证券代码：600168 证券简称：武汉控股 公告编号：临 2025—036 号 武汉三镇实业控股股份有限公司 关于会计估计变更的公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈 述或者重大遗漏，并对其内容的真实性、准确性和完整性承担个别及连带责任。 重要内容提示： ? 本次会计估计变更后，预计公司 2025 年度固定资产折旧费用 减少 资产增加 1,829.21 万元(以上数据未经审计,最终影响数据以 2025 年度 审计报告为准)。 ? 本次会计估计变更于 2025 年 4 月 1 日起执行。 ? 本议案已经过董事会审议通过，无需提交公司股东大会审议。 一、本次会计估计变更情况 武汉三镇实业控股股份有限公司（以下简称"公司"）于 2025 年 6 月 13 日 召开了第九届董事会第四十二次会议，会议审议通过了《关于会计估计变更的议 案》。现将本次会计估计变更情况公告如下： （一）会计估计变更的内容 根据《企业会计准则第 4 号——固定资产》有关规定，企业至少应当于每年 年度终了，对固定资产的使用寿命、预计净残值和折旧方法进行复核。如果固定 资产的预计使用寿命、净残值与原先会计估计数有差 ...

Core Viewpoint - The company, Lingnan Ecological Culture and Tourism Co., Ltd., is facing significant financial difficulties, including the inability to repay its convertible bonds on time, which may lead to further legal and operational challenges [2][4][6]. Financial Performance - In 2024, the company's operating revenue was 861.84 million yuan, a decline of 59.55% compared to 2023 [3]. - The net profit attributable to shareholders for 2024 was -984.33 million yuan, indicating a reduction in the scale of losses compared to 2023 [3]. - For the first quarter of 2025, the net profit attributable to shareholders was -66.40 million yuan, a decrease in losses by 26.36% compared to the same period in 2024 [3]. Debt and Credit Risks - The company has announced that it cannot repay the principal and interest of the "Lingnan Convertible Bonds" on time, leading to a downgrade of its credit rating to C [2]. - The overdue status of the bonds may undermine creditor confidence, further straining the company's financing capabilities and exacerbating its liquidity issues [2][4]. Legal and Operational Challenges - As of December 31, 2024, the company had 251 pending lawsuits with a total amount in dispute of 2.95 billion yuan, which represents 12.75% of the company's latest audited net assets [6][7]. - The company is experiencing delays in project bidding and construction, which have negatively impacted cash flow and operational performance [2][4]. Asset Pledge and Collateral Risks - The company has pledged its equity in Lingnan Water Group Co., Ltd. as collateral for the convertible bonds, but the realizable value of these assets is uncertain due to the nature of the receivables and the need for cooperation from various parties [5][6]. - There is a risk that if the company is declared bankrupt within a year of the collateral establishment, the pledge may be revoked [5]. Stock Market Risks - The company's stock is at risk of being delisted if its share price remains below 1 yuan for 20 consecutive trading days, as per the Shenzhen Stock Exchange regulations [6].

1. Report Industry Investment Rating - Not provided in the content 2. Core Viewpoints of the Report - In the context of a volatile bond market and a passive widening of credit spreads, investors should prioritize high - coupon assets for certain returns and prepare in advance for the spread compression market driven by the seasonal inflow of wealth management funds in July [1][5]. - The current core contradiction in the credit bond market is the co - existence of weakening allocation demand and a passive widening of spreads in a volatile environment. Investors should seize pricing deviation opportunities under the protection of coupon safety cushions [5]. - The volatile market pattern caused by the interplay of multiple factors will continue, providing tactical opportunities for layout during market adjustments [6]. - The coupon strategy is the optimal solution in a volatile market, and portfolios should be constructed in a stratified manner according to the characteristics of liabilities [7]. - Investors should "pre - position" for the seasonal spread compression market in July and seize structural opportunities in specific bond varieties [8]. 3. Summary by Relevant Catalog 3.1 Yield and Spread Overview 3.1.1 Yields and Changes of Each Tenor - Yields of various types of bonds at different tenors are presented, along with their weekly changes and historical percentiles. For example, the 0.5 - year Treasury yield is 1.41%, down 4.0bp from last week, with a historical percentile of 8.4% [14]. 3.1.2 Spreads and Changes of Each Tenor - Credit spreads of various types of bonds at different tenors are shown, including their weekly changes and historical percentiles. For instance, the 0.5 - year credit spread of public non - perpetual urban investment bonds is 25bp, up 2.1bp from last week, with a historical percentile of 12.7% [16]. 3.2 Yields and Spreads of Credit Bonds by Category (Hermite Algorithm) 3.2.1 Yields and Spreads of Urban Investment Bonds by Region - **Yields and Changes of Each Tenor**: Yields of public non - perpetual urban investment bonds in different provinces at key tenors, their weekly changes, and historical percentiles are provided. For example, the 0.5 - year yield of Anhui's public non - perpetual urban investment bonds is 1.77%, up 2.6bp from last week, with a historical percentile of 1.1% [19]. - **Spreads and Changes of Each Tenor**: Credit spreads of public non - perpetual urban investment bonds in different provinces at key tenors, their weekly changes, and historical percentiles are given. For example, the 0.5 - year credit spread of Anhui's public non - perpetual urban investment bonds is 30.41bp, up 4.6bp from last week, with a historical percentile of 7.2% [22]. - **Yields and Changes of Each Implied Rating**: Yields of public non - perpetual urban investment bonds in different provinces for each implied rating, their weekly changes, and historical percentiles are presented. For example, the AAA - rated yield of Anhui's public non - perpetual urban investment bonds is 1.80%, up 3.8bp from last week, with a historical percentile of 5.1% [26]. - **Spreads and Changes of Each Implied Rating**: Credit spreads of public non - perpetual urban investment bonds in different provinces for each implied rating, their weekly changes, and historical percentiles are shown. For example, the AAA - rated credit spread of Anhui's public non - perpetual urban investment bonds is 28.96bp, up 4.8bp from last week, with a historical percentile of 32.2% [31]. - **Yields and Changes of Each Administrative Level**: Yields of public non - perpetual urban investment bonds in different provinces at each administrative level, their weekly changes, and historical percentiles are provided. For example, the provincial - level yield of Anhui's public non - perpetual urban investment bonds is 1.80%, up 3.5bp from last week, with a historical percentile of 3.7% [35].

Group 1 - Libet has received approval from the China Securities Regulatory Commission for the issuance of convertible bonds, valid for 12 months [1] - Dinglong plans to acquire an additional 8% stake in its subsidiary, increasing its ownership from 91.35% to 99.35% for a total price of 240 million yuan [1] - Longyuan Donggu has been designated as a supplier for a major automotive project, with an expected total sales amount of 450 to 500 million yuan over five years [14] Group 2 - Luoniushan reported a sales revenue of 100 million yuan in May, a year-on-year decrease of 11.45% [2] - Baoming Technology has secured a loan commitment of up to 7 million yuan for stock repurchase [2] - Xinhua Pharmaceutical has received approval for the listing of a new chemical raw material used in treating chronic heart failure and hypertension [3] Group 3 - China Minmetals announced a new contract amount of 396 billion yuan for the first five months of the year, a decrease of 22.2% year-on-year [7] - Zhongbei Communication's application for a specific stock issuance has been accepted by the Shanghai Stock Exchange [8] - Rongfa Nuclear Power plans to issue bonds not exceeding 1 billion yuan to repay debts and supplement working capital [9] Group 4 - Phoenix Optical plans to invest 8.5 million USD to establish a wholly-owned subsidiary in Vietnam for manufacturing optical products [11] - Xiamen Airport reported a passenger throughput of 2.4752 million in May, a year-on-year increase of 8.34% [12] - Weilan Biological has received a new veterinary drug registration certificate for a product aimed at treating canine allergies and inflammation [13] Group 5 - Shouxiangu has completed the registration of a health food product that claims to enhance immunity [13] - Xingye Yinxin's subsidiary has passed a resource reserve verification report, confirming significant mineral reserves [16] - Shaanxi Construction has won two major projects with a total contract value exceeding 2.8 billion yuan [18] Group 6 - Huari received a cash dividend of 50 million yuan from its subsidiary [20] - Zhongchu's deputy general manager has resigned due to governance arrangements [21] - Kexin Pharmaceutical's core product has received breakthrough therapy designation from the National Medical Products Administration [39]

Group 1: Accounts Receivable and Project Development - The company has seen an increase in accounts receivable due to expanded business scale and is actively managing collections [2] - The Chengdu Wanxing Environmental Power Plant (Phase III) is under construction, with a waste processing capacity of 5,100 tons/day, sludge treatment of 800 tons/day, and kitchen waste processing of 800 tons/day, expected to be operational by 2026 [2][3] Group 2: Market Expansion and Pricing Mechanisms - The company aims to be a national comprehensive water and environmental service provider, focusing on expanding its market presence in Chengdu and surrounding areas while exploring niche markets nationwide [3] - The water pricing adjustment mechanism is based on national policies and agreements, requiring government approval after cost audits and hearings [3] - The temporary adjustment of sewage treatment prices can occur due to significant cost changes, with the average sewage treatment service fee in Chengdu's central urban area set at 2.63 CNY/ton for 2024-2026 [3][4] Group 3: Capital Expenditure and Shareholder Returns - Recent capital expenditures have been significant due to multiple water supply and waste projects, but these are expected to decrease as projects become operational within the next 1-2 years [4] - The company is committed to increasing cash dividends for shareholders, with plans to enhance returns once major projects are completed and operational [4]

Group 1: Company Overview - The company is a leading comprehensive water and environmental service provider in China, with a complete industry chain including investment, research and development, design, construction, and operation [2]. - Current operational and construction capacities include: - Water supply projects: approximately 4.3 million tons/day - Wastewater treatment projects: over 4.8 million tons/day - Reclaimed water utilization projects: approximately 1.3 million tons/day - Waste incineration power generation: 12,000 tons/day - Leachate treatment: 8,430 tons/day - Sludge disposal: 3,116 tons/day - Kitchen waste disposal: 1,950 tons/day [3]. Group 2: Pricing Mechanisms - Water pricing adjustments are submitted to government price authorities based on national policies and agreements, requiring cost audits and public hearings [5]. - Wastewater treatment service fees are adjusted every 2 to 3 years, with a current tentative average price of 2.63 RMB/ton for the 2024-2026 period in Chengdu [6]. Group 3: Project Developments - The Chengdu Wanxing Environmental Power Plant (Phase III) is under construction, with a waste processing capacity of 5,100 tons/day, sludge processing of 800 tons/day, and kitchen waste processing of 800 tons/day, expected to be operational by 2026 [7]. Group 4: Accounts Receivable Management - As of the end of 2024, accounts receivable amounted to approximately 4 billion RMB, with improvements in collection in some regions [8]. - The company emphasizes accounts receivable management and actively engages in collection efforts, integrating this into performance assessments. Group 5: Market Expansion Strategy - The company focuses on national expansion in the water and environmental service sector, particularly in the Chengdu market, while exploring resource integration and niche markets nationwide [8]. Group 6: Capital Expenditure and Dividends - Significant capital expenditures are expected due to multiple ongoing water supply and waste projects, with a gradual decrease anticipated as projects become operational in the next 1-2 years [8]. - The company is committed to increasing cash dividend ratios as major projects are completed and capacity is released [8].

Group 1: Company Overview and SAF Production - The company completed the technical transformation for SAF in 2024, achieving a product yield of 82% and meeting 46 international standards [2] - In December 2024, the company signed a contract with China National Petroleum International to export 4,950 tons of bio-jet fuel to international markets [2] - The company continues to optimize the SAF production process, aiming to improve yield in the future [2] Group 2: Domestic SAF Policy Landscape - China officially launched SAF application pilot work in September 2024, marking a significant milestone in the aviation industry's green transition [3] - The first phase of the pilot (September to December 2024) involved 12 flights across four airports, validating SAF's applicability and operational safety [3] - The second phase starting in 2025 will expand the network of participating airlines and airports for SAF promotion [3] Group 3: International SAF Policy Landscape - The EU has set a target for carbon neutrality by 2050 and introduced the European Green Deal, which includes policies to support SAF development [4] - The ReFuelEU plan mandates that by 2025, at least 2% of aviation fuel must be SAF, increasing to 70% by 2050 [4] - The EU Emissions Trading System is undergoing reforms to enhance carbon reduction efforts, impacting the SAF industry [4] Group 4: Comparative Analysis of SAF Development - SAF is still in its early stages globally, with major economies like the EU, the US, and China issuing supportive policies [6] - China's SAF policies are primarily encouragement-based, lacking specific blending ratio requirements for fuel suppliers or airlines [6] - The Chinese government has indicated strong support for SAF as a key component of the aviation industry's decarbonization strategy [6] Group 5: Company Advantages and Market Position - The company operates a light asset model, utilizing site leasing and equipment refurbishment for SAF production, resulting in lower capital and operational costs [8] - The company's SAF products have been certified by ISSC-EU and ISCCCORSIA, confirming quality and market competitiveness [8] - The company has secured several new water treatment projects, indicating a robust business expansion strategy [8]

Core Viewpoint - The company Shenzhen Huakong Saige Co., Ltd. has undergone significant leadership changes, with the election of a new chairman and the appointment of a new vice general manager, amidst ongoing efforts to strengthen control and improve operational performance [1][2][4][5]. Leadership Changes - The company held a board meeting on June 6, 2023, where it elected Mr. Lang Yongqiang as chairman and appointed Mr. Wu Yanjing as vice general manager, effective immediately [1][2]. - Mr. Lang Yongqiang, born in February 1984, has held various managerial positions within the Shanxi Construction Investment Group and currently serves in multiple roles, including chairman of the board at Huakong Saige [4]. - Mr. Wu Yanjing, born in May 1981, has experience in the Shanxi Construction Investment Group and is currently the vice general manager of Huakong Saige [4]. Company Background - Huakong Saige was listed in 1997 and has undergone ownership changes, with Shanxi Construction Investment Group acquiring control through its subsidiary Huayong Tai [5][6]. - The company has been involved in restructuring efforts, including the replacement of non-independent directors and the sale of non-core assets to address historical litigation issues [5]. Financial Performance - The company reported a revenue of 1.01 billion yuan in 2024, a 9.6% increase year-on-year, but faced a significant decline in net profit, which dropped by 98% to 13.11 million yuan [6]. - In Q1 2025, the company experienced a 20.98% decline in revenue to 136 million yuan, with a net loss of 17.36 million yuan, although this represented a 24.98% improvement compared to the previous year [6]. Strategic Initiatives - The company plans to acquire a 40% stake in Shanxi Construction Investment Group's subsidiary, Yunshuzhi, for 21.68 million yuan, which will enhance its control over the subsidiary and support its transition towards digitalization and environmental sustainability [8]. - A planned private placement aims to raise up to 846 million yuan to repay debts, which will increase Huayong Tai's shareholding from 26.48% to 43.44%, thereby strengthening control over Huakong Saige [6].

上 市 公 司 2025 年 06 月 09 日 光大环境 (00257) ——垃圾焚烧龙头迎现金流拐点，分红提升可期 报告原因：首次覆盖 买入（首次评级） | 市场数据： | 2025 年 06 月 06 日 | | --- | --- | | 收盘价（港币） | 3.81 | | 恒生中国企业指数 | 8629.75 | | 52 周最高/最低（港币） | 4.14/3.20 | | H 股市值（亿港币） | 234.05 | | 流通 H 股（百万股） | 6,142.98 | | 汇率（人民币/港币） | 1.0920 | 一年内股价与基准指数对比走势： 资料来源：Bloomberg -11% 9% 29% 49% 06/06 07/06 08/06 09/06 10/06 11/06 12/06 01/06 02/06 03/06 04/06 05/06 06/06 证券分析师 王璐 A0230516080007 wanglu@swsresearch.com 莫龙庭 A0230523080005 molt@swsresearch.com 研究支持 莫龙庭 A0230523080005 molt@sw ...

证券研究报告 | 2025年06月09日 公用环保 202506 第 2 期 优于大市 国家能源局组织开展新型电力系统建设第一批试点工作，2025 年 4 月工业级混 合油（UCO）出口量价双升 市场回顾：本周沪深 300 指数上涨 0.88%，公用事业指数下跌 0.13%，环 保指数上涨 0.46%，周相对收益率分别为-1.01%和-0.42%。电力板块子 板块中，火电下跌 0.97%；水电下跌 1.47%，新能源发电下跌 0.45%；水 务板块上涨 0.16%；燃气板块上涨 1.18%；检测服务板块上涨 0.98%。 重要事件：国家能源局组织开展新型电力系统建设第一批试点工作。要求聚 焦新型电力系统有关前沿方向，依托典型项目开展单一方向试点，依托 典型城市开展多方向综合试点，探索新型电力系统建设新技术、新模式， 推动新型电力系统建设取得突破。坚持重点突破；坚持因地制宜；坚持 创新引领，鼓励采用新技术、新模式；坚持全程管理，做好试点项目的 申报优选、组织实施、效果评估、推广应用等全过程管理。提出了关于 构网型技术、系统友好型新能源电站、智能微电网、算力与电力协同、 虚拟电厂、大规模高比例新能源外送、新一代煤 ...