund for the Clean Development Mechanism, the Trust Fund for the International Transaction Log, the Trust Fund for the Special Annual Contribution from the Government of Germany and programme support costs. It further provides information on human resources and contains a detailed report on programme delivery.