Global market valuation was derived through production volume mapping and value chain analysis across mining, calcination, and end-use industries. The methodology included:
• Identification of 40+ key producers across China, Russia, Turkey, Australia, Brazil, Austria, Slovakia, and the United States
• Product mapping across dead burned magnesia (DBM), caustic calcined magnesia (CCM), fused magnesia (FM), and specialty high-purity grades
• Analysis of reported and modeled annual revenues specific to magnesium oxide portfolios, including captive consumption by vertically integrated refractory manufacturers
• Coverage of producers representing 65-70% of global market share in 2024
• Extrapolation using bottom-up (production volume × unit price by grade and region) and top-down (industry consumption validation via steel production, fertilizer application rates, and construction output) approaches to derive segment-specific valuations for refractory, agricultural, environmental, and industrial applications