Thick haze from fires in Borneo and Sumatra is affecting Malaysia, Singapore and the Philippines, with schools closed there. The UN says the El Nino this year could be the strongest in four decades, which means drier conditions. The article does not mention Thailand directly. For a Thai SME, the practical points are to watch regional air-quality reports and the dry-season outlook, and to plan for possible heat, drought or smoke-related disruption to exports and tourism. Nothing needs to change today.