环保行业跟踪周报：《生态环境保护督察工作条例》印发，固废板块提分红验证+供热IDC拓展提ROE

Investment Rating - The report maintains an "Increase" rating for the environmental protection industry [1] Core Views - The issuance of the "Ecological Environment Protection Supervision Work Regulations" by the Central Committee of the Communist Party of China and the State Council aims to comprehensively promote the construction of a beautiful China [8] - The solid waste sector is expected to see improved cash flow and increased dividends due to reduced capital expenditures and enhanced operational efficiency [9][12] - The water service sector is experiencing stable growth and high dividends, with water price reforms expected to reshape growth and valuation [12][14] Summary by Sections Solid Waste Management - Capital expenditures are decreasing, leading to significant improvements in free cash flow and increased dividends [9] - Key companies such as Junxin Co. are projected to distribute cash dividends of 507 million yuan in 2024, a 37% increase year-on-year, with a dividend yield of 4.4% [9] - The industry is entering a mature phase, with operational efficiency being enhanced through cost reduction and collaborations in heating and IDC [9][10] Water Services - The water service sector's revenue is projected at 65.5 billion yuan in 2024, with a net profit of 11.2 billion yuan, reflecting a 27% increase [12] - Water price reforms in cities like Guangzhou and Shenzhen are expected to drive a new round of price adjustments, enhancing profitability and stability [13][14] - Companies such as Yuehai Investment are highlighted for their ability to frequently adjust prices, with an expected dividend yield of 6.9% in 2025 [14] Environmental Equipment - The penetration rate of new energy sanitation vehicles increased by 6.14 percentage points to 14.55% in the first four months of 2025, with sales of new energy sanitation vehicles rising by 73% [29] - The total sales of sanitation vehicles reached 24,542 units, with a slight year-on-year decrease of 0.2% [29] Biofuels - The prices of biodiesel and waste cooking oil have decreased, leading to negative profit margins [37][38] - The average price of biodiesel was 7,700 yuan per ton, down 5.5% week-on-week, while waste cooking oil averaged 6,018 yuan per ton, down 1.2% [37] Lithium Battery Recycling - The profitability of lithium battery recycling has slightly declined due to fluctuating metal prices and a decrease in discount coefficients [41][42] - The average unit gross profit for waste material is estimated at -0.71 million yuan per ton [41]