1. The Twenty-first Meeting of the Sub-Regional Ministerial Steering Committee on Transboundary Haze Pollution (21st MSC) was held on 6 August 2019 in Brunei Darussalam, and attended by Ministers/representatives responsible for the environment, for land, forest fires and haze, from Brunei Darussalam, Indonesia, Malaysia, Singapore, and Thailand, and the Secretary-General of ASEAN. The Twenty-first Meeting of the Technical Working Group on Transboundary Haze Pollution (21st TWG) preceded the Meeting.

2. The Ministers noted the weather outlook information presented by the ASEAN Specialised Meteorological Centre (ASMC) for this dry season, that drier and warmer conditions in the southern ASEAN region were expected between August and October 2019. In addition, neutral (neither El-NiAo nor La-NiAa) conditions were forecast. The drier and warmer weather could lead to an escalation of hotspot activities and increase the risk of transboundary haze occurrence in the region. MSC countries pledged to remain vigilant and to monitor and step up their haze preventive efforts to minimise any possible occurrence of transboundary smoke haze during periods of drier weather.