# Japan Ductile Iron Pipes Market > Japan Ductile Iron Pipes Market Research Report: By Diameter (DN 80-300, DN 350-600, DN 700-1000, DN 1200-2000, DN2000 & above) andBy Application (Water & Wastewater, Irrigation)- Forecast to 2035 - **Forecast Period:** 2025 - 2035 - **CAGR:** 5.69% - **2024:** $ 683.81 Million - **2025:** $ 722.72 Million - **2035:** $ 1,257 Million - **Key Players:** Saint-Gobain (FR), McWane (US), U.S. Pipe (US), Kubota (JP), AMERICAN Cast Iron Pipe Company (US), Jindal Saw (IN), Ductile Iron Pipe Company (US), Hunan Valin Steel Tube (CN) **Report ID:** MRFR/PCM/54996-HCR · **Pages:** 200 · **Author:** Snehal Singh · **Last Updated:** February 06, 2026 **URL:** https://www.marketresearchfuture.com/reports/japan-ductile-iron-pipes-market-56762 --- ## Market Summary ## **Japan Ductile Iron Pipes Market Overview** The Japan Ductile Iron Pipes Market Size was estimated at 647.33 (USD Million) in 2023.The Japan Ductile Iron Pipes Industry is expected to grow from 683.81(USD Million) in 2024 to 1,082 (USD Million) by 2035. The Japan Ductile Iron Pipes Market CAGR (growth rate) is expected to be around 4.26% during the forecast period (2025 - 2035). ### **Key Japan Ductile Iron Pipes Market Trends Highlighted** In Japan, the utilization of ductile iron pipes is receiving greater attention because of the infrastructural upgrades and modernization works that are underway. Due to the aging population and urbanization, the country is paying more attention to the maintenance of the water supply and wastewater systems. This enhances the construction industry’s demands for stronger and more durable materials, pushing ductile iron pipes to the forefront because of their increased strength and durability. The incorporation of newer technologies such as IoT for remote monitoring of pipes and smart water management systems presents a greater opportunity, as operational efficiency and water loss minimization are achieved. In Japan, a noticeable shift towards greater sustainability and environmental stewardship has been observed lately. Government policies and regulations are aimed at green construction, encouraging the adoption of ductile iron pipes due to their recyclability and lower environmental impact than alternative materials. The transition to renewable energy further supports the water conserving effort, creating opportunities for effective water infrastructure. With the growing digitalization of the construction industry in Japan, ductile iron pipe manufacturers are starting to adopt automation in their production and supply chain processes. The increase in customer satisfaction and performance also reflects in the trend towards tailoring products to the precise specifications of the clients. Moreover, cooperation with the local government and water supply companies reveals an innovative and investment-friendly environment for ductile iron pipe systems which fulfills the infrastructural needs of the country while observing the legislations. ## **Japan Ductile Iron Pipes Market Drivers** - ### **Infrastructure Development and Maintenance** The Japan Ductile Iron Pipes Market Industry is set to benefit significantly from ongoing infrastructure development and maintenance initiatives within Japan. As of 2023, the Japanese government has pushed for a substantial increase in public spending for infrastructure, with a focus on upgrading water supply systems, which includes the use of ductile iron pipes. The Ministry of Land, Infrastructure, Transport and Tourism (MLIT) indicated a budget allocation exceeding 4 trillion yen for public construction projects aimed at revamping aging infrastructure, as many water supply systems are over 40 years old.The increasing demand for durable and reliable pipeline systems is projected, driven by these government initiatives and the key industry players like Japan Ductile Iron Pipe Corporation, which is gearing up to meet rising requirements in waterworks and sewage. This trend is crucial as it not only addresses the safety and reliability of water distribution but also enhances the overall resilience of urban infrastructure, which affects millions of residents in Japan. ### **Technological Advancements in Pipe Manufacturing** Technological advancements in the manufacturing processes of ductile iron pipes are a strong driver for the growth of the Japan Ductile Iron Pipes Market Industry. Innovations such as advanced casting techniques and the introduction of environmentally-friendly manufacturing processes are enhancing the quality and durability of these pipes. Japanese firms like Kubota Corporation are leveraging advanced Research and Development (R&D) to produce lighter yet equally strong ductile iron pipes, leading to easier transportation and installation.As a result, the reduction in manufacturing costs and improvement in material properties are propelling market growth. Reports from the Japan Iron and Steel Federation highlight that energy-efficient technologies can improve production efficiency by as much as 30%, further boosting the competitive advantage of localized ductile iron pipe manufacturers. ### **Growing Environmental Regulations** The increase in environmental regulations regarding water quality and waste management is another significant driver for the Japan Ductile Iron Pipes Market Industry. The Japanese government has established stringent guidelines under the Water Pollution Control Act to safeguard water resources, which has led to a rising demand for high-quality, leakage-resistant ductile iron pipes. Industry leaders, such as the Japan Water Works Association, report that adherence to these regulations has become crucial, spurring utilities to upgrade their existing infrastructure systems with more durable options.The increased scrutiny of water distribution systems has seen a 15% rise in demand for ductile iron pipes over the past five years, as they are known for their robustness and long life cycle. Such regulations are not only improving public health standards but also enhancing the quality of wastewater management across various prefectures in Japan. ## **Japan Ductile Iron Pipes Market Segment Insights** ### **Ductile Iron Pipes Market Diameter Insights** The Diameter segment within the Japan Ductile Iron Pipes Market holds significant importance as it caters to various applications in water supply, sewage, and industrial use. The market is characterized by several categories, including DN 80-300, DN 350-600, DN 700-1000, DN 1200-2000, and DN 2000 and above, each serving critical infrastructure needs. The DN 80-300 range is widely utilized in urban water distribution systems, where smaller diameters are required to ensure efficient flow rates in densely populated areas. This segment acts as a foundational component in ensuring reliable water supply to households and businesses, emphasizing its essential role in urban planning in Japan. In contrast, the DN 350-600 category significantly caters to medium-scale projects, often installed in systems requiring increased flow capacity while maintaining optimal pressure. These mid-sized pipes are crucial for municipal sewage systems and serve vital infrastructure projects, supporting Japan’s ongoing efforts to modernize its urban utilities in line with environmental standards. The larger diameters, such as DN 700-1000 and DN 1200-2000, are predominantly involved in transporting water over long distances and are central to major industrial developments. Their ability to handle substantial water flow makes them indispensable for large-scale agricultural irrigation and industrial activities, directly affecting productivity in sectors such as manufacturing and agriculture.Furthermore, the DN 2000 and above segment is pivotal for pivotal large-scale infrastructure projects, including those initiated by the government to enhance resilience against natural disasters, which Japan is particularly prone to due to its geographical location. This segment supports emergency water supply systems and flood management initiatives, showing the importance of large-diameter pipes in national security and disaster response strategies. With ongoing urbanization and increasing infrastructure investments in Japan, the Diameter segment of the Ductile Iron Pipes Market is poised for substantial growth, driven by the necessity for reliable water management solutions that meet the demands of a growing population and economy. The market dynamics reflect a balance between increasing demand for newer, more efficient piping solutions and the capability of manufacturers to innovate and enhance product offerings in line with sustainability and durability requirements specific to Japan’s environment. As water infrastructure continues to be a priority, understanding the Diameter segment's contribution to the overall market illustrates the critical role these pipes play, not just in maintenance but also in upgrading and expanding Japan’s water transport networks. With robust market statistics indicating growth trajectory, the Diameter segment emerges as a vital area of focus for industry stakeholders aiming to meet both current needs and future demands in water management across the nation. ### **Ductile Iron Pipes Market Application Insights** The Japan Ductile Iron Pipes Market exhibits robust growth prospects, particularly within the Application segment, which includes critical areas such as Water and Wastewater and Irrigation. Water and Wastewater applications are essential for ensuring efficient water supply and waste management in urban and rural areas, fulfilling a vital need in Japan’s growing population and infrastructure demands. The country's aging water and sewage systems necessitate improvements and investments in ductile iron pipe technology, providing added durability and resistance to corrosion.Meanwhile, the Irrigation sector is pivotal for Japan’s agriculture, supporting both traditional farming and innovative agri-tech practices. As climate change increasingly affects agriculture, efficient irrigation systems become more important for water conservation and crop yield optimization. Together, these applications dominate the Japan Ductile Iron Pipes Market by addressing fundamental utility needs, enhancing operational efficiency, and aligning with sustainability goals, making them indispensable for future growth and infrastructure resilience in the region. ## **Japan Ductile Iron Pipes Market Key Players and Competitive Insights** The Japan Ductile Iron Pipes Market is characterized by its robust landscape, offering a mix of established players alongside new entrants working tirelessly to innovate in product offerings and improve operational efficiencies. This market is driven by the increasing demand for efficient water management systems, infrastructure developments, and a shift towards sustainable practices in pipe manufacturing. The competitive dynamics are shaped by factors including technology advancements, regulatory compliance, and strategic collaborations. Players within this marketplace are constantly seeking to enhance their market share by leveraging their production capabilities, distribution networks, and product quality to meet both domestic and international standards.Nippon Steel Corporation stands out as a key player in the Japan Ductile Iron Pipes Market, having established itself with a formidable reputation and strong market presence. The company excels in specialized manufacturing processes that yield high-quality ductile iron pipes while ensuring adherence to sustainability norms. With significant investments in R&D, Nippon Steel Corporation continually optimizes production techniques and enhances product durability, thus giving it a competitive edge. The company's ability to leverage its extensive distribution network ensures that it meets the diverse needs of its customers efficiently. Furthermore, Nippon Steel Corporation's commitment to customer satisfaction and innovation has enabled it to maintain a strong foothold in the Japan Ductile Iron Pipes Market.Japan Cast Iron Pipes plays a vital role in shaping the landscape of the Japan Ductile Iron Pipes Market, showcasing a comprehensive portfolio of key products and services tailored to meet the demands of the region. The company leverages its rich heritage and extensive technical expertise to offer high-quality ductile iron pipes that are durable and suitable for various applications within the infrastructural ecosystem. Japan Cast Iron Pipes continually invests in modernization techniques, allowing for enhanced production efficiency and lower lifecycle costs for its customers. The company's strategic approaches reinforce its market presence within Japan, as it successfully navigates through mergers and acquisitions that bolster its operational capabilities and expand its reach. The commitment of Japan Cast Iron Pipes to deliver innovative solutions and adapt to market shifts highlights its strengths and resilience in a competitive environment, ensuring it remains a key contributor to the ductile iron pipes segment in Japan. ### **Key Companies in the Japan Ductile Iron Pipes Market Include:** - Nippon Steel Corporation - Japan Cast Iron Pipes - Sumitomo Metal Industries - Toyo Seikan - [Daido Steel](https://www.daido.co.jp/en/) - Mitsubishi Materials - Hitachi Metals - Kubota - Okinawa Ductile Iron Pipe Manufacturing - Kewpie Corporation ## **Japan Ductile Iron Pipes Market Industry Developments** The Japan Ductile Iron Pipes Market has recently seen notable developments, driven by increasing demand in the water supply and sewage sectors. Nippon Steel Corporation and Japan Cast Iron Pipes have been focusing on enhancing their production capabilities to meet the growing needs. In June 2023, Sumitomo Metal Industries announced plans for capacity expansion to cater to new infrastructure projects, reflecting a broader trend across the industry. Current affairs indicate a strong push towards sustainability, with companies like Kubota investing in eco-friendly ductile iron pipe technologies. In terms of mergers and acquisitions, as of March 2023, Daido Steel acquired a minority stake in a regional manufacturer, indicating consolidation efforts within the market. Growth in market valuation for companies like Hitachi Metals further emphasizes the robust nature of the sector, as the Japanese government’s infrastructure spending plans boost the market. Over the past few years, investments in water infrastructure have intensified, particularly since 2021, supporting the upward trend in ductile iron pipe demand and creating a competitive landscape among major players such as Toyo Seikan and Mitsubishi Materials. ## **Japan Ductile Iron Pipes Market Segmentation Insights** ### **Ductile Iron Pipes Market Diameter****Outlook** - DN 80-300 - DN 350-600 - DN 700-1000 - DN 1200-2000 - DN2000 & above ### **Ductile Iron Pipes Market Application****Outlook** - Water & Wastewater - Irrigation ## Market Drivers ### Growing Urbanization Rapid urbanization in Japan is a crucial driver for the ductile iron-pipes market. As cities expand, the demand for robust and reliable water supply and sewage systems increases. Urban areas require extensive infrastructure to support their growing populations, leading to a heightened need for durable piping solutions. Ductile iron pipes, known for their strength and longevity, are increasingly favored in urban projects. According to recent data, urban areas in Japan are projected to grow by approximately 10% by 2030, which could significantly boost the ductile iron-pipes market. This trend indicates a shift towards modern infrastructure, where ductile iron pipes play a vital role in ensuring efficient water management and waste disposal systems. ### Rising Demand for Sustainable Solutions Growing awareness of environmental sustainability is influencing the ductile iron-pipes market in Japan. As industries and municipalities seek to reduce their carbon footprints, the demand for sustainable materials and practices is on the rise. Ductile iron pipes, with their recyclability and durability, align well with these sustainability goals. The market is likely to see an increase in demand as more projects prioritize eco-friendly materials. Additionally, the potential for reduced maintenance costs and longer service life associated with ductile iron pipes further supports their appeal in sustainable infrastructure projects. This trend indicates a shift towards responsible resource management in the ductile iron-pipes market. ### Regulatory Support for Quality Standards Japan's stringent regulatory framework regarding water quality and infrastructure safety is a significant driver for the ductile iron-pipes market. The Japanese government has implemented various standards to ensure that water supply systems are both safe and efficient. These regulations often favor the use of high-quality materials, such as ductile iron, which is recognized for its resistance to corrosion and mechanical stress. The emphasis on maintaining high standards in public health and safety is likely to increase the demand for ductile iron pipes. As municipalities strive to comply with these regulations, investments in ductile iron-pipes market are expected to rise, reflecting a commitment to sustainable and reliable infrastructure. ### Technological Innovations in Manufacturing Technological advancements in the manufacturing processes of ductile iron pipes are driving growth in the market. Innovations such as improved casting techniques and enhanced alloy compositions have led to the production of pipes that are not only stronger but also lighter and more cost-effective. These advancements allow for easier installation and reduced transportation costs, making ductile iron pipes more appealing to contractors and municipalities. The ductile iron-pipes market is likely to benefit from these innovations, enhancing the overall performance and longevity of the pipes. Furthermore, the integration of smart technologies in monitoring and maintenance could further elevate the market's potential, aligning with Japan's focus on smart city initiatives. ### Increased Investment in Water Infrastructure The commitment of the Japanese government to upgrading and maintaining water infrastructure is a pivotal driver for the ductile iron-pipes market. With aging infrastructure posing challenges, there is a concerted effort to invest in modern solutions that ensure reliable water supply and waste management. Recent reports indicate that public spending on water infrastructure is expected to increase by 15% over the next five years, which could significantly impact the ductile iron-pipes market. This investment trend reflects a broader recognition of the need for sustainable and resilient infrastructure, where ductile iron pipes are likely to play a central role in future projects. ## Future Outlook The ductile iron-pipes market in Japan is projected to grow at a 5.69% CAGR from 2025 to 2035, driven by infrastructure development, urbanization, and technological advancements. **New opportunities:** - Expansion into smart water management systems - Development of corrosion-resistant coatings for enhanced durability - Partnerships with construction firms for integrated supply solutions By 2035, the ductile iron-pipes market is expected to achieve robust growth and increased market share. ## Segment Insights ### By Diameter: DN 80-300 (Largest) vs. DN 700-1000 (Fastest-Growing) In the Japan ductile iron-pipes market, the segment distribution shows that DN 80-300 holds the largest market share, primarily due to its widespread application in various infrastructure projects. Meanwhile, the DN 700-1000 segment has emerged as a key player, reflecting growing demand as it accommodates larger infrastructure needs in urban developments. The diverse uses across sectors such as water supply and sewage systems further bolster their market presence, Growth trends within this segment indicate a significant increase in demand for both DN 700-1000 and DN 1200-2000 sizes as municipalities expand water treatment facilities and upgrade aging infrastructure. The push for sustainable and efficient systems emphasizes larger pipe diameters capable of handling increased flow rates, with projects initiated under government policies focusing on improving water quality and efficiency driving this growth. DN 80-300 (Dominant) vs. DN 700-1000 (Emerging) The DN 80-300 segment, characterized by its versatility, is primarily used in residential and commercial applications, reflecting its dominant position in the market. Its size facilitates easier installation and maintenance, an advantage that resonates well with project managers. On the other hand, the DN 700-1000 segment is garnering attention as an emerging choice for larger industrial and urban developments, driven by increasing urbanization and infrastructure projects. This segment is essential for high-capacity applications, making it increasingly vital for future expansions. As demand for robust and efficient systems rises, the shift towards using larger diameter pipes signifies evolving market needs that cater to modern infrastructure requirements. ### By Type: Water & Wastewater (Largest) vs. Irrigation (Fastest-Growing) In the Japan ductile iron-pipes market, the water & wastewater segment commands the largest share, benefiting from the ongoing investments in infrastructural upgrades and the maintenance of existing water systems. This segment remains critical due to its central role in water supply and sewage systems, thus demanding robust and durable piping solutions. Moreover, the importance of reliable infrastructure in urban and rural areas further solidifies the position of this segment in the market. On the other hand, the irrigation segment is observed to be the fastest-growing segment, driven by the increasing focus on agricultural efficiency and sustainable water management practices. The rise in agricultural technologies and a substantial push towards enhancing crop yield through effective irrigation methods signify a shift in market dynamics. As farmers seek to optimize water usage, the demand for ductile iron pipes tailored for irrigation applications is set to increase significantly. Water & Wastewater (Dominant) vs. Irrigation (Emerging) The water & wastewater segment is established as the dominant force in the Japan ductile iron-pipes market, characterized by substantial utilization in municipal water systems and wastewater treatment facilities. This segment's strength lies in its reliability, long lifespan, and excellent corrosion resistance, making it a preferred choice for critical infrastructure. Conversely, the irrigation segment is emerging, with increasing adoption driven by technological advancements in agricultural practices. This segment caters to a growing need for efficient water distribution in farming, making ductile iron pipes an appealing solution due to their durability and ability to withstand varying environmental conditions. As both segments evolve, they reflect distinct yet complementary aspects of the market's overall growth strategy. ## Competitive Benchmarking The ductile iron-pipes market in Japan is characterized by a competitive landscape that is increasingly shaped by innovation, sustainability, and strategic partnerships. Key players such as Kubota (JP), Saint-Gobain (FR), and McWane (US) are actively pursuing strategies that emphasize technological advancements and regional expansion. Kubota (JP), for instance, has focused on enhancing its product offerings through research and development, aiming to meet the growing demand for durable and environmentally friendly piping solutions. Meanwhile, Saint-Gobain (FR) has been investing in digital transformation initiatives to streamline operations and improve customer engagement, thereby positioning itself as a leader in the market. Collectively, these strategies contribute to a dynamic competitive environment where companies are not only vying for market share but also striving to set industry standards.In terms of business tactics, localizing manufacturing and optimizing supply chains have emerged as critical strategies for success. The market structure appears moderately fragmented, with several key players exerting influence over various segments. This fragmentation allows for a diverse range of products and services, catering to different customer needs. However, the presence of major companies like U.S. Pipe (US) and AMERICAN Cast Iron Pipe Company (US) indicates a concentration of market power that can shape pricing and availability, ultimately impacting smaller competitors. In October Kubota (JP) announced a strategic partnership with a leading technology firm to develop smart piping solutions that integrate IoT capabilities. This move is significant as it aligns with the growing trend towards digitalization in the construction and infrastructure sectors. By leveraging advanced technologies, Kubota (JP) aims to enhance the functionality and efficiency of its products, potentially setting a new benchmark in the industry. In September Saint-Gobain (FR) launched a new line of eco-friendly ductile iron pipes designed to reduce carbon emissions during production. This initiative reflects the company's commitment to sustainability and positions it favorably in a market increasingly driven by environmental considerations. The introduction of these products may not only attract environmentally conscious customers but also comply with stricter regulations on emissions, thereby enhancing Saint-Gobain's competitive edge. In August McWane (US) expanded its manufacturing capabilities by opening a new facility in Japan, aimed at increasing production capacity and reducing lead times. This strategic expansion is likely to bolster McWane's market presence and improve its ability to respond to local demand. By investing in local manufacturing, the company may also mitigate supply chain disruptions and enhance its overall operational efficiency. As of November the competitive trends in the ductile iron-pipes market are increasingly defined by digitalization, sustainability, and the integration of advanced technologies such as AI. Strategic alliances are becoming more prevalent, allowing companies to pool resources and expertise to innovate and meet evolving market demands. The shift from price-based competition to a focus on innovation and supply chain reliability is evident, suggesting that future competitive differentiation will hinge on the ability to deliver high-quality, technologically advanced products that align with sustainability goals. ## Recent News & Developments The Japan Ductile Iron Pipes Market has recently seen notable developments, driven by increasing demand in the water supply and sewage sectors. Nippon Steel Corporation and Japan Cast Iron Pipes have been focusing on enhancing their production capabilities to meet the growing needs. In June 2023, Sumitomo Metal Industries announced plans for capacity expansion to cater to new infrastructure projects, reflecting a broader trend across the industry. Current affairs indicate a strong push towards sustainability, with companies like Kubota investing in eco-friendly ductile iron pipe technologies. In terms of mergers and acquisitions, as of March 2023, Daido Steel acquired a minority stake in a regional manufacturer, indicating consolidation efforts within the market. Growth in market valuation for companies like Hitachi Metals further emphasizes the robust nature of the sector, as the Japanese government’s infrastructure spending plans boost the market. Over the past few years, investments in water infrastructure have intensified, particularly since 2021, supporting the upward trend in ductile iron pipe demand and creating a competitive landscape among major players such as Toyo Seikan and Mitsubishi Materials. ## Report Scope | MARKET SIZE 2024 | 683.81(USD Million) | | --- | --- | | MARKET SIZE 2025 | 722.72(USD Million) | | MARKET SIZE 2035 | 1257.0(USD Million) | | COMPOUND ANNUAL GROWTH RATE (CAGR) | 5.69% (2025 - 2035) | | REPORT COVERAGE | Revenue Forecast, Competitive Landscape, Growth Factors, and Trends | | BASE YEAR | 2024 | | Market Forecast Period | 2025 - 2035 | | Historical Data | 2019 - 2024 | | Market Forecast Units | USD Million | | Key Companies Profiled | Saint-Gobain (FR), McWane (US), U.S. Pipe (US), Kubota (JP), AMERICAN Cast Iron Pipe Company (US), Jindal Saw (IN), Ductile Iron Pipe Company (US), Hunan Valin Steel Tube (CN) | | Segments Covered | Diameter, Type | | Key Market Opportunities | Increasing demand for sustainable infrastructure solutions drives growth in the ductile iron-pipes market. | | Key Market Dynamics | Rising demand for sustainable infrastructure drives innovation and competition in the ductile iron-pipes market. | | Countries Covered | Japan | ## Frequently Asked Questions **Q: What is the current market valuation of the Japan ductile iron-pipes market?** A: The market valuation was $683.81 Million in 2024. **Q: What is the projected market size for the Japan ductile iron-pipes market by 2035?** A: The projected market size is $1,257.0 Million by 2035. **Q: What is the expected CAGR for the Japan ductile iron-pipes market during 2025 - 2035?** A: The expected CAGR is 5.69% during the forecast period. **Q: Which companies are the key players in the Japan ductile iron-pipes market?** A: Key players include Saint-Gobain, McWane, U.S. Pipe, Kubota, AMERICAN Cast Iron Pipe Company, Jindal Saw, Ductile Iron Pipe Company, and Hunan Valin Steel Tube. **Q: What are the main segments of the Japan ductile iron-pipes market?** A: The main segments are categorized by diameter and type, including Water & Wastewater and Irrigation. **Q: What was the valuation of the DN 80-300 segment in 2024?** A: The valuation of the DN 80-300 segment was $150.0 Million in 2024. **Q: What is the projected valuation for the DN 2000 & above segment by 2035?** A: The projected valuation for the DN 2000 & above segment is $327.0 Million by 2035. **Q: How does the valuation of the Water & Wastewater segment compare to the Irrigation segment?** A: The Water & Wastewater segment was valued at $400.0 Million in 2024, while the Irrigation segment was valued at $283.81 Million. **Q: What is the expected growth trend for the Japan ductile iron-pipes market?** A: The market appears to be on a growth trend, with a projected increase in valuation from $683.81 Million in 2024 to $1,257.0 Million by 2035. **Q: Which segment is expected to show the highest growth in the Japan ductile iron-pipes market?** A: The DN 2000 & above segment is likely to show substantial growth, with a projected valuation increase to $327.0 Million by 2035. --- *This Markdown endpoint is provided for AI systems and LLM crawlers. 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