内容概要：近年来，随着国民收入水平不断提高，消费者对珠宝首饰的需求逐渐增加，不仅注重产品的 实用性，更追求品牌、设计和个性化，电子商务平台为消费者提供了丰富多样的珠宝选择，满足了不同 层次消费者的需求，此外，随着互联网的普及和电子商务的发展，消费者越来越习惯在线上购物，尤其 是年轻一代消费者，他们更倾向于通过网络购买珠宝首饰，享受便捷的购物体验，在此背景下，我国珠 宝电子商务市场迅速崛起，据中国珠宝玉石首饰行业协会数据显示，2023年我国珠宝电子商务零售额达 3397.5亿元，同比增长26.21%，2024年，在我国商品零售市场增速放缓的不利背景下，金银珠宝作为非 必需品，与整体市场走势同频共振，其降幅居所统计的全部商品类别的首位，据中国珠宝玉石首饰行业 协会数据显示，2024年中国珠宝电子商务零售额降至2982.6亿元。 上市企业：曼卡龙（300945）、迪阿股份（301177）、老凤祥（600612）、中国黄金（600916）、航民 股份（600987）、菜百股份（605599）、豫园股份（600655）、萃华珠宝（002731）、周生生 （00116.HK）、潮宏基（002345）、明牌珠宝（00257 ...

内容概要：乙烯是世界上产量最大的化学产品之一，乙烯工业是石油化工产业的核心，乙烯产品占石化 产品的75%以上，在国民经济中占有重要的地位，近年来，随着我国包装、农业、建筑、纺织、电子电 器、汽车等终端应用市场的飞速发展，带动乙烯市场需求快速增长，据统计，2023年我国乙烯表观消费 量达3610.4万吨，同比增长16.88%，2024年受国内有效需求不足等诸多因素影响，我国乙烯消费增速有 所放缓，2024年我国乙烯表观消费量为3708.0万吨，同比增长2.70%，同年产量为3493.4万吨，需求缺 口主要来源于进口。 上市企业：中国石化（600028）、恒力石化（600346）、中国海油（600938）、中国石油（601857）、 东方盛虹（000301）、荣盛石化（002493）、中国三江化工（02198.HK） 相关企业：陕西延长石油（集团）有限责任公司、浙江石油化工有限公司、辽宁宝来企业集团有限公 司、连云港石化有限公司、中海壳牌石油化工有限公司、山东裕龙石化有限公司、福建联合石油化工有 限公司、宁夏宝丰能源集团股份有限公司、上海赛科石油化工有限责任公司 关键词：乙烯发展背景、乙烯产业链、乙烯市场供需现状 ...

Core Viewpoint - The acrylic industry in China is transitioning to a weak balance phase after significant adjustments in supply and demand, with production expected to rise from 580,000 tons in 2019 to 620,000 tons by 2024, while demand slightly decreases from 643,000 tons to 619,300 tons during the same period, indicating a narrowing supply-demand gap and deepening domestic substitution process [1][10]. Industry Development Overview - Acrylic, also known as polyacrylonitrile, is a high molecular compound primarily used to produce acrylic fibers, which are known for their good weather resistance and vibrant dyeing capabilities, but have limitations in moisture absorption and wear resistance [2]. Policy Background - The acrylic industry is influenced by dual policies focusing on environmental governance and industrial upgrading, with the Ministry of Ecology and Environment emphasizing pollution control in the chemical fiber sector and promoting energy efficiency improvements [5][6]. Industry Chain - The acrylic industry chain relies on acrylonitrile as a core raw material produced by petrochemical companies, with vertical integration accelerating as leading companies establish their own acrylonitrile facilities to enhance cost control and extend into high-value areas like carbon fiber [8]. Current Industry Status - China produces over 30% of the world's acrylic fabrics and garments, with a significant shift in supply-demand dynamics leading to a narrowing gap by 2024, driven by capacity clearance and technological upgrades [10]. Trade Dynamics - The import-export landscape of the acrylic industry shows a reduction in imports from 89,000 tons to 44,400 tons and an increase in exports from 26,000 tons to 45,100 tons from 2019 to 2024, indicating enhanced international competitiveness of domestic acrylic products [12]. Competitive Landscape - The competitive landscape features a concentration of leading firms like Jilin Chemical Fiber, which has achieved a compound annual growth rate of 9.6% in revenue from 2020 to 2024, while international giants are also investing in high-end material development [14][16]. Development Trends - The acrylic industry is expected to accelerate the integration of green low-carbon technologies, aiming for a 30% reduction in carbon footprint through innovations in raw materials and recycling systems, while also developing high-performance differentiated products for emerging markets [18].

Core Viewpoint - The oxygen sensor industry in China is experiencing significant growth and technological advancements, driven by increasing demand in automotive emissions control, industrial applications, and emerging fields such as healthcare and smart manufacturing. The market size is projected to reach 20.901 billion yuan in 2024, with a year-on-year growth of 28.98% [1][11]. Industry Overview - Oxygen sensors are devices used to detect the oxygen content in gases or liquids, providing feedback signals to optimize system performance. They operate similarly to batteries, utilizing zirconia ceramics to generate measurable voltage signals through oxygen concentration differences [2]. Industry Development History - The development of the oxygen sensor industry in China has gone through three main stages: 1. Initial stage (1950s-1980s) focused on high-end applications with reliance on imports and limited domestic production capabilities [4]. 2. Technology introduction and independent research phase (1990s-early 2000s) where domestic companies began to absorb foreign technology and improve product quality [5]. 3. Rapid development phase (early 21st century) supported by national policies and increasing environmental requirements, leading to widespread applications in emissions control and industrial efficiency [5]. Industry Supply Chain - The upstream of the oxygen sensor industry includes raw materials such as zirconia, titanium dioxide, and precious metals, while the midstream involves the manufacturing of oxygen sensors. The downstream applications span automotive, industrial, healthcare, environmental monitoring, smart home, and aerospace sectors [7]. Market Size - The Chinese oxygen sensor market is expected to reach 20.901 billion yuan in 2024, with a significant increase in demand due to the implementation of the National VI emission standards and stricter environmental regulations in industries like steel and chemicals [11]. Key Companies' Performance - The competitive landscape of the oxygen sensor industry features international giants like Bosch and DENSO, alongside domestic players such as Anpeilong Technology and Sifang Optoelectronics. Anpeilong has achieved a full supply chain control in oxygen sensor production, while Sifang has made breakthroughs in nitrogen-oxygen sensor technology [12][17]. Industry Development Trends 1. **Technological Upgrades and Smart Integration**: The industry is moving towards smart, multifunctional oxygen sensors that integrate advanced technologies such as wireless transmission and self-diagnosis, enhancing operational efficiency and maintenance [19]. 2. **Diversified Market Demand**: The demand for oxygen sensors is diversifying across various sectors, including automotive, healthcare, and industrial applications, driven by the growth of electric vehicles and smart devices [21]. 3. **Accelerated Domestic Substitution and Policy Support**: The domestic substitution process is gaining momentum, supported by government policies that encourage the development of the sensor industry, reducing reliance on imports and enhancing the competitiveness of local companies [22].

Core Viewpoint - The ultra-white glass industry in China is experiencing rapid growth, driven by urbanization and renovation trends, with a projected market size increase from 5 billion yuan in 2018 to 18 billion yuan by 2024, reflecting a compound annual growth rate of 23.8% [1][16]. Industry Overview - Ultra-white glass, known for its high transparency and light transmittance of over 91.5%, significantly surpasses float glass's 86%, making it ideal for high-end applications in architecture, electronics, luxury vehicles, and solar energy [1][3]. - The industry is characterized by its unique properties, including low self-explosion rates, color consistency, and high visible light transmittance, which enhance its market appeal [5][6]. Industry Development History - The development of ultra-white glass began in the 1950s in developed countries, with significant advancements in production technology occurring in the 1960s and 1970s, leading to increased demand in the 1980s and 1990s due to urbanization and quality building requirements [8]. - The 21st century has seen ultra-white glass expand into high-tech industries, including solar energy and electronics, driven by growing environmental awareness and demand for energy-efficient products [8]. Industry Chain - The ultra-white glass industry chain includes raw material supply, production processing, product sales, and end-use applications, with upstream materials such as soda ash, quartz sand, and limestone being critical [10]. - The downstream applications encompass construction glass, photovoltaic glass, automotive glass, and electronic glass, indicating a comprehensive interdependence within the industry [10]. Market Dynamics - The ultra-white glass market is projected to grow significantly, with the market size expected to reach 18 billion yuan by 2024, driven by technological innovations and policy support [1][16]. - The production of photovoltaic glass, a key application of ultra-white glass, is anticipated to increase from 5.6362 million tons in 2018 to 29.27 million tons by 2024, with a compound annual growth rate of 31.6% [13]. Key Companies - Major players in the ultra-white glass market include China Southern Glass Group, Fuyao Glass, and Flat Glass Group, which are leveraging technological advancements and competitive pricing strategies to capture market share [18][20][22]. - China Southern Glass Group is recognized as a leading brand in energy-saving glass and solar photovoltaic products, with projected revenue of 13.756 billion yuan in 2024 [20]. - Fuyao Glass has successfully localized photovoltaic glass production, achieving quality comparable to international leaders, with projected revenue of 16.816 billion yuan from photovoltaic glass in 2024 [22]. Future Trends - The ultra-white glass industry is expected to deepen its applications in energy-saving and environmentally friendly sectors, particularly in photovoltaic components and passive buildings [25]. - Innovations in smart interactive scenarios are anticipated, with ultra-white glass being integrated into smart home technologies and automotive displays, enhancing user experience and functionality [26].

Core Insights - The AI learning machine market in China is experiencing significant growth driven by the ongoing demand for quality education and the transition of K12 tutoring institutions towards AI educational hardware [1][18] - In 2024, the total sales volume of AI learning machines is projected to reach 5.923 million units, representing a year-on-year increase of 25.5%, with sales revenue expected to hit 19.06 billion yuan, a 37.6% increase from 2023 [1][18] - The introduction of AI learning machines into the "National Subsidy" directory since 2025 has reduced consumer costs, further stimulating market demand [1][18] - The first quarter of 2025 saw a sales volume of 1.265 million units, a 29.4% year-on-year increase, with sales revenue of 4.02 billion yuan, up 15.8% [1][18] AI Learning Machine Industry Overview - AI learning machines integrate artificial intelligence technology to provide personalized learning experiences, adapting to individual learning paths [3][5] - The market for educational smart hardware, including AI learning machines, is expected to grow from 73.9 billion yuan in 2024 to 80.5 billion yuan by 2025, with a compound annual growth rate of 8.92% [7][18] Market Dynamics - The online sales channel dominates the AI learning machine market, accounting for 66.5% of total retail volume in 2024, with significant growth in content e-commerce [20][22] - The average price of AI learning machines in the first quarter of 2025 was 3,164 yuan, with a notable shift towards mid-range products priced between 2,000 and 3,999 yuan, which now represent over 50% of sales [22][24] Competitive Landscape - The market is highly concentrated, with six major brands—Homework Help, Xueersi, iFLYTEK, BBK, Xiaoyuan, and Baidu—holding a combined market share of 74.4% in the first quarter of 2025 [27] - iFLYTEK has launched the "Xunfei Spark" cognitive model, enhancing its product offerings with features like AI homework correction and real-time English conversation [24][29] Industry Trends - The future of AI learning machines will focus on personalized learning experiences driven by AI, integrating high-quality educational content and advanced hardware features [34][35] - The market is expected to penetrate lower-tier cities and rural areas, leveraging flexible pricing models and expanding ecosystem connections with other educational tools [36]

Core Viewpoint - The demand for rotor compressors in China's household air conditioning and related markets is increasing due to the government's "old-for-new" policy and manufacturers' proactive stocking in response to market pressures and weather forecasts, leading to a growth trend in production and sales in the rotor compressor industry [1][7]. Industry Overview - Rotor compressors, driven by electric motors, are widely used in air conditioning, dehumidifiers, and heat pumps, characterized by their simple structure, fewer wear parts, reliability, and lightweight [2][3]. - The rotor compressor market in China is primarily driven by household air conditioning, which holds a market share of 88.3%, followed by heat pumps at approximately 5.2% [5]. Production and Sales Data - In 2024, China's rotor compressor production and sales are projected to reach 296 million units and 297 million units, respectively, with year-on-year growth rates of 13.5% and 14.1% [1][10]. - Domestic sales of rotor compressors are expected to grow by 12.3% to 253 million units, while export volume is anticipated to increase by 24.8% to 44.88 million units [1]. Policy Support - The Chinese government has implemented several policies to stimulate domestic consumption, including promoting the replacement of old appliances, which has positively impacted the sales of rotor compressors [7][8]. Competitive Landscape - The market for rotor compressors has shifted from foreign brand dominance in the 1990s to a significant presence of domestic brands like GMCC, Landa, and Haili, which together hold a market share of 86.6% as of 2021 [10]. - GMCC leads the market with a share of 44.8%, followed by Landa and Haili, whose combined market share is 33.4% [10]. Development Trends 1. **Diversification of Application Scenarios** - Rotor compressors are expanding from traditional household air conditioning to emerging fields such as heat pumps and electric vehicles, driven by energy crises and carbon neutrality goals [17]. 2. **Accelerated Replacement of Eco-friendly Refrigerants and Technological Upgrades** - The industry is transitioning to low GWP refrigerants like R32 and R290, with a focus on improving energy efficiency and adapting to environmental regulations [18][19]. 3. **Accelerated Globalization and Export Market Expansion** - Chinese rotor compressor companies are increasingly entering international markets, with significant growth in exports, exemplified by Haili's 35.1% increase in export volume in 2024 [20].

Core Viewpoint - The intelligent license plate recognition system is becoming an essential part of modern traffic management, significantly improving efficiency and accuracy in various applications such as highway tolls, urban traffic management, and security monitoring [1][14]. Industry Overview - The license plate recognition system utilizes advanced technology to monitor and identify vehicle license information in real-time, playing a crucial role in modern intelligent traffic management [3]. - The market size of China's license plate recognition system industry reached 1.556 billion yuan in 2023, with an expected growth to 2.398 billion yuan by 2029, reflecting a compound annual growth rate (CAGR) of 7.47% [1][14]. Industry Chain - The upstream of the license plate recognition system industry includes components such as chips, sensors, displays, power supplies, and enclosures, with chips being the core component for image processing [8]. - The downstream applications encompass traffic management, vehicle monitoring, and parking management, highlighting the system's versatility in various sectors [8]. Competitive Landscape - The license plate recognition system industry is characterized by low concentration, with numerous small-scale enterprises. Major players include Hikvision, Dahua Technology, and Jieshun Technology, each leveraging their strengths in video monitoring and parking management [16][17]. Development Trends - Multi-modal recognition is identified as a future trend, integrating various sensors and data sources for enhanced vehicle identification and monitoring [21]. - Product differentiation is crucial for competitive advantage, necessitating improvements in service quality, functionality, and customization to meet diverse customer needs [22]. - Increased emphasis on data security and privacy protection is anticipated, driven by regulations such as the Personal Information Protection Law in China, requiring companies to adopt advanced data management practices [24].

内容概要：赣州市是江西省地级市，同时也是省域副中心城市、Ⅱ型大城市，位于江西省南部。近年 来，赣州市大力实施科技创新赋能行动，制定出台"7510"行动计划及7条制造业重点产业链现代化建设 提升行动方案，在优化创新生态、培育壮大创新主体、建强重大创新平台、开展技术研发攻关等方面不 断革新，赣南老区更具"科技范"，发展的动能更强劲。赣州的千亿级产业、千亿级园区、百亿级企业方 阵不断壮大，形成了现代家居、有色金属和新材料、电子信息、纺织服装4个千亿产业集群。 上市企业：中国稀土（000831）、天音控股（000829）、金力永磁（300748）、孚能科技（688567）、 逸豪新材（301176）、九丰能源（605090）、天键股份（301383）、美克家居（600337）、腾远钴业 （301219）、章源钨业（002378） 相关企业：美克国际家居用品股份有限公司、赣州市大自然家居有限公司、美克数创（赣州）家居智造 有限公司、江西怡良实业有限公司、江西维平创业家具实业有限公司、赣州江钨新型合金材料有限公 司、赣州市裕泰锡业有限公司、赣州市海龙钨钼有限公司、江西省鑫盛钨业有限公司、崇义县银通矿业 有限公司、富联精密 ...

Industry Overview - The total supply of egg poultry feed in China is stabilizing but undergoing structural adjustments, with production experiencing a decline of approximately 3.5% from peak levels by 2024 due to feed formulation optimization, improved farming efficiency, and a decrease in raw material prices [1][11] - The proportion of egg poultry feed in the overall feed industry has decreased from 36.9% in 2012 to 24.9% in 2024, reflecting the strong demand for feed driven by the expansion of meat poultry farming [11] Policy Background - Current policies focus on ensuring food security and promoting high-quality development in animal husbandry, emphasizing technological innovation, structural optimization, and regulatory improvements [5] - The policy framework includes initiatives for reducing soybean meal usage, promoting low-protein diversified diets, and establishing a comprehensive safety supervision mechanism from raw material procurement to end products [5][6] Industry Chain - The upstream of the egg poultry feed industry relies on major raw materials like corn and soybean meal, with efforts to stabilize quality and reduce price volatility through diverse procurement channels and green processing technologies [7] - The midstream focuses on developing low-protein diets and functional additives, while the downstream is transitioning towards large-scale operations to enhance production efficiency [7][9] Current Market Dynamics - The egg poultry feed industry is characterized by a highly concentrated competitive landscape, with leading companies like New Hope Liuhe and Haida Group dominating the market through full industry chain layouts and technological advantages [13][15] - Smaller companies face significant competitive pressure, with some experiencing declines in sales due to strategic adjustments and lack of scale [13][15] Development Trends - The egg poultry feed industry is accelerating towards precision and environmental sustainability, with a focus on biotechnological advancements and smart production as core drivers [17] - The market concentration is increasing, with leading firms leveraging mergers and technological barriers to establish monopolistic advantages, while smaller enterprises are exiting the market due to pressures from environmental investments and technological upgrades [17]