Investment Rating - Industry Rating: Outperform the market (maintained rating) [6] Core Viewpoints - The construction sector has outperformed the market recently, with a 2.23% increase compared to the 2.09% rise in the CSI 300 index, indicating a positive trend in the industry [1] - Significant price increases in cellulose-related products have been observed, highlighting the potential for domestic substitution to drive performance and valuation catalysts, with a strong recommendation for Sanwei Chemical [1][24] - The issuance of special bonds remains high, suggesting a focus on the conversion rhythm of physical construction work in the future [4] Summary by Sections 1. Progress of Domestic Substitution for Cellulose Products - Acetic cellulose (CA) is primarily used in tobacco filters, with China consuming approximately 300,000 tons annually, and Sichuan Pushi, holding a 67% stake by Yibin Paper, has a leading position in the production of diacetate and triacetate [2] - The prices of CAB (cellulose acetate butyrate) and CAP (cellulose acetate propionate) have significantly increased, with imported CAB prices ranging from 188,000 to 200,000 yuan/ton, while domestic prices are between 90,000 and 115,000 yuan/ton, a notable rise from 58,000 yuan/ton in March 2025 [2][24] - Domestic production capabilities for CAB and CAP have been historically monopolized by foreign companies, but local firms like Wuxi Chemical Research Institute and Fujian Hongyan Chemical are developing their production capabilities [3] 2. High-Level Special Bond Issuance and Focus on Infrastructure Work - In April 2025, new local special bonds totaled 230.144 billion yuan, with a cumulative issuance of 1.1904 trillion yuan from January to April, marking a year-on-year increase of 467.9 billion yuan [4][29] - The cement shipment rate was reported at 48.07%, with a slight decrease, while the asphalt plant operating rate was 28.8%, indicating a gradual recovery in construction activity [4][29] 3. Market Review - The construction index rose by 2.23% during the week of May 5-9, outperforming the CSI 300 index, with notable gains in construction decoration and design sectors [5][36] - Key stocks that performed well included Shanshui Bide (+28.1%), ST Saiwei (+21.7%), and ST Chuangxing (+21.5%) [5][36] 4. Investment Recommendations - The report suggests focusing on traditional construction blue-chip stocks, particularly in infrastructure sectors like water conservancy, railways, and aviation, with a recommendation for companies like Sichuan Road and Bridge, Zhejiang Jiaoke, and Anhui Construction [41] - It also highlights opportunities in cyclical engineering stocks, particularly in coal chemical projects, recommending companies like Sanwei Chemical and China Chemical for their strong technical capabilities [42]