Aerospace Special Metal Market Size, Share, Growth, and Industry Analysis, By Type (Aluminum Alloys, Titanium Alloys, Steel Alloys, Suprer Alloys, Other), By Application (Engines, Airframes, Other), Regional Insights and Forecast to 2035

Aerospace Special Metal Market Overview

The global Aerospace Special Metal Market size estimated at USD 13952.28 million in 2026 and is projected to reach USD 26932.22 million by 2035, growing at a CAGR of 7.59% from 2026 to 2035.

The Aerospace Special Metal Market is witnessing substantial expansion due to increasing aircraft production, defense modernization programs, and rising demand for lightweight high-strength alloys across commercial and military aviation sectors. Aerospace manufacturers are heavily utilizing titanium alloys, nickel-based superalloys, stainless steel, and aluminum-lithium materials to improve fuel efficiency and structural durability. More than 52% of modern aircraft structures now include advanced special metals for thermal resistance and corrosion protection. Aerospace Special Metal Market Analysis indicates growing utilization of additive manufacturing materials, with aerospace-grade titanium powder demand increasing by over 31% in aerospace component manufacturing. 

The United States Aerospace Special Metal Market continues to dominate global aerospace manufacturing activities due to strong defense expenditure, commercial aircraft production, and advanced space exploration projects. The U.S. accounts for nearly 43% of global aerospace-grade titanium consumption, while over 61% of domestic aircraft engine components utilize nickel-based superalloys for high-temperature performance. More than 14,000 aircraft are currently operational across commercial and military fleets in the country, creating sustained demand for aerospace special metals. 

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Key Findings

• Key Market Driver: Titanium alloy adoption increased by 34%, aerospace engine superalloy utilization rose by 29%, lightweight material integration expanded by 41%, fuel-efficiency focused aircraft programs grew by 32%, and defense aerospace metal procurement advanced by 27% globally.
• Major Market Restraint: Raw material price volatility affected 38% of aerospace metal contracts, supply chain disruptions impacted 31% of aerospace component manufacturing, specialty alloy processing costs increased by 26%, and recycling inefficiencies reached nearly 22% across suppliers.
• Emerging Trends: Additive manufacturing material demand expanded by 33%, aerospace titanium powder usage increased by 36%, recycled aerospace metal integration rose by 24%, hypersonic aerospace alloy research funding climbed by 28%, and ceramic-metal composite applications grew by 19%.
• Regional Leadership: North America accounted for nearly 46% of aerospace special alloy utilization, Europe contributed approximately 29%, Asia-Pacific aerospace metal demand expanded by 35%, while Middle East defense aviation alloy procurement increased by 18% globally.
• Competitive Landscape: Top aerospace alloy manufacturers controlled approximately 57% of global supply contracts, strategic partnerships increased by 23%, aerospace R&D investment in specialty metals rose by 31%, and long-term procurement agreements expanded by nearly 27%.
• Market Segmentation: Titanium alloys represented around 39% of aerospace metal demand, nickel-based superalloys contributed 33%, aluminum alloys held approximately 18%, stainless steel applications reached 7%, and advanced composites with metal integration accounted for 11%.
• Recent Development: Aerospace metal recycling investments increased by 21%, advanced engine alloy production capacity expanded by 26%, aerospace additive manufacturing facilities grew by 24%, defense aerospace material innovation projects rose by 32%, and titanium forging upgrades advanced by 18%.

Aerospace Special Metal Market Latest Trends

The Aerospace Special Metal Market is undergoing rapid transformation with increased demand for lightweight and heat-resistant materials across next-generation aircraft manufacturing. Aerospace Special Metal Market Growth is strongly supported by rising adoption of titanium alloys in fuselage structures and jet engine systems. More than 48% of newly manufactured aircraft now utilize titanium-intensive components to reduce structural weight and improve fuel efficiency. Nickel-based superalloys continue to gain traction, particularly in turbine blades and combustion chambers, where operating temperatures exceed 1,000°C. 

Another significant Aerospace Special Metal Market Trend involves additive manufacturing and recycled aerospace alloy integration. Aerospace manufacturers are increasingly deploying 3D-printed titanium and aluminum components, reducing material waste by approximately 30%. Aerospace Special Metal Market Opportunities are also expanding through defense modernization programs and space exploration initiatives. Nearly 27% of aerospace metal innovation investments are now directed toward reusable spacecraft and hypersonic vehicle technologies. Asia-Pacific aerospace manufacturing hubs experienced more than 33% growth in specialty alloy imports due to rising commercial aircraft assembly activities. 

Aerospace Special Metal Market Dynamics

DRIVER

"Increasing demand for lightweight aerospace materials"

The Aerospace Special Metal Market is primarily driven by rising demand for lightweight, high-strength aerospace materials that improve aircraft efficiency and reduce operational costs. Titanium alloys now account for nearly 39% of advanced aerospace structural materials due to their superior strength-to-weight ratio and corrosion resistance. Aerospace Special Metal Market Research Report findings reveal that commercial aircraft manufacturers reduced structural weight by approximately 18% through advanced alloy integration. 

RESTRAINTS

"Volatility in specialty metal raw material supply"

The Aerospace Special Metal Market faces significant restraints due to fluctuating raw material availability and high processing costs associated with aerospace-grade alloys. Titanium sponge supply disruptions impacted approximately 31% of aerospace metal procurement contracts globally. Nickel and cobalt price fluctuations increased specialty alloy manufacturing expenses by nearly 26%, affecting aerospace component suppliers and OEMs. 

OPPORTUNITY

"Expansion of space exploration and defense programs"

The Aerospace Special Metal Market presents strong opportunities through expanding space exploration missions, satellite deployment programs, and military aviation modernization initiatives. Aerospace Special Metal Market Opportunities are increasing as reusable launch vehicle programs require ultra-lightweight and heat-resistant specialty alloys. More than 24% of aerospace R&D spending is now directed toward advanced materials for space propulsion systems and hypersonic aerospace platforms. 

CHALLENGE

"Complex manufacturing and certification requirements"

The Aerospace Special Metal Market continues to face challenges associated with complex manufacturing procedures, strict aerospace regulations, and precision quality control requirements. Aerospace-grade metal components often require multi-stage processing techniques, including vacuum melting, precision forging, and advanced thermal treatment systems, increasing production complexity by nearly 32%.

Aerospace Special Metal Market Segmentation

The Aerospace Special Metal Market segmentation is categorized by type and application, reflecting rising demand across aircraft manufacturing, defense aviation, and space exploration activities. Aerospace Special Metal Market Analysis indicates titanium alloys account for nearly 39% of aerospace structural material demand, while super alloys contribute approximately 33% in engine applications. By application, engines represent more than 46% of specialty metal utilization due to extreme thermal resistance requirements. Airframes contribute nearly 37% of aerospace alloy demand owing to lightweight structural integration. Aerospace Special Metal Market Trends also show increasing adoption of advanced aluminum and steel alloys for sustainable aerospace engineering and high-performance aviation systems.

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BY TYPE

Aluminum Alloys: Aluminum alloys remain one of the most widely utilized materials in the Aerospace Special Metal Market due to their lightweight properties, corrosion resistance, and manufacturing flexibility. More than 47% of commercial aircraft fuselage panels incorporate aerospace-grade aluminum alloys because of their ability to reduce structural weight while maintaining mechanical stability. Aerospace manufacturers continue adopting advanced aluminum-lithium alloys that improve fuel efficiency by lowering total aircraft mass by nearly 12%. Aluminum alloys are extensively used in wing structures, seating systems, floor beams, and cargo compartments because they offer high fatigue resistance and lower maintenance requirements compared to conventional metals. Aerospace Special Metal Market Research Report findings indicate over 58% of narrow-body aircraft components include aluminum-intensive structural assemblies. Advanced aluminum alloy systems also support sustainable aerospace engineering initiatives by enabling easier recycling and lower processing emissions.

Titanium Alloys: Titanium alloys represent one of the fastest-expanding segments in the Aerospace Special Metal Market due to their exceptional strength-to-weight ratio, corrosion resistance, and high-temperature performance. More than 39% of advanced aerospace structural systems now utilize titanium alloys in critical aircraft and spacecraft applications. Commercial aircraft manufacturers increasingly rely on titanium for landing gear systems, engine pylons, fasteners, and wing support structures because titanium reduces total structural weight while maintaining superior mechanical integrity. Aerospace Special Metal Market Insights indicate titanium usage in modern jet engines has increased by approximately 31% due to the need for lightweight high-performance components operating under extreme thermal conditions. Titanium alloys are especially important in military aerospace systems, including stealth aircraft, fighter jets, and hypersonic platforms.

Steel Alloys: Steel alloys continue to maintain a critical role in the Aerospace Special Metal Market due to their exceptional strength, wear resistance, and durability under high mechanical stress conditions. Aerospace-grade steel alloys are extensively used in landing gear systems, structural fasteners, bearings, engine shafts, and hydraulic systems where high load-bearing capacity is essential. More than 29% of aerospace landing gear assemblies utilize high-strength steel alloys capable of tolerating repeated stress cycles and impact loads during takeoff and landing operations. Aerospace Special Metal Market Analysis further indicates that stainless steel alloys account for nearly 18% of aerospace fastening systems due to superior corrosion resistance and long operational lifespan. 

Super Alloys: Super alloys represent one of the most technologically advanced segments within the Aerospace Special Metal Market, primarily due to their ability to maintain strength and corrosion resistance at extremely high temperatures. Nickel-based super alloys account for approximately 33% of aerospace engine material demand because they can operate efficiently in environments exceeding 1,000°C. Aerospace turbine blades, combustion chambers, exhaust systems, and afterburner assemblies heavily depend on super alloys to ensure long-duration operational reliability. Aerospace Special Metal Market Research Report findings indicate that more than 67% of modern jet engine turbine blades are manufactured using nickel-based super alloy compositions. Super alloys play a vital role in military aviation and hypersonic aerospace systems where thermal stress levels are substantially higher than conventional commercial aircraft environments. 

Other: The “Other” category in the Aerospace Special Metal Market includes specialty materials such as magnesium alloys, cobalt alloys, refractory metals, metal matrix composites, and hybrid aerospace materials engineered for specialized aviation applications. Magnesium alloys are increasingly utilized in aircraft interior structures and seating systems due to their ultra-lightweight properties, contributing to nearly 33% lower density compared to aluminum. Aerospace Special Metal Market Trends indicate that refractory metals such as tungsten and molybdenum are increasingly adopted in rocket propulsion and thermal shielding systems because of their ability to withstand temperatures exceeding 2,000°C. Metal matrix composites are gaining importance in next-generation aerospace systems because they combine metallic durability with lightweight composite reinforcement. 

BY APPLICATION

Engines: Aerospace engines represent the largest application segment within the Aerospace Special Metal Market due to the extreme thermal and mechanical requirements associated with aircraft propulsion systems. More than 46% of aerospace specialty metal demand originates from engine manufacturing, where nickel-based super alloys, titanium alloys, and heat-resistant steel alloys are extensively utilized. Modern aircraft turbine engines operate at temperatures exceeding 1,000°C, requiring materials with exceptional creep resistance, oxidation stability, and thermal fatigue durability. Aerospace Special Metal Market Analysis indicates that nearly 67% of turbine blade systems are manufactured using advanced nickel-based super alloys capable of sustaining prolonged high-temperature exposure.

Airframes: Airframes constitute a major application area in the Aerospace Special Metal Market due to the growing demand for lightweight yet structurally durable aircraft systems. Nearly 37% of aerospace specialty alloy consumption is linked to airframe manufacturing, including fuselage structures, wings, landing gear supports, and internal structural assemblies. Aerospace manufacturers continue emphasizing lightweight airframe engineering to improve fuel efficiency and reduce aircraft emissions. Aerospace-grade aluminum alloys account for over 48% of airframe structural materials because of their corrosion resistance and low-density properties. Titanium alloys are increasingly replacing conventional materials in critical airframe components due to their superior fatigue resistance and high mechanical strength. Advanced composite-metal hybrid systems are also gaining traction in modern airframe production. 

Other: The “Other” application segment within the Aerospace Special Metal Market includes aerospace systems such as landing gear assemblies, satellite structures, avionics enclosures, hydraulic systems, space exploration vehicles, and interior aircraft components. Specialty alloys are heavily utilized in landing gear systems because they require extremely high mechanical strength and impact resistance during repetitive aircraft operations. Nearly 29% of landing gear assemblies utilize aerospace-grade steel alloys capable of tolerating heavy stress loads and cyclic fatigue conditions. Aerospace Special Metal Market Trends also indicate increasing use of refractory metals and titanium alloys in satellite systems and reusable spacecraft due to superior corrosion resistance and thermal stability. Aircraft interiors increasingly utilize lightweight magnesium alloys and aluminum alloys to reduce total aircraft mass and improve passenger fuel efficiency performance. 

Aerospace Special Metal Market Regional Outlook

The Aerospace Special Metal Market demonstrates strong regional diversification driven by commercial aviation expansion, military aircraft modernization, and increasing investments in advanced aerospace manufacturing technologies. North America holds approximately 46% of the global market share due to large-scale aircraft production and strong defense aerospace programs. Europe contributes nearly 27% market share through advanced aerospace engineering and sustainable aviation initiatives. Asia-Pacific accounts for around 21% of aerospace specialty metal demand because of rising aircraft assembly operations and expanding defense aviation capabilities.

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NORTH AMERICA

North America remains the leading region in the Aerospace Special Metal Market, accounting for approximately 46% of total global aerospace specialty metal consumption. The region benefits from advanced aerospace manufacturing capabilities, strong defense aviation spending, and large commercial aircraft production volumes. More than 43% of global aerospace-grade titanium consumption occurs in North America due to extensive aircraft engine and structural manufacturing activities. Aerospace Special Metal Market Analysis indicates that nearly 61% of regional aerospace engine systems incorporate nickel-based super alloys for high-temperature operational performance. The United States dominates regional aerospace alloy demand because of extensive military aviation programs, reusable spacecraft development, and continuous modernization of commercial aircraft fleets. Canada also contributes significantly to the regional aerospace ecosystem through aircraft component manufacturing and aerospace material processing activities. Aerospace suppliers across the region continue investing in vacuum arc remelting, powder metallurgy, and advanced heat-treatment technologies to improve aerospace alloy consistency and durability. 

EUROPE

Europe represents approximately 27% of the Aerospace Special Metal Market and remains one of the most technologically advanced aerospace manufacturing regions globally. The region benefits from strong aircraft engineering expertise, advanced aerospace research activities, and increasing investments in sustainable aviation technologies. Aerospace Special Metal Market Insights indicate that nearly 48% of European aircraft structures incorporate lightweight aluminum and titanium alloys to support low-emission aviation programs. European aerospace engine manufacturers heavily utilize nickel-based super alloys, with approximately 58% of turbine engine components relying on heat-resistant specialty metals. Europe also maintains strong demand for aerospace super alloys because of advanced engine manufacturing operations. Nearly 63% of regional jet engine turbine systems incorporate nickel-based alloys engineered for prolonged high-temperature resistance. Aerospace recycling efficiency has improved considerably, with approximately 69% of aerospace steel waste and 72% of aluminum scrap materials being reprocessed into secondary aerospace applications. 

GERMANY Aerospace Special Metal Market

Germany holds approximately 29% share of the European Aerospace Special Metal Market due to its strong aerospace engineering capabilities, advanced metallurgical technologies, and extensive aircraft component manufacturing infrastructure. German aerospace manufacturers heavily utilize titanium alloys, aluminum-lithium systems, and nickel-based super alloys in commercial aviation, defense aerospace, and space exploration applications. Nearly 51% of aerospace structural assemblies produced in Germany incorporate lightweight specialty metals to improve aircraft efficiency and reduce emissions. Aerospace Special Metal Market Trends further indicate that over 36% of aerospace material innovation projects in Germany focus on recyclable aerospace alloys and sustainable manufacturing technologies. The German aerospace engine manufacturing sector significantly contributes to specialty alloy demand. Approximately 59% of high-temperature turbine systems manufactured in the country incorporate nickel-based super alloys engineered for thermal resistance exceeding 1,000°C.

UNITED KINGDOM Aerospace Special Metal Market

The United Kingdom Aerospace Special Metal Market accounts for approximately 18% of European aerospace specialty metal demand due to advanced aircraft engine manufacturing and defense aerospace capabilities. Aerospace engine systems remain the largest application segment within the country, with nearly 62% of aerospace propulsion components incorporating nickel-based super alloys and titanium systems. Aerospace Special Metal Market Insights reveal that over 44% of aerospace alloy demand in the United Kingdom originates from commercial aviation manufacturing and aircraft maintenance activities. The country continues investing heavily in next-generation aerospace propulsion technologies and lightweight structural systems. Titanium alloy integration in aerospace applications increased by approximately 29% across British aerospace facilities because of rising demand for fuel-efficient aircraft systems.

ASIA-PACIFIC

Asia-Pacific represents approximately 21% of the Aerospace Special Metal Market and continues experiencing rapid growth due to expanding commercial aviation fleets, increasing aircraft assembly operations, and rising defense modernization investments. China, Japan, India, and South Korea remain the primary contributors to regional aerospace alloy demand. Aerospace Special Metal Market Research Report findings reveal that specialty alloy imports across Asia-Pacific increased by approximately 33% because of rising aircraft manufacturing activities and aerospace infrastructure expansion. Defense aerospace programs across Asia-Pacific significantly contribute to specialty metal demand, particularly for combat aircraft, missile systems, and unmanned aerial vehicles. Approximately 28% of aerospace alloy procurement within the region is linked to military aerospace modernization projects. Aerospace Special Metal Market Trends additionally highlight increasing investments in reusable spacecraft technologies and hypersonic aerospace systems requiring advanced thermal-resistant metals. 

JAPAN Aerospace Special Metal Market

Japan accounts for approximately 22% of the Asia-Pacific Aerospace Special Metal Market due to its advanced aerospace engineering capabilities, precision manufacturing systems, and strong aerospace materials research infrastructure. The country is a major producer of aerospace-grade titanium alloys, supplying nearly 17% of global aerospace titanium processing capacity. Aerospace Special Metal Market Analysis indicates that approximately 56% of aerospace engine systems manufactured in Japan incorporate nickel-based super alloys for superior thermal and oxidation resistance. Japanese aerospace manufacturers continue emphasizing lightweight aircraft structures and sustainable aviation technologies. Nearly 49% of aerospace structural components produced in the country utilize advanced aluminum-lithium and titanium alloys designed to reduce aircraft mass and improve fuel efficiency.

CHINA Aerospace Special Metal Market

China represents approximately 41% of the Asia-Pacific Aerospace Special Metal Market because of expanding aircraft manufacturing operations, rising domestic aviation demand, and increasing defense aerospace investments. Aerospace Special Metal Market Growth in China is strongly supported by commercial aircraft assembly programs and rapid expansion of domestic airline fleets. More than 45% of newly manufactured aerospace structural systems in China now incorporate titanium and aluminum specialty alloys for lightweight performance and operational efficiency. The Chinese aerospace engine sector continues increasing utilization of nickel-based super alloys, with approximately 54% of regional propulsion systems incorporating advanced heat-resistant materials. Aerospace additive manufacturing adoption also expanded by nearly 29% across Chinese aerospace suppliers due to growing demand for lightweight precision-engineered components.

MIDDLE EAST & AFRICA

The Middle East & Africa Aerospace Special Metal Market accounts for approximately 6% of global aerospace specialty metal demand and continues expanding due to rising airline fleet modernization, defense procurement activities, and aerospace infrastructure development. Aerospace Special Metal Market Outlook remains positive as commercial aviation growth across Gulf countries increases demand for lightweight aerospace materials and advanced aircraft maintenance operations. Nearly 41% of aerospace structural upgrades across the region now utilize lightweight aluminum and titanium alloy systems to improve fuel efficiency and operational reliability. Defense aviation investments remain a significant growth driver across the Middle East & Africa region. Approximately 38% of specialty alloy demand originates from military aircraft procurement, missile systems, and defense aerospace modernization projects. 

List of Key Aerospace Special Metal Market Companies

• Allegheny Technologies Inc.
• Arconic
• Carpenter Technology
• VSMPO-AVISMA
• Constellium
• Kaiser Aluminum
• Timet
• Novelis
• Special Metals Corporation
• Haynes International
• KUMZ

Top Two Companies with Highest Share

• VSMPO-AVISMA: Holds approximately 18% share in aerospace-grade titanium supply with more than 30% contribution to global aerospace titanium forging activities.
• Arconic: Accounts for nearly 14% share in aerospace aluminum alloy manufacturing with over 26% involvement in commercial aircraft structural material supply.

Investment Analysis and Opportunities

The Aerospace Special Metal Market continues attracting strong investment activity due to increasing global aircraft production, defense modernization initiatives, and rising demand for lightweight aerospace materials. Approximately 34% of aerospace metallurgy investments are currently directed toward titanium alloy processing and additive manufacturing technologies. Aerospace Special Metal Market Analysis indicates that aerospace manufacturers reduced production waste by nearly 30% through advanced metal 3D-printing systems.

Defense aerospace programs represent a major investment opportunity within the market. Nearly 38% of specialty alloy procurement investments are linked to military aircraft, hypersonic propulsion systems, and advanced missile technologies. Aerospace Special Metal Market Opportunities are also expanding through sustainable aviation initiatives and recyclable aerospace alloy development. Approximately 24% of aerospace R&D projects globally now focus on reusable aerospace materials and low-emission aircraft systems. 

New Products Development

The Aerospace Special Metal Market is experiencing continuous innovation through development of advanced lightweight alloys, high-temperature super alloys, and next-generation aerospace composite-metal systems. Aerospace manufacturers are increasingly introducing titanium-aluminum hybrid alloys capable of reducing aircraft structural weight by approximately 17% while maintaining high fatigue resistance. Aerospace Special Metal Market Trends further reveal that ceramic-coated nickel super alloys improved turbine oxidation resistance by nearly 38%, extending aerospace engine operational efficiency and maintenance intervals.

New product development activities also focus heavily on additive manufacturing materials and recyclable aerospace alloys. Approximately 29% of aerospace material innovation programs are dedicated to advanced titanium powders and high-performance aluminum-lithium systems for precision aerospace manufacturing. Aerospace Special Metal Market Insights indicate that nanostructured aerospace metals improved crack resistance by nearly 22% in advanced structural applications. Aerospace suppliers are additionally introducing ultra-light magnesium-based aerospace materials for aircraft interiors and satellite systems, supporting improved payload efficiency and sustainable aerospace engineering initiatives.

Five Recent Developments

• Advanced Titanium Production Expansion: Aerospace alloy manufacturers increased aerospace-grade titanium forging capacity by approximately 24% to support rising commercial aircraft production and lightweight aerospace structure demand. Several aerospace suppliers additionally expanded vacuum remelting systems to improve titanium purity and thermal stability for aerospace propulsion applications.
• Nickel Super Alloy Innovation: Aerospace engine material suppliers introduced next-generation nickel-based super alloys with nearly 19% higher thermal fatigue resistance for turbine blade systems operating above 1,000°C. These developments improved oxidation resistance and extended aerospace engine operational lifespan significantly across commercial and military aviation applications.
• Additive Manufacturing Facility Upgrades: Aerospace manufacturers expanded metal additive manufacturing operations by approximately 28% to reduce production waste and improve complex aerospace component fabrication. Titanium powder utilization increased by nearly 31% in aerospace 3D-printing activities supporting lightweight structural systems and engine component manufacturing.
• Aerospace Recycling Enhancements: Aerospace recycling companies improved aluminum and titanium recovery technologies, increasing recyclable aerospace alloy processing efficiency by approximately 23%. More than 72% of aerospace aluminum scrap materials are now recoverable for secondary aerospace manufacturing applications supporting sustainable aviation initiatives.
• Hypersonic Aerospace Alloy Research: Aerospace defense organizations increased investments in refractory metals and thermal-resistant aerospace alloys by approximately 27% to support hypersonic propulsion systems and reusable spacecraft technologies. Advanced ceramic-coated super alloys additionally improved thermal shielding efficiency by nearly 18% in experimental aerospace systems.

Report Coverage Of Aerospace Special Metal Market

The Aerospace Special Metal Market Report provides comprehensive analysis of aerospace specialty alloy demand, manufacturing technologies, aerospace applications, regional trends, and competitive market dynamics across global aviation and defense sectors. The report evaluates titanium alloys, aluminum alloys, steel alloys, super alloys, and advanced hybrid aerospace materials utilized in commercial aircraft, military aviation systems, satellite technologies, and reusable spacecraft platforms. 

The report additionally covers aerospace additive manufacturing trends, thermal-resistant propulsion materials, aerospace recycling technologies, and sustainable aviation material developments. Approximately 35% of aerospace suppliers globally now integrate metal additive manufacturing systems into production operations. Aerospace Special Metal Market Insights further analyze defense aerospace procurement activities, advanced engine alloy utilization, and aerospace structural innovation projects.