Propylene Oxide - Market Share Analysis, Industry Trends & Statistics, Growth Forecasts (2026-2031)

The propylene oxide market size is projected to expand from USD 22.73 billion in 2025 and USD 23.90 billion in 2026 to USD 31.43 billion by 2031, at a CAGR of 5.63% between 2026 and 2031. This report is segmented by Production Process (Chlorohydrin Process, Styrene Monomer Process, Hydrogen Peroxide Process, Others), Application (Polyether Polyols, Propylene Glycol, Other Applications), End-Use Industry (Automotive, Building and Construction, and More), and Geography (Asia-Pacific, North America, Europe, South America, MEA). The Market Forecasts are Provided in Terms of Value (USD).

Global Propylene Oxide Market Trends and Insights

Rising Demand for Polyurethane Foams in Energy-Efficient Buildings

The propylene oxide market benefits from building rules that require better thermal performance in new construction and retrofits, which makes insulation specifications an important source of demand. The European Union revised Energy Performance of Buildings Directive requires zero-emission buildings for new public buildings from 2028 and for all new buildings from 2030 . Rigid polyurethane foam can deliver thermal conductivity as low as 0.022 W/m·K, making it useful where building designs limit the available insulation thickness. The U.S. Department of Energy Building Technologies Office supports improvements in building efficiency and technologies for existing buildings. These rules increase demand for spray foam and boardstock systems that use propylene oxide-derived polyether polyols, rather than treating insulation selection as a solely discretionary choice. They also direct attention toward materials that meet thermal requirements without major changes to wall or roof designs. Integrated producers can meet tighter viscosity and reactivity requirements better than suppliers focused only on commodity-grade material, which connects regulatory demand to a greater emphasis on product consistency.

Lightweight Materials Adoption in Electric and Conventional Vehicles

The propylene oxide market gains from polyurethane use in vehicle components that replace heavier materials, while retaining the functional requirements of vehicle systems. Global vehicle production reached 96.4 million units in 2025, an increase of 3.9% from 2024, according to Organisation Internationale des Constructeurs d'Automobiles (OICA). Covestro states that its Baypreg STM polyurethane technology can reduce the weight of battery pack enclosures by up to 60% compared with steel. These systems can also provide electrical insulation and flame-retardant performance in the same component, avoiding the need to rely only on separate materials for each function. Electric vehicle applications, therefore, require specialty polyether polyols for semi-rigid encapsulants and structural foams, unlike many established flexible foam uses. The resulting shift toward higher-value grades can support producers that have formulation and downstream processing capability, particularly where vehicle manufacturers seek fewer components and reduced weight.

Propylene Feedstock and Energy Price Volatility

The propylene oxide market remains sensitive to propylene and energy costs because propylene comes from crude oil, natural gas, and related processing routes that respond to broader energy conditions. This exposure affects both pricing and producer margins, and it can also influence the relative competitiveness of different regions. The supplied draft reported that East Asian propylene moved from USD 865 per metric ton in late June 2026 to USD 1,010 per metric ton by mid-July 2026. The cited source for that movement does not meet the required source standard, so the figure is not used in this report. Cost shocks can be especially difficult for producers with older assets, limited integration, or a higher dependence on purchased feedstock. Repeated cost pressure can accelerate capacity closures and reduce the diversity of regional supply, leaving buyers more exposed to disruptions at the remaining large plants.

Other drivers and restraints analyzed in the detailed report include:

• Expansion of Propylene Glycol Demand in Food, Pharmaceutical, and Personal Care Applications
• Asia-Pacific Capacity Expansion and Downstream Integration
• Environmental and Occupational Safety Compliance Burden

Segment Analysis

The chlorohydrin process held 33.56% of the propylene oxide market share in 2025, mainly because of its installed base. The process faces a policy-driven phaseout in China and an economic contraction in Europe. The propylene oxide industry still uses styrene monomer and cumene hydroperoxide routes at major integrated facilities. Those routes can be exposed to the pricing of their coproducts. Hydrogen peroxide technology is the fastest-growing production process, with a projected CAGR of 5.97% through 2031. Its coproduct-free output and fit with stricter environmental requirements support new investment.

The size of the hydrogen peroxide technology segment is expected to gain from projects located beside polyether polyol capacity. Solvay’s licensed 300,000-tonne-per-year Panjin project demonstrates continued commercial interest in this route. KBR’s agreement with Sumitomo Chemical expands access to propylene oxide by cumene technology. Both technologies reduce dependence on markets for styrene monomer or tertiary butyl alcohol. In Europe, closures of older assets indicate that replacement investment may remain limited. In the Asia Pacific region, integrated projects can process output internally instead of selling it into the spot market. This difference changes the competitive position of suppliers that do not have derivative operations.

Complete Report Scope:

• By Production Process
  • Chlorohydrin Process
  • Styrene Monomer Process
  • Hydrogen Peroxide Process
  • Others
• By Application
  • Polyether Polyols
  • Propylene Glycol
  • Other Applications
• By End-Use Industry
  • Automotive
  • Building and Construction
  • Chemicals
  • Other End-Use Industries
• By Geography
  • Asia-Pacific
    • China
    • India
    • Japan
    • South Korea
    • ASEAN Countries
    • Rest of Asia-Pacific
  • North America
    • United States
    • Canada
    • Mexico
  • Europe
    • Germany
    • United Kingdom
    • France
    • Italy
    • NORDIC Countries
    • Rest of Europe
  • South America
    • Brazil
    • Argentina
    • Rest of South America
  • Middle East and Africa
    • Saudi Arabia
    • South Africa
    • Rest of Middle East and Africa

Geography Analysis

Asia-Pacific held 48.83% of the propylene oxide market size in 2025 and is forecast to grow at a 6.45% CAGR through 2031. China is central to regional production, capacity additions, and downstream integration. The supplied research draft described excess Chinese capacity as a source of export pressure in Southeast Asia, the Middle East, and Africa. India adds regional demand through urbanization, pharmaceutical activity, personal care, and infrastructure development. Japan and South Korea remain important for high-purity polyols and pharmaceutical-grade propylene glycol. The propylene oxide market in these countries faces growing pressure from lower-cost Chinese supply.

North America is the second-largest regional propylene oxide market, supported by feedstock availability and integrated production assets. LyondellBasell reported unplanned downtime at its Bayport PO/TBA facility during the second quarter of 2026 and said that the facility restarted in June. This event showed the importance of large plants to regional supply. Europe experienced a structural reduction in supply after permanent closures in 2025. LyondellBasell and Covestro permanently closed the PO11 unit at Maasvlakte in March 2025. Demand remains tied to automotive and construction, while procurement increasingly relies on imports and remaining integrated facilities.

South America and the Middle East and Africa remain smaller markets in the propylene oxide market. Brazil supports South American demand through construction and automotive manufacturing, where polyurethane materials are used in insulation, vehicle systems, furniture, and other consumer products across major urban, industrial, and regional centers. Argentina has demand from agrochemical and personal care production, which provides derivative outlets beyond the construction cycle. Saudi Arabia has integrated petrochemical operations that benefit from competitive propylene feedstock and can support regional availability of chemical intermediates. South Africa and other Sub-Saharan markets have growing demand for insulation and furniture foam as urban development increases the need for building materials and household products. The propylene oxide market could gain from local downstream investment as urbanization and consumer goods manufacturing develop, although the supplied draft did not provide verified market-size figures for these countries. Local conversion of propylene oxide into polyols, propylene glycol, coatings inputs, and specialty chemicals would reduce the need to move all intermediate material over long distances. It would also give regional manufacturers more direct access to inputs for construction, appliances, automotive production, footwear, mattresses, and personal care products. The level of investment will depend on the availability of reliable feedstock, suitable production technology, and demand that is sufficient to support derivative plants. These regions therefore remain relevant as destinations for supply and as potential locations for value-added processing, even though their current role is smaller than that of Asia-Pacific, North America, and Europe.

List of Companies Covered in this Report:

• AGC Inc.
• BASF
• Dow
• Huntsman International LLC
• Indorama Ventures Public Company Limited
• INEOS
• LyondellBasell Industries N.V.
• Manali Petrochemicals Limited
• Mitsui Chemicals, Inc.
• Repsol
• SABIC
• Shell plc
• SKC
• Sumitomo Chemical Co., Ltd.
• Tokuyama Corporation

Additional Benefits:

• The market estimate (ME) sheet in Excel format
• 3 months of analyst support