Asia Pacific Chemical Air Separation Unit Market Size & Share 2026-2035

Asia Pacific Chemical Air Separation Unit Market Size

The Asia Pacific chemical air separation unit market was estimated at USD 1.9 billion in 2025. The market is expected to grow from USD 2 billion in 2026 to USD 3 billion in 2035, at a CAGR of 4.8%, according to latest report published by Global Market Insights Inc.

• The rapid growth of industrialization has led to a large amount of growth within the chemical air separation unit market in Asia Pacific. Growth in manufacturing processes across the chemical, steel, oil refining, and metallurgy industries has created an increased need for industrial gases such as oxygen, nitrogen, and argon. According to the International Energy Agency (IEA) Gas 2025 Report (2025), the Asia Pacific region accounts for around half of global gas demand growth through 2030, driven mainly by industry and power generation sectors.
• Air separation units are critical to producing the high-purity gases needed for chemical processing operations that are performed at an efficient and large scale. As there continues to be growth in production capacities across all industrial areas, this in turn creates a need for investment into more advanced gas separation technologies. In addition, producers are focusing on developing energy-efficient and high-capacity systems to accommodate the constant demand for those gases. As industrial expansion continues to occur in the region, this will continue to bolster growth in the overall market.
• The demand within the chemical air separation unit market in Asia Pacific is also increasing due to urbanization and growing numbers of industrial clusters and special economic zones. Many governments are currently in the process of developing dedicated industrial zones to attract more investment in the manufacturing sector and to provide for the continued economic development throughout their respective regions. These industrial clusters require a reliable supply of industrial gases through a supporting infrastructure to allow to produce the many types of products produced within those clusters.
• Manufacturers of air separation units have started to increasingly develop these units to be either on site or close to the industrial clusters to guarantee the consistent and usable supply of the required gases. Growth of cities and industrial clusters is leading to continued installation of large air separation facilities. Development of industrial clusters is also going to remain an ongoing support for growth in the chemical air separation unit market.
• The cryogenic segment dominates the Asia Pacific chemical air separation unit market due to its capability to produce high-purity industrial gases such as oxygen, nitrogen, and argon at large scale. This process separates air components by cooling atmospheric air to extremely low temperatures, enabling liquefaction and separation based on different boiling points. It is extensively used across industries including chemicals, steel manufacturing, oil and gas, and healthcare, where a continuous and reliable supply of high-purity gases is essential. Cryogenic air separation units are preferred for large-capacity applications due to their high efficiency, scalability, and operational reliability in continuous production environments. Despite higher initial capital investment, their strong long-term efficiency and ability to meet bulk industrial demand make them a cost-effective solution for large-scale operations.

Asia Pacific Chemical Air Separation Unit Market Trends

• The Asia Pacific chemical air separation unit industry is witnessing strong growth driven by rapid industrial expansion across China, India, Japan, and Southeast Asia. Increasing demand for industrial gases such as oxygen, nitrogen, and argon from chemical manufacturing, steel production, and energy-intensive industries is reinforcing the need for large-scale air separation infrastructure. Continuous commissioning of new chemical plants and industrial zones is further strengthening adoption of advanced ASU systems across the region.
• A major trend shaping the market is the rising investment in large integrated industrial complexes and chemical hubs. Governments across Asia Pacific are actively promoting industrial corridors and special economic zones to attract chemical and manufacturing investments. These facilities require uninterrupted and high-volume gas supply, leading to increased deployment of onsite air separation units. This shift toward integrated production ecosystems is supporting long-term demand stability for ASU installations in chemical applications.
• Another key trend is the growing emphasis on energy-efficient and technologically advanced air separation systems. Manufacturers are focusing on improving cryogenic processes, reducing power consumption, and enhancing operational efficiency due to the high energy intensity of ASU operations. Digital monitoring systems and automation are increasingly being integrated to improve reliability and reduce downtime. Technological advancements are also enabling better scalability and customization for chemical industry requirements, making modern ASUs more cost-effective over their lifecycle.
• The market is also benefiting from strong policy support and sustainability-driven industrial transformation across the region. Governments are encouraging low-carbon production methods and cleaner industrial operations, which is boosting demand for efficient gas separation technologies. Chemical manufacturers are aligning with environmental compliance standards and ESG goals, leading to increased adoption of advanced ASU systems. This regulatory and sustainability push is accelerating modernization of existing infrastructure across the chemical sector.
• At the same time, industrial diversification and expansion of end-use applications are further strengthening demand. Beyond traditional chemical manufacturing, ASUs are increasingly used in electronics, pharmaceuticals, food processing, and energy-related applications across Asia Pacific. Rising industrial output and export-oriented production are also contributing to higher gas consumption. This broadening application base is making air separation units a critical backbone technology for multiple high-growth industries in the region.

Asia Pacific Chemical Air Separation Unit Market Analysis

Based on technology, the Asia Pacific chemical air separation unit market is categorized into cryogenic and non-cryogenic. The cryogenic segment accounted for revenue of around USD 1.3 billion in 2025 and is anticipated to grow at a CAGR of 4% from 2026 to 2035.

• The cryogenic segment dominates the market due to its capability to produce high-purity gases such as oxygen, nitrogen, and argon in large volumes. This technology separates atmospheric air by cooling it to extremely low temperatures, enabling liquefaction and efficient separation based on different boiling points. It is widely used in large-scale industries such as chemicals, steel, refining, and energy, where a continuous and reliable supply of industrial gases is essential.
• Cryogenic systems offer high efficiency, scalability, and operational reliability for long-duration applications. Although they require high initial investment, their long-term cost efficiency improves significantly with large output levels. Rising demand for bulk industrial gases and ongoing expansion of process industries further support adoption, reinforcing the dominance of cryogenic technology in the market.

• The nitrogen segment holds the largest share in the market due to its extensive application across multiple industries. Nitrogen is widely used for inerting, blanketing, purging, and cooling processes in sectors such as chemicals, food processing, pharmaceuticals, and electronics. Its non-reactive nature makes it essential for maintaining safe operating environments and preventing oxidation or contamination during production and storage.
• Growing demand for nitrogen in packaging, manufacturing, and industrial processing activities is further driving segment growth. In addition, its relatively low production cost compared to other industrial gases supports widespread adoption across end-use industries. The combination of versatility, safety benefits, and high consumption volume reinforces the strong leading position of nitrogen in the market.

Based on supply mode, Asia Pacific chemical air separation unit market consists of on-site, merchant, pipeline, and cylinder. The on-site segment leads the total market share in 2025 and is anticipated to grow significantly from 2026 to 2035.

• The on-site segment leads the Asia Pacific chemical air separation unit industry as industries increasingly prefer on-site gas generation for uninterrupted supply and improved cost efficiency. On-site systems eliminate the need for transportation, storage, and external procurement of gases, thereby reducing logistical challenges and operational risks. These systems are particularly suitable for large-scale industries such as chemicals, steel, and refining, where continuous and high-volume gas demand is essential.
• On-site generation also enhances operational control, reliability, and process integration within industrial facilities. Advances in modular plant design, automation, and energy-efficient technologies are further supporting adoption. The combination of supply security, reduced operational costs, and improved efficiency reinforces the dominance of the on-site segment in the market.

China Chemical Air Separation Unit Market

China dominates the Asia Pacific market and valued at USD 1.3 billion in 2025 and is estimated to grow at a CAGR of 4.5% from 2026 to 2035.

• China leads the Asia Pacific chemical air separation unit industry due to its large-scale industrial base and strong demand for industrial gases across steel, chemicals, electronics, and energy sectors. Rapid expansion of petrochemical complexes and gasification projects is driving significant deployment of high-capacity air separation units. These systems are essential for producing oxygen, nitrogen, and argon used in combustion processes, refining, and chemical synthesis.
• Government focus on industrial modernization and emission reduction is accelerating adoption of energy-efficient cryogenic and advanced separation technologies. Domestic manufacturers dominate supply with cost-competitive, large-scale solutions tailored for heavy industry. EPC contractors play a central role in project execution for new industrial clusters. Continuous industrial expansion and demand for high-purity gases support sustained market leadership.

India Chemical Air Separation Unit Market

In the Asia Pacific market, India held 9.4% market share in 2025 and is anticipated to grow at a CAGR of 5.5% from 2026 to 2035.

• India’s chemical air separation unit industry is expanding steadily, driven by growing demand from steel production, chemicals, pharmaceuticals, and power generation industries. Increasing industrialization and infrastructure development are boosting the need for reliable oxygen and nitrogen supply systems. Air separation units are widely used in metallurgical processes, wastewater treatment, and chemical manufacturing to improve operational efficiency and process control.
• Demand is particularly strong for mid-scale and cost-efficient cryogenic and non-cryogenic systems suitable for emerging industrial clusters. Government initiatives supporting manufacturing growth and industrial gas infrastructure are further encouraging adoption. Domestic and international players operate through EPC-based project execution models. Expanding industrial capacity and rising energy demand continue to support long-term market growth in India.

Japan Chemical Air Separation Unit Market

In the Asia Pacific market, Japan held 11.5% of market share in 2025 and is anticipated to grow at a CAGR of 6.2% from 2026 to 2035.

• Japan’s chemical air separation unit industry is characterized by advanced technology adoption and high demand for precision industrial gas production. Industries such as electronics, specialty chemicals, pharmaceuticals, and steel manufacturing rely heavily on ultra-pure oxygen and nitrogen for critical processes. The market emphasizes energy-efficient and compact cryogenic systems designed for high reliability and stable performance. Strong environmental regulations and industrial efficiency standards drive continuous innovation in low-emission and high-efficiency separation technologies.
• Japanese manufacturers focus on precision engineering, automation integration, and long equipment lifecycle performance. Air separation units are also increasingly integrated with hydrogen production and clean energy systems. EPC contractors and specialized engineering firms support project execution. Stable industrial demand and technological advancement sustain steady market development in Japan.

Asia Pacific Chemical Air Separation Unit Market Share

• In 2025, the prominent manufacturers in Asia Pacific chemical air separation unit industry Hangyang, Linde plc, Hangyang, Air Liquide, TAIYO NIPPON SANSO (TNSC), and Sichuan Air Separation Plant Group collectively held the market share of ~53.7%.
• Hangyang Group is a leading Chinese manufacturer of air separation equipment and systems. The company focuses on cost-efficient, large-capacity ASUs tailored for domestic chemical and industrial markets. Its strategy includes expansion in EPC services, localization of manufacturing, and partnerships with Chinese petrochemical companies. Hangyang benefits from strong domestic demand and government-backed industrial growth, strengthening its position in Asia.
• Linde plc holds a dominant position in the Asia Pacific chemical air separation unit market due to its integrated industrial gas model and global plant network. The company focuses on large-scale cryogenic ASUs supplying oxygen, nitrogen, and argon to chemical and petrochemical facilities. Its strategy includes long-term on-site contracts, hydrogen integration, and expansion in clean energy applications. Linde also invests in energy-efficient ASU technologies, improving operational performance and cost efficiency.

Asia Pacific Chemical Air Separation Unit Market Companies

Major players operating in the Asia Pacific chemical air separation unit industry include:

• Top Global Players
  • Air Liquide
  • Linde plc
  • Air Products and Chemicals, Inc.
  • TAIYO NIPPON SANSO CORPORATION
  • AIR WATER INC.
  • Hangyang
  • Messer Group
• Regional Champions
  • Yingde Gases
  • Sichuan Air Separation Plant Group
  • KaiFeng Air Separation Group Co., LTD.
  • INOX Air Products
  • SIAD Macchine Impianti
  • Air Water Plant & Engineering Inc.
  • Iwatani Corporation
• Emerging & Specialized Players
  • Nikkiso Clean Energy & Industrial Gases Group
  • Atlas Copco Gas and Process
  • Sumitomo Seika Chemicals Co., Ltd.
  • Kobelco Compressors Corporation
  • PT Samator Gas Industri
  • Southern Industrial Gases Sdn Bhd (SIG)
  • Yatai Industrial Gases Group

Air Liquide is a major competitor with strong capabilities in large-scale ASU design and operation. The company focuses on supplying high-purity gases for chemical processing, refining, and energy sectors. Its strategy includes investment in low-carbon technologies, hydrogen infrastructure, and digital plant optimization. Air Liquide also benefits from long-term customer contracts and a global network of industrial gas facilities, supporting stable revenue generation.

TAIYO NIPPON SANSO specializes in advanced gas technologies and cryogenic air separation systems. The company focuses on high-purity gas supply for chemicals, electronics, and industrial applications. Its strategy includes technological innovation, expansion in Asia, and integration with industrial gas supply chains. TNSC also benefits from strong parent group support and established relationships with industrial customers across Japan and Southeast Asia.

Sichuan Air Separation Plant Group is a key regional player focusing on design and manufacturing of ASUs for chemical and industrial applications. The company emphasizes cost-effective solutions and large-scale plant construction. Its strategy includes expanding production capacity and strengthening presence in domestic and export markets. Sichuan benefits from growing demand in China’s chemical and metallurgy industries.

Asia Pacific Chemical Air Separation Unit Industry News

• In February 2025, Air Liquide announced it will build, own, and operate a new large-scale air separation unit on Naoshima Island, Japan. The facility is designed to supply oxygen, nitrogen, argon, and neon for industrial applications.

The Asia Pacific chemical air separation unit market research report includes in-depth coverage of the industry, with estimates & forecast in terms of revenue (USD Billion) and volume (Thousand Units) from 2022 to 2035, for the following segments:

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Market, By Technology

• Cryogenic 
• Non-cryogenic 

Market, By Gas Type

• Oxygen
• Nitrogen
• Argon
• Others

Market, By Supply Mode

• On-Site
• Merchant
• Pipeline
• Cylinder

Market, End-Use Industry

• Iron & steel
• Chemical & petrochem
• Oil & gas
• Healthcare
• Electronics/semi
• Food & beverage
• Glass & metal fab
• Others

The above information is provided for the following countries:

• China
• Japan
• India
• South Korea
• Australia
• Philippines
• Thailand
• Vietnam