Overview

• Four groups — Energy CoLab, LepakInSG, SG Climate Rally and Singapore Youth for Climate Action — issued a Sept 9 open letter seeking facility-level disclosure of allowances, clarity on post-2027 tax levels, and stronger protections for low-income households.
• NCCS said allowances cover only a portion of direct emissions, exclude emissions from purchased electricity, and require eligible facilities to submit credible net-zero decarbonisation plans.
• The agency said allowance levels are pegged to global efficiency benchmarks to keep trade-exposed sectors competitive and warned of carbon-leakage risks.
• NCCS signalled it will release aggregated allowance data and more details on the post-2027 trajectory in due course, while rejecting company-level disclosure due to commercial sensitivities.
• Context: the tax is S$25 per tonne in 2024–25, rising to S$45 in 2026–27 and S$50–S$80 by 2030, with past reports of rebates up to 76% and a 2024 revenue shortfall underpinning calls to publish effective rates and bolster household support such as U-Save rebates and S$400 climate vouchers.