Global Unsaturated Polyester Resin Market Size, Share, By Raw Material (Maleic Anhydride, Phthalic Anhydride, and Others), By Product Type (DCPD, Orthophthalic Resin, Isophthalic Resins, and Others), By End Use (Building & Construction, Tanks & Pipes, Electrical, Marine, Transport, Artificial Stones, and Chemicals), and By Region (North America, Europe, Asia-Pacific, Latin America, Middle East, and Africa), Analysis and Forecast 2025 - 2035

Global Unsaturated Polyester Resin Market Insights Forecasts to 2035

• The Global Unsaturated Polyester Resin Market Size Was Estimated at USD 13.58 Billion in 2024
• The Market Size is Expected to Grow at a CAGR of around 8.28% from 2025 to 2035
• The Worldwide Unsaturated Polyester Resin Market Size is Expected to Reach USD 32.59 Billion by 2035
• Middle East & Africa is expected to grow the fastest during the forecast period.

According to a research report published by Spherical Insights, the global Unsaturated Polyester Resin market size was worth around USD 13.58 billion in 2024 and is predicted to grow to around USD 32.59 billion by 2035 with a compound annual growth rate (CAGR) of 8.28% from 2025 to 2035. The global unsaturated polyester resin market is driven by increasing use in fiber-reinforced plastics, growing infrastructure and industrial projects, rising renewable energy applications, and the demand for corrosion-resistant, high-performance materials.

Market Overview

The global unsaturated polyester resin (UPR) market refers to the production and application of thermosetting resins made from unsaturated acids and glycols, which industries use to create fiber-reinforced plastics, coatings, and construction materials because these materials provide superior strength and resistance to corrosion and cost efficiency. The market expansion occurs because construction, automotive, marine, and wind energy industries require materials that combine lightweight characteristics with superior durability, while infrastructure projects continue to grow. In September 2024, Exel Composites entered into a purchasing agreement with INEOS to procure over 100 metric tons of its Envirez bio-based unsaturated polyester resin, marking commercial-scale adoption of low-carbon UPR in pultrusion and composite applications, supporting the industry’s shift toward sustainable materials

Government initiatives that promote renewable energy development and industrial growth, and the enforcement of strict environmental standards, have created market conditions that drive businesses to use low-VOC, eco-friendly resins. In March 2025, AK VINA, a subsidiary of Aekyung Chemical, completed a major capacity expansion by opening a new UPR production facility in Vietnam with an annual capacity of 37,000 tons of unsaturated polyester resin. This expansion strengthens AK VINA’s production base and supports growing demand for UPR in composites and industrial applications.

Technological developments, which include bio-based UPR and low-styrene formulations and advanced composite materials with improved mechanical and thermal properties, drive product performance improvements. The main market trends show that companies are moving toward sustainable materials, while electric vehicle manufacturers and wind turbine producers use sustainable materials, and customers choose high-performance composites. The field of green product development creates numerous possibilities that businesses can use to develop green products that serve the expanding needs of infrastructure projects and renewable energy initiatives.

Report Coverage

This research report categorizes the global unsaturated polyester resin market based on various segments and regions, forecasts revenue growth, and analyzes trends in each submarket. The report analyses the key growth drivers, opportunities, and challenges influencing the global unsaturated polyester resin market. Recent market developments and competitive strategies, such as expansion, product launch, development, partnership, merger, and acquisition, have been included to draw the competitive landscape in the market. The report strategically identifies and profiles the key market players and analyzes their core competencies in each sub-segment of the unsaturated polyester resin market.

Driving Factors   

The unsaturated polyester resin market is increasing day by day for lightweight, strong, and cost-efficient materials across construction, automotive, marine, and electrical industries. The material shows high usage because it serves as the primary component in fiber-reinforced plastics (FRP), which manufacturers use to create pipes, tanks, panels, and structural components. The expansion of infrastructure projects, together with industrial development, creates higher demand for materials, while the wind energy sector requires more turbine blades and composite components. UPR serves as the top material choice for manufacturers due to its outstanding mechanical strength, together with its ability to resist corrosion and its simple processing requirements. The market experiences further expansion because more people understand about eco-friendly resins, which emit low volatile organic compounds, together with the ongoing development of bio-based resins and high-performing solutions.

Restraining Factors

The unsaturated polyester resin market faces restraints from environmental and health concerns because manufacturing emits hazardous styrene during its production and curing processes. The market experiences cost pressure because raw material prices, especially for petrochemical-based feedstocks, show unpredictable fluctuations. The availability of epoxy and vinyl ester resins, which provide better mechanical and chemical performance for specific applications, restricts UPR usage in high-performance industries, thus hindering overall market development.

Market Segmentation

The global unsaturated polyester resin market share is classified into raw material, product type, and end use.

1. The maleic anhydride segment accounted for the largest share in 2024, approximately 45%, and is anticipated to grow at a significant CAGR during the forecast period.            

Based on the raw material, the global unsaturated polyester resin market is divided into maleic anhydride, phthalic anhydride, and others. Among these, the maleic anhydride segment accounted for the largest share in 2024, approximately 45%, and is anticipated to grow at a significant CAGR during the forecast period. This is because maleic anhydride offers high chemical reactivity and excellent compatibility with various glycols, resulting in resins with superior mechanical strength, durability, and corrosion resistance. It enhances adhesion, thermal stability, and processability in fiber-reinforced plastics and coatings. Its versatility allows use in both orthophthalic and isophthalic polyester resins, meeting diverse industry requirements. Strong demand from construction, automotive, and renewable energy sectors further reinforces its leading market position.

2. The orthophthalic resin segment accounted for the highest market revenue in 2024, approximately 50%, and is anticipated to grow at a significant CAGR during the forecast period.

Based on the product type, the global unsaturated polyester resin market is divided into DCPD, orthophthalic, isophthalic resins, and others. Among these, the orthophthalic resin segment accounted for the highest market revenue in 2024, approximately 50%, and is anticipated to grow at a significant CAGR during the forecast period. This is because orthophthalic resins combine cost-effectiveness with reliable mechanical strength, chemical resistance, and ease of processing, making them suitable for a wide range of applications. Their versatility allows use in construction materials, automotive components, marine structures, and general-purpose composites. These resins provide durability and performance in fiber-reinforced plastics, coatings, and molded products, meeting diverse industry requirements while maintaining affordability, which drives their strong demand and dominant position in the global market.

3. The building & construction segment dominated the market in 2024, approximately 40%, and is projected to grow at a substantial CAGR during the forecast period.

Based on the end use, the global unsaturated polyester resin market is divided into building & construction, tanks & pipes, electrical, marine, transport, artificial stones, and chemicals. Among these, the building & construction segment dominated the market in 2024, approximately 40%, and is projected to grow at a substantial CAGR during the forecast period. The market dominance is due to the widespread use of UPR in pipes, panels, flooring, roofing, and other construction materials, offering durability, corrosion resistance, lightweight properties, and cost-effectiveness, which makes it a preferred choice for large-scale infrastructure and residential projects globally.

Regional Segment Analysis of the Global Unsaturated Polyester Resin Market

• North America (U.S., Canada, Mexico) 
• Europe (Germany, France, U.K., Italy, Spain, Rest of Europe)
• Asia-Pacific (China, Japan, India, Rest of APAC)
• South America (Brazil and the Rest of South America) 
• The Middle East and Africa (UAE, South Africa, Rest of MEA)

Asia Pacific is anticipated to hold the largest share of the global unsaturated polyester resin market over the predicted timeframe.

Asia Pacific is anticipated to hold the largest share of the global Unsaturated Polyester Resin market over the predicted timeframe, approximately 59% market share. This growth is driven by rapid urbanization and expanding industrial and construction activities, which increase the demand for durable, lightweight materials in automotive, marine, and infrastructure applications. Supportive government initiatives for renewable energy projects further stimulate consumption. Additionally, the availability of raw materials, cost-effective manufacturing processes, and the rising use of fiber-reinforced plastics enhance product adoption. These factors collectively contribute to strong market growth and widespread industrial application over the forecast period.

The Middle East & Africa region is expected to grow at the fastest rate at a CAGR of 7.1% during the forecast period. This growth is driven by untapped market potential, rising adoption of advanced composite materials, and increasing investment in modern infrastructure projects. Growing awareness of high-performance, low-maintenance materials in industrial and commercial applications is boosting demand. Additionally, expanding renewable energy installations and the introduction of new manufacturing technologies are accelerating market penetration, making this region the fastest-growing segment in the unsaturated polyester resin market during the forecast period.

Competitive Analysis:

The report offers the appropriate analysis of the key organizations/companies involved within the global unsaturated polyester resin market, along with a comparative evaluation primarily based on their product offering, business overviews, geographic presence, enterprise strategies, segment market share, and SWOT analysis. The report also provides an elaborative analysis focusing on the current news and developments of the companies, which includes product development, innovations, joint ventures, partnerships, mergers & acquisitions, strategic alliances, and others. This allows for the evaluation of the overall competition within the market.

List of Key Companies

1. Reichhold Inc
2. Ashland Global Holdings Inc
3. KRAHN Chemie GmbH
4. Sartomer Arkema Group
5. Xi’an Sailboat Chemical Industry Co Ltd
6. Polynt S.p.A
7. Hexion Inc
8. AOC Resins
9. Sino Polymer Co Ltd
10. Scott Bader Company Ltd
11. BASF SE
12. Nuplex Industries
13. Gurit Holding AG
14. Allnex
15. Jushi Group Co Ltd
16. Others

Key Target Audience

1. Market Players
2. Investors
3. End-users
4. Government Authorities 
5. Consulting and Research Firm
6. Venture capitalists
7. Value-Added Resellers (VARs) 

Recent Development

• In December 2025, rapid urban development in Saudi Arabia, with over 5,200 active projects worth USD 819 billion as reported during that year’s megaproject overview, and ongoing largescale construction in the UAE, is accelerating demand for UPR in construction materials, roofing, and piping, driving growth in the unsaturated polyester resin market.

• In March 2025, KPS Capital Partners completed the acquisition of INEOS Composites for approximately €1.7 billion, following the initial agreement announced in December 2024, marking a significant ownership shift of a leading global UPR manufacturer.

• In June 2023, Polynt-Reichhold Group expanded production capacities through ongoing projects and facility upgrades, improving global and regional availability of unsaturated polyester resins to meet rising demand from construction, automotive, and composites industries.

Market Segment

This study forecasts revenue at global, regional, and country levels from 2020 to 2035. Spherical Insights has segmented the Global Unsaturated Polyester Resin Market based on the below-mentioned segments:     

Global Unsaturated Polyester Resin Market, By Raw Material

1. Maleic Anhydride
2. Phthalic Anhydride
3. Others

Global Unsaturated Polyester Resin Market, By Product Type

1. DCPD
2. Orthophthalic Resin
3. Isophthalic Resins
4. Others

Global Unsaturated Polyester Resin Market, By End Use

1. Building & Construction
2. Tanks & Pipes
3. Electrical
4. Marine
5. Transport
6. Artificial Stones
7. Chemicals

Global Unsaturated Polyester Resin Market, By Regional Analysis

• North America
  • US
  • Canada
  • Mexico

• Europe
  • Germany
  • UK
  • France
  • Italy
  • Spain
  • Russia
  • Rest of Europe

• Asia Pacific
  • China
  • Japan
  • India
  • South Korea
  • Australia
  • Rest of Asia Pacific

• South America
  • Brazil
  • Argentina
  • Rest of South America

• Middle East & Africa
  • UAE
  • Saudi Arabia
  • Qatar
  • South Africa
  • Rest of the Middle East & Africa