This paper examines the economic effects of the global energy transition and the large uncertainty surrounding future fossil fuel demand on countries in the Asia-Pacific region. Under the paper’s baseline, coal demand is expected to shrink by 15 percent by 2035, although depending on global policy ambition and technological uptake, the decline could be as large as 45 percent. Model simulations indicate that one-third of global coal capital stock and one-quarter of Asia-Pacific coal capital stock could become stranded if the speed of the transition is underestimated. By contrast, global natural gas faces both upside and downside risks: when energy policy targets coal alone, natural gas extraction benefits, prompting an 18 percent rise in capital stock, whereas a fuel-agnostic transition would reduce gas capital stock by 16 percent. Impacts differ across countries, with high-cost coal exporters facing early losses, low-cost producers potentially gaining market share, and some gas exporters benefiting under select scenarios. At the same time, new growth opportunities will emerge for countries with strong critical mineral endowments and green energy potential.