股份發行人及根據《上市規則》第十九B章上市的香港預託證券發行人的證券變動月報表 截至月份: 2026年2月28日 狀態: 新提交 致：香港交易及結算所有限公司 公司名稱: 中國聯塑集團控股有限公司 呈交日期: 2026年3月3日 I. 法定/註冊股本變動 | 1. 股份分類 | 普通股 | 股份類別 | 不適用 | | 於香港聯交所上市 (註1) | | 是 | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 證券代號 (如上市) | 02128 | 說明 | | | | | | | | | | 法定/註冊股份數目 | | | 面值 | | 法定/註冊股本 | | | 上月底結存 | | | 20,000,000,000 | HKD | | 0.05 HKD | | 1,000,000,000 | | 增加 / 減少 (-) | | | | | | HKD | | | | 本月底結存 | | | 20,000,000,000 | HKD | | 0.05 HKD | | 1,000,000,000 | 本月底法定/註冊股本總額： HKD ...

Investment Rating - The report suggests a positive outlook for the electronic inflation chain and oil chain sectors, indicating potential price increases and strong demand in various materials [1][2][3]. Core Insights - The electronic inflation chain is expected to see price increases in early March due to strong downstream demand from AI materials and new product launches, with a successful price transmission anticipated [1]. - The oil chain is impacted by rising oil prices, leading to cost increases for products like asphalt, with companies adjusting prices accordingly [2]. - Companies like Keda, Huaxin, and Leshushi are highlighted for their expansion into international markets, particularly in Africa and South America, indicating a strategic focus on local manufacturing and job creation [3]. Summary by Sections Electronic Inflation Chain - Strong demand for AI materials is driving price increases in electronic fabrics and copper foil, with expectations for smooth price transmission in March [1]. - The report emphasizes the ongoing trend of AI displacing traditional production capacities in various sectors, including storage and electronic fabrics [1]. Oil Chain - The report notes that the cost of asphalt has risen from 3,000 RMB/t to 3,350 RMB/t, prompting companies to increase prices by 5%-10% for related products [2]. - The report highlights the potential for coal chemical alternatives to gain traction as oil prices rise, suggesting increased capital expenditure in this area [2]. International Expansion - Keda's establishment of a glass factory in Ghana is noted as a significant development, with expectations for local job creation and reduced costs for construction and automotive needs [3]. - Leshushi's inclusion in the Hang Seng Composite Index is also highlighted, indicating its growing market presence and liquidity [3]. Market Performance - The report provides insights into the performance of various materials, with cement prices averaging 339 RMB/ton, down 52 RMB/ton year-on-year, and glass prices showing a slight increase [4][15]. - The overall building materials index has shown a positive performance, with specific sectors like glass manufacturing and fiberglass seeing notable gains [18].

Group 1 - The report emphasizes the strengthening of supply logic in the building materials industry due to carbon neutrality policies, with a continued price increase for copper-clad laminates (CCL) and adjustments in real estate policies in Shanghai [2][14][20] - The implementation of differentiated electricity pricing policies across provinces is expected to promote technological advancements and energy-saving measures in high-energy-consuming industries, aiding in the elimination of outdated production capacity [14][15] - The report highlights a significant price increase of over 30% for CCL and adhesive films by Resonac, driven by the ongoing shortage and rising costs of key raw materials [18][19] Group 2 - The building materials industry is experiencing a recovery in demand, particularly in the consumer building materials sector, which is expected to see stable long-term demand and improved profitability for leading companies [29][32] - The national cement market price has decreased by 0.8% week-on-week, but there is potential for price increases as demand recovers [29][33] - The report notes a slight increase in float glass prices, while the trading of photovoltaic glass remains sluggish, indicating a mixed outlook for the glass segment [29][34] Group 3 - The report suggests that the building materials sector is at a historical valuation low, with potential for significant recovery in profitability as supply-side improvements support the market [29][30] - Key companies in the consumer building materials sector, such as Three Trees, Rabbit Baby, and Oriental Yuhong, are highlighted for their resilience and growth potential amid a challenging market environment [29][32] - The report indicates that the glass fiber and carbon-based composite materials sector is expected to see price increases in electronic yarns and fabrics, driven by stable demand and competitive dynamics [29][34]

Company - China Liansu (2128.HK) experienced a significant stock price increase, rising by 7.37% to HKD 7.14, marking a nearly three-year high since mid-March 2023, with a year-to-date increase of approximately 54% [1] - Guojin Securities highlights that PVC pipes, primarily used for building drainage and electrical wire sheathing, have low product prices and severe homogeneity, with differentiation based on cost advantages. Increasing production scale can achieve economies of scale and reduce raw material and production costs [2] - China Liansu has established over 30 production bases across 20 provinces in China and overseas, positioning itself as a leading player in the PVC market [2] Industry - The improvement in real estate expectations, combined with rising upstream raw material prices, has led Zhongtai Securities to be optimistic about the profitability recovery of companies with pricing power, indicating an upward turning point in both industry prosperity and valuation [1] - The real estate sector is expected to stabilize and recover, driving a rebound in building material demand, while the continuous rise in prices of upstream raw materials such as asphalt, polypropylene, and polyethylene is expected to transmit cost pressures to building materials [1] - The plastic pipe market is relatively fragmented, with different business models and products among companies. As of the end of 2024, the market concentration ratio (CR20) for plastics is approximately 40%, with leading companies including China Liansu (15%), Gongyuan Co. (3%), and Weixing New Materials (approximately 2% total output, with PPR products around 8%) [2]

Group 1 - China Liansu (02128) saw an intraday increase of nearly 7%, with a year-to-date cumulative increase exceeding 50% [1] - As of the report, the stock rose by 3.91% to HKD 6.91, with a trading volume of HKD 113 million [1] - CICC's research report indicates that the consumer building materials industry is expected to experience a mild price recovery, with potential marginal improvements in the gross margins of leading companies [1] Group 2 - Recent price increase notices have been issued by leading companies in various segments, including waterproofing, gypsum boards, and municipal pipelines [1] - The basis for price increases includes supply optimization and rising prices of upstream raw materials, primarily chemical products such as PVC and emulsions [1] - CICC is optimistic about the trend of price recovery in the industry, suggesting that leading companies like China Liansu may see marginal profit recovery [1] Group 3 - Citigroup previously indicated that prior to the earnings blackout period for China Liansu, discussions with the company's CFO and Deputy CFO revealed signs of stabilization in the core mainland business [1] - The drag from residential business has decreased, offset by strong growth in non-residential sectors such as agriculture, industry, healthcare, and municipal services [1] - Citigroup raised the target price for China Liansu from HKD 6.5 to HKD 7 based on a projected price-to-earnings ratio of 9 times for this year, maintaining a "Buy" rating [1]

Core Viewpoint - China Lesso (02128) has seen a significant stock price increase, with a year-to-date rise exceeding 50% and a current price of 6.91 HKD, reflecting a 3.91% increase at the time of reporting [1] Industry Summary - The consumer building materials sector is expected to experience a mild price recovery, with leading companies likely to see marginal improvements in profit margins [1] - Recent price increase notices have been issued by leading companies in various segments, including waterproofing, gypsum boards, and municipal pipelines, indicating a positive trend in pricing [1] - The basis for these price increases includes supply optimization and rising prices of upstream raw materials, primarily chemical products such as PVC and emulsions [1] Company Summary - Citigroup has indicated that prior to the earnings blackout period for China Lesso, discussions with the company's CFO and Deputy CFO revealed signs of stabilization in core mainland operations [1] - The drag from residential business has decreased, offset by strong growth in non-residential sectors such as agriculture, industry, healthcare, and municipal services [1] - Based on a projected price-to-earnings ratio of 9 times for this year, Citigroup has raised the target price for China Lesso from 6.5 HKD to 7 HKD, maintaining a "Buy" rating [1]

Summary of Conference Call Records Industry Overview - The focus is on the **building materials and new materials** industry, particularly in relation to AI computing and electronic materials, with a notable emphasis on special electronic fabrics and PCB substrates [1][2]. Key Insights and Arguments 1. **AI-Driven Growth**: - The main growth drivers in the building materials sector are AI computing-related electronic materials, with special electronic fabrics leading the fiberglass segment. In the new materials sector, PCB substrates and semiconductor packaging materials are at the forefront [1]. 2. **Supply-Demand Dynamics**: - The electronic fabric market is experiencing a supply-demand imbalance, with an overall industry supply gap of approximately **20%**. Since January 2026, all categories of electronic fabrics have faced supply tightness, with companies holding orders for about **2 months** [1]. - The production capacity for standard electronic fabrics is shifting towards high-end products, resulting in a **60%** loss in capacity. This ongoing contraction in supply is expected to persist [1]. 3. **Price Increases**: - The electronic fabric industry has seen a price increase of **10%** in 2026, following **4-5** price hikes in 2025. High-end products like DK fabric, Q fabric, and CTE fabric are still in an upward price trend [1]. 4. **Production Bottlenecks**: - High-end product production relies on Toyota's advanced weaving machines, which have a delivery cycle of **1-2 years**. However, breakthroughs in pool kiln methods could lead to increased supply by 2029, potentially resulting in oversupply [1]. 5. **Inventory Levels**: - Inventory levels for CCL and electronic fabric factories are at historical lows, approximately **one week**, with PCB manufacturers extending their stocking period from the usual **1 month** to over **2 months** [1]. 6. **Profitability**: - High-end specialty electronic fabrics can achieve gross margins of **40%-50%**, with potential increases beyond **50%** as yield rates improve [1]. Recommendations 1. **Key Companies to Watch**: - Recommended companies include **Macro Technology**, **International Composites**, **China Jushi**, and **China National Materials**. Other notable mentions are **Philips**, **Gobi Technology**, and PCB-related firms like **China Tungsten High-Tech**, **Lianrui New Materials**, and **Dongcai Technology** [2]. 2. **Consumer Building Materials**: - The industry is nearing a bottoming phase, with significant price wars easing. Leading companies are shifting focus from price competition to quality and profitability recovery, with expectations for stabilization in 2026 and performance elasticity in 2027 [2]. 3. **Segment Differentiation**: - The waterproof segment shows signs of ending price wars, while the renovation of existing properties is becoming a core growth driver. Leading firms are enhancing their C-end and overseas strategies [2]. 4. **Strategic Focus**: - Major companies are prioritizing profitability recovery, channel optimization, and product diversification, while also accelerating overseas expansion to create a second growth curve [2]. 5. **Recommended Stocks**: - Elastic stocks include **Keshun Co.**, **Oriental Yuhong**, and **Hankao Group**. Stable stocks to consider are **Rabbit Baby**, **Sankeshu**, **Dongpeng Holdings**, **Monalisa**, and **China Liansu** [2]. Additional Insights - Traditional cyclical products are highlighted, with a focus on local state-owned enterprises like **Sichuan Road and Bridge**, **Shandong Road and Bridge**, and **China Railway**. The steel structure sector is represented by companies like **Honglu Steel Structure** and **Jinggong Steel Structure** [3]. - The cement sector is advised to focus on regional leaders such as **Western Cement**, **Huaxin Cement**, and **Shangfeng Cement** [3]. - Other new materials and robotics sectors are also mentioned, with companies like **Pana Micro透**, **TianYue Advanced**, and **Jing Sheng Co.** being noted [3].

Group 1 - China Lesso (2128.HK) saw its stock price rise by 6.16% to HKD 6.55, reaching a nearly three-year high since March 28, 2023, with a year-to-date increase of over 41%, significantly outperforming the Hang Seng Index, which rose over 5% in the same period [1] - The stock price has increased by 108% compared to the same period last year, when it closed at HKD 3.15 on February 7, 2022 [1] - CICC's report indicates a potential mild recovery in the consumer building materials sector, with leading companies in certain segments expected to see marginal improvements in profit margins due to price increases in waterproofing, gypsum boards, and municipal pipelines [1] Group 2 - Huatai Securities noted that positive real estate policies are likely to accelerate the stabilization of the real estate market, with current data reflecting in the stock prices and valuations of building materials companies [1] - Companies are improving their domestic market share, expanding overseas, and diversifying product categories, with some beginning to show signs of revenue improvement [1] - Citigroup reported that the core business of China Lesso is stabilizing, with reduced drag from residential business offset by strong growth in non-residential sectors such as agriculture, industry, healthcare, and municipal services [2] Group 3 - Citigroup raised its target price for China Lesso from HKD 6.5 to HKD 7, based on a forecasted price-to-earnings ratio of 9 times for this year, which is 0.5 standard deviations above the historical average, maintaining a "Buy" rating [2]

Group 1 - China Liansu (2128.HK) saw its stock price rise by 6.16% to HKD 6.55, reaching a nearly three-year high since March 28, 2023, with a year-to-date increase of over 41%, significantly outperforming the Hang Seng Index, which rose over 5% during the same period [1] - The stock price has increased by 108% compared to the closing price of HKD 3.15 on February 7, 2022 [1] - CICC's report indicates a potential mild recovery in the consumer building materials sector, with leading companies in certain segments expected to see marginal improvements in profit margins due to price increases in waterproofing, gypsum boards, and municipal pipelines [1] Group 2 - Huatai Securities noted that positive real estate policies are likely to accelerate the stabilization of the real estate market, with current data reflecting in the stock prices and valuations of building materials companies [1] - Companies are improving revenue through increased domestic market share, overseas business expansion, and product category diversification, with some showing signs of revenue improvement [1] - Citigroup reported that China Liansu's core business in mainland China is stabilizing, with reduced drag from residential business offset by strong growth in non-residential sectors such as agriculture, industrial, medical, and municipal [2]

Core Insights - The Chinese duct industry is transitioning from traditional construction accessories to high-tech, high-value key system components, characterized by expanding market size, highly differentiated competition, and technology-driven transformation [1][8] Industry Overview - Ducts, short for "ventilation ducts," are closed channel systems used in buildings or industrial systems to transport, distribute, and control air (or gas) flow [2] - The primary functions of ducts include achieving directed airflow for ventilation, temperature regulation, smoke and dust removal, material transport, or maintaining specific cleanliness standards [2] Market Size - The market size of the Chinese duct industry is projected to reach approximately 3.342 billion yuan in 2024, representing a year-on-year growth of 4.44% [1][8] - The demand for efficient ventilation systems is driven by policies promoting building energy retrofitting and carbon neutrality goals, with a surge in demand for ducts meeting specific cleanliness, corrosion resistance, and high airtightness requirements in high-end manufacturing sectors such as data centers and biomedicine [1][8] Industry Chain - The upstream of the duct industry includes raw materials such as galvanized steel plates, stainless steel plates, aluminum plates, and various insulation materials [4] - The midstream involves the production and manufacturing of ducts, while the downstream applications span commercial and public buildings, industrial facilities, data centers, cleanrooms, and residential buildings [4] Key Enterprises - The competitive landscape of the duct industry is characterized by a "large industry, small enterprises" model, with significant differentiation along technological and application lines [9] - China Liansu Group is a major player in the duct market, leveraging its large-scale production and nationwide sales network to extend its product lines into various duct materials [9] - Duken New Materials is recognized as a national-level specialized and innovative "little giant," focusing on flexible composite ducts and innovative solutions [10] Trends and Innovations - The future of ducts will evolve from "standardized transport carriers" to "multi-functional integrated components," driven by breakthroughs in material technology [11] - The industry will increasingly adopt environmentally friendly, high-performance composite materials and functional surface treatments to meet stringent hygiene standards in healthcare and laboratory settings [11] - Digital transformation will fundamentally change duct production and operation, with automation and digital twin technologies enhancing efficiency and monitoring capabilities [12] - The demand for highly specialized and customized duct solutions will rise, necessitating duct manufacturers to transition into deep scene solution providers [13]