Calcium Oxide (CaO), commonly known as Quicklime​ or Burnt Lime, is a fundamental industrial chemical produced by calcining limestone at high temperatures. This versatile, caustic white solid is indispensable across a vast range of industries, from steel manufacturing and environmental protection to construction, chemical synthesis, and water treatment. The global calcium oxide market is propelled by infrastructure development and stringent environmental regulations. The global market for calcium oxide in industrial applications is substantial, with the broader lime market (including quicklime and hydrated lime) valued in the tens of billions of USD. Asia-Pacific is the dominant consumer, accounting for over half of global demand, with China as the epicenter of both…