证券代码：002311 证券简称：海大集团 公告编号：2026-009 广东海大集团股份有限公司 关于以集中竞价交易方式回购公司股份的进展公告 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假 记载、误导性陈述或重大遗漏。 广东海大集团股份有限公司（以下简称"公司"）分别于2025年10月28日、 2025年11月14日召开了第七届董事会第四次会议、2025年第四次临时股东会，审 议通过了《关于以集中竞价方式回购公司股份方案的议案》，同意公司以集中竞 价交易方式回购公司部分已在境内发行的A股股票，用于依法注销减少注册资本 及实施股权激励计划及/或员工持股计划。具体内容详见公司在指定信息披露媒 体《证券时报》《中国证券报》《上海证券报》《证券日报》和巨潮资讯网披露 的《关于以集中竞价方式回购公司股份方案的公告》《关于以集中竞价方式回购 公司股份方案的报告书》，公告编号：2025-055、2025-061。 根据《上市公司股份回购规则》《深圳证券交易所上市公司自律监管指引第 9号——回购股份》等相关规定，公司应在回购期间每个月的前三个交易日内披 露截至上月末的回购进展情况，现将公司回购股份进展情 ...

Investment Rating - The industry is rated as "Maintain Overweight" [4] Core Views - The pig farming sector is experiencing significant losses, with prices dropping to 9.46 CNY/kg, indicating a high certainty of continued deep losses in the industry. The expected duration and extent of these losses are surpassing initial forecasts. The focus remains on the reduction of loss-making capacity, with a high likelihood of industry losses in the upcoming quarter. Investors are advised to strengthen their allocations and pay attention to opportunities in bulk agricultural products and edible fungi [12][13] - In the livestock sector, the price of lean meat pigs has fallen below 10 CNY/kg, deepening losses. The market has seen a significant pullback after a brief rebound, with low participation levels. It is anticipated that participants facing high costs will reduce their output over a longer period. Investors are encouraged to consider opportunities during this loss phase, particularly in low-cost pig farming companies such as DeKang Agriculture, Wen's Foodstuffs, Muyuan Foods, and others [12][13] - The bulk agricultural products sector is influenced by high oil prices, which are expected to increase production costs and expand demand. The most affected products include vegetable oils and rubber, followed by sugar and corn. Current pricing for major bulk agricultural products has seen some increases, but the market has not fully reflected these changes yet [13] - The mushroom sector, particularly enoki mushrooms, is experiencing unexpected price stability, with key companies reporting high growth. The upcoming release of winter worm summer grass as a new product is anticipated to enhance annual investment value [13] - In the poultry sector, there are seasonal price elasticity opportunities for yellow feathered chickens, while the trend for parent stock in white feathered chickens is noteworthy. Companies such as Shennong Development and Yisheng Livestock are highlighted for potential investment [13] Summary by Sections Pig Farming - The average price of lean meat pigs is 9.46 CNY/kg, down 12.2% from last month. The average wholesale price of pork is 15.73 CNY/kg, down 11.1% [15][22] - Self-breeding and self-raising profitability has decreased, with average losses of 344.24 CNY per head for self-bred pigs and 189.87 CNY per head for purchased piglets. The gross profit from selling piglets has decreased by 62.18 CNY per head [19][20] Bulk Agricultural Products - Domestic corn prices have risen to 2452.75 CNY/ton, an increase of 3.0% from last month. Wheat prices have also increased to 2588.11 CNY/ton, up 2.1% [38][40] - The price of domestic soybeans has risen to 4277.37 CNY/ton, up 5.0% from last month [52] Mushroom Sector - The enoki mushroom prices remain unexpectedly stable, with key companies like Zhongxing Mushroom Industry and Xue Rong Biological reporting high growth [13] Poultry Sector - The average price of white feathered chickens is 7.11 CNY/kg, down 4.8% from last month. The average price of chicken products is 9 CNY/kg, down 2.7% [25][26] - Profitability for parent stock chickens has increased slightly, while slaughter profits have also seen a rise [28]

Market Strategy - The market is expected to experience a "slow bull" phase in April after a "first suppress then rise" trend in March, providing a valuable window for long-term investment opportunities [2][6] - The external geopolitical risks, particularly in the Middle East, are anticipated to continue affecting market sentiment, but the internal stability of the market remains intact [6] Style Strategy - The investment style is characterized by a focus on energy security and advanced manufacturing, with the renewable energy sector (solar, wind, and power transmission) being a core theme due to China's competitive advantages [3] - The agricultural sector is highlighted as a potential area for investment due to recent price corrections, presenting opportunities for a second left-side layout [3] Industry Strategy - In the agricultural sector, pig prices have dropped to a historical low of 9.4 yuan/kg, leading to accelerated capacity reduction and production adjustments, which are expected to result in a price rebound before May [7] - The report emphasizes the potential for growth in the livestock breeding sector and related animal health industries [7] Thematic Strategy - The report reaffirms that energy security concerns will accelerate the international expansion of China's new energy vehicles (NEVs), with significant increases in orders from countries like Australia, the Philippines, and Thailand [4][7] - Domestic companies such as BYD and SAIC are noted for their rising sales and market presence in the NEV sector [7]

Investment Rating - The report assigns an "Accumulate" rating for the agricultural sector [6] Core Insights - The report highlights a continued optimistic outlook for agricultural products due to ongoing international conflicts, which are expected to drive prices upward [3] - The domestic pet market is experiencing rapid growth, with companies like Zhongchong Co. and Guai Bao Pet at low valuation levels, presenting investment opportunities [4] - The livestock sector is facing challenges with high weights and low prices, particularly in the pig market, where prices are expected to remain depressed [5] Summary by Sections Planting Sector - The report maintains a positive outlook for agricultural prices, particularly for major crops like soybeans, corn, and wheat, with current prices at 4,277 CNY/ton for soybeans, 2,453 CNY/ton for corn, and 2,588 CNY/ton for wheat [3] - The ongoing conflict in the Middle East is expected to increase demand for vegetable oil raw materials due to rising energy prices [3] - Recommended companies include Kangnong Seed Industry, which leads in corn seed variety iteration, and Nopson, which is expected to benefit from blueberry sales growth [3] Livestock Sector - The average weight of pigs at market is currently 128.71 kg, with prices continuing to decline, leading to a negative outlook for the sector [5] - The report suggests that rising feed costs due to higher corn prices will further pressure the livestock industry [5] - Recommended stocks in this sector include Muyuan Foods, Wens Foodstuff Group, and New Hope Liuhe [5] Pet Sector - The domestic pet market is growing rapidly, with major pet exhibitions in cities like Beijing and Shenzhen showcasing the industry's vitality [4] - Companies with overseas production capacity and increasing orders are expected to perform well despite currency fluctuations [4] - Key investment opportunities highlighted include Guai Bao Pet and Zhongchong Co., both of which are at low valuation levels [4] Key Company Profit Forecasts and Valuations - The report provides earnings per share (EPS) and price-to-earnings (PE) ratios for several companies, with recommendations to accumulate shares in companies like Muyuan Foods (PE 9.40), Wens Foodstuff Group (PE 13.11), and Kangnong Seed Industry (PE 11.05) [36]

本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假 记载、误导性陈述或重大遗漏。 广东海大集团股份有限公司（以下简称"公司"）于近日接到公司控股股东 广州市海灏投资有限公司（以下简称"海灏投资"）函告，获悉海灏投资将其所 持有公司的部分股份办理了质押及解除质押手续，具体事项如下： 一、股东股份质押及解除质押的基本情况 | 股东 | 是否为控股股 东或第一大股 | 本次质押 | 占其所持 | 占公司总 | 是否 | 是否 为补 | 质押 | 质押 | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 名称 | 东及其一致行 | 数量 （股） | 股份比例 | 股本比例 | 为限 售股 | 充 | 起始日 | 到期日 | 质权人 | 质押用途 | | | 动人 | | | | | 质押 | | | | | | 海灏投资 | 是 | 4,500,000 | 0.49% | 0.27% | 否 | 2026 否 月 | 年 3 日 23 | 至解除质 押登记之 日止 | 华泰证券 股份有限 公司 | 自身 ...

Investment Rating - The industry investment rating is "Leading the Market - A" and the rating is maintained [7] Core Views - The report highlights that the price of agricultural products may continue to rise, coupled with policy guidance that is expected to lead to a reduction in pig production capacity [1][2] - In the pig farming sector, strict policy controls combined with farming losses are prompting attention to the progress of breeding sows' reduction [22][23] - The poultry farming sector shows a mixed trend for white feather broilers, with fluctuating prices for live chickens [31] - The planting sector is optimistic about the trend of rising agricultural product prices due to the transmission of energy prices [4] Summary by Sections 1. Industry Overview - The agricultural sector increased by 1.01% this week, ranking 17th among the primary industries [15] - The livestock, feed, veterinary, agricultural processing, fishery, and planting sectors all experienced slight declines [18] 2. Industry Data Tracking 2.1 Pig Farming - The average price of live pigs is 10.06 yuan/kg, down 1.18% week-on-week and 2.40% over two weeks; the price of piglets is 379 yuan/head, down 10.19% week-on-week [21][22] - The average daily slaughter volume of pigs is 173,000 heads, with a week-on-week change of 23.74% [22] 2.2 Poultry Farming - The average price of white feather broilers is 7.33 yuan/kg, up 1.66% week-on-week; the price of meat chicken chicks is 3.20 yuan/chick, up 9.59% week-on-week [31] 2.3 Planting Sector - The average price of corn is 2453.27 yuan/ton, up 0.54% week-on-week; the average price of domestic wheat is 2595.63 yuan/ton, up 1.34% week-on-week; the average price of domestic soybeans is 4277.37 yuan/ton, unchanged [43][45] 2.4 Aquaculture Sector - The average price of carp is 20.00 yuan/kg, unchanged; the average price of crucian carp is 30.00 yuan/kg, unchanged; the average price of bass is 44.00 yuan/kg, down 4.26% [47]

Investment Rating - The report maintains an investment rating of "Buy-A" for Haida Group and "Buy-B" for Shengnong Development, Wen's Shares, and others [8]. Core Insights - The report emphasizes the return to capacity reduction logic in the breeding sector, suggesting that the pig industry may face pressure in the first half of the year, but this period could also serve as a favorable window for capacity reduction [2][5]. - The report highlights the ongoing decline in pig prices, with significant losses in breeding profits, indicating a challenging environment for pig farmers [3][25]. - The feed industry is experiencing a shift from product competition to competition based on value across the supply chain, leading to market consolidation and a focus on leading companies with R&D and scale advantages [4]. Summary by Sections 1. Market Performance - For the week of March 16-22, the CSI 300 index decreased by 2.19%, while the agriculture sector fell by 4.50%, ranking 17th among sectors. Key sub-industries like pig farming, poultry farming, and animal health showed better performance [3][16]. 2. Industry Data 2.1 Pig Farming - As of March 20, the average prices for external three yuan pigs in Sichuan, Guangdong, and Henan were 9.85, 10.61, and 9.88 yuan/kg, respectively, reflecting declines of 3.90%, 3.19%, and 2.47% week-on-week. The average pork price was 15.98 yuan/kg, down 1.18% [3][25]. - Self-breeding profits were reported at -297.68 yuan/head, a decrease of approximately 14.53 yuan from the previous week, while profits from purchased piglets were -141.48 yuan/head, down about 23.30 yuan [25][41]. 2.2 Poultry Farming - The price of white feather chickens increased to 7.33 yuan/kg, up 1.66% week-on-week, with chicken profits rising significantly to 0.47 yuan/chicken, an increase of 327.27% [41]. 2.3 Feed Processing - The average price of fattening pig feed was 3.39 yuan/kg, up 0.30% week-on-week, while chicken feed prices remained stable at 3.55 yuan/kg [47]. 2.4 Aquaculture - As of March 20, the price of sea cucumbers was stable at 110 yuan/kg, while shrimp prices remained at 280 yuan/kg [52]. 2.5 Crop and Grain Processing - As of March 20, corn prices were 2454.61 yuan/ton, up 0.32% week-on-week, while soybean prices remained stable at 4277.37 yuan/ton [57].

- The report focuses on the investment value of the CSI All Index Agriculture, Forestry, Animal Husbandry, and Fishery Index (930910.CSI), which is a secondary industry index under the CSI All Index series, reflecting the overall performance of the agriculture sector in the A-share market[39][40][42] - The index adopts a fully replicated method to construct the investment portfolio, aiming to minimize tracking deviation and annualized tracking error, with a target of absolute daily tracking deviation not exceeding 0.2% and annualized tracking error not exceeding 2%[9][89] - The index's sample adjustment rules include semi-annual adjustments implemented on the next trading day after the second Friday of June and December each year, and temporary adjustments in special circumstances such as delisting or corporate restructuring[41][45] - The weighting and weight rules use adjusted market capitalization weighting, with a single stock weight cap of 15%, and the top two weighted stocks are highly concentrated[46][47] - The index's industry distribution is characterized by "core focus and diversified collaboration," with a significant tilt towards two popular sub-sectors: pig farming (47.41%) and seed planting (15.52%), reflecting the core value and investment potential of these sectors[51][52] - The index demonstrates strong cyclical attributes, with a long-term annualized return exceeding 12% over the past 20 years, significantly outperforming broader indices like the Shanghai Composite Index and CSI 300[67][68] - The agriculture sector's valuation is currently in a low-to-neutral range, with a PE-TTM of 24.56x as of March 2026, corresponding to a historical percentile of 27.06%, providing a certain safety margin[76][85]

Summary of Conference Call Records Industry: Swine Industry Key Points 1. **Pig Price Decline**: As of March 20, the average price of live pigs in China has dropped to 9.87 yuan/kg, marking a recent cycle low. This decline has led to significant losses for farmers, with average losses reaching 291.97 yuan per head, approaching the previous cycle's maximum loss of 306.56 yuan per head. The combination of increasing feed costs and a pessimistic outlook has weakened the profitability of fattening pigs, further suppressing the willingness to restock piglets [1][2][3]. 2. **Weak Restocking Season**: The typical post-New Year restocking season for piglets is underperforming, with prices falling to 294 yuan per head, down from 557 yuan per head in the same period last year. The average profit per head has narrowed to 14 yuan, compared to 237 yuan in the previous year. This low demand is expected to lead to accelerated culling of breeding sows, creating a feedback loop that could hasten capacity reduction in the industry [2][3]. 3. **Investment Recommendations**: The report suggests focusing on companies with excess profitability potential amidst a tightening market. Key recommendations include leading breeding companies such as Muyuan Foods and Wens Foodstuffs, as well as other related stocks like Tian Kang Biological and New Hope Liuhe. The report emphasizes the importance of core assets and beta configuration in the current market [3]. Industry: Feed and Animal Health Key Points 1. **Feed Sector Dynamics**: The report highlights the rising prices of fishmeal, with CNF reference prices reaching 2500 USD/ton. Major feed companies like Haida Group are expected to continue raising prices across all feed categories, reflecting their pricing power and profitability amid rising raw material costs. The report recommends Haida Group for its market share and performance potential [3]. 2. **Animal Health Sector**: The report notes the importance of innovation in the animal health sector, particularly in the face of intense competition. The emergence of new products, especially in the pet health market, is expected to drive growth. Companies like Reap Bio and Biokang are highlighted as potential beneficiaries of this trend [3]. Industry: Crop Production Key Points 1. **Grain Security Strategy**: The "14th Five-Year Plan" emphasizes the importance of grain production capacity, aiming for a target of approximately 1.45 trillion jin. The focus is on increasing yields through improved agricultural practices and technology [4][5]. 2. **Seed Industry Focus**: The report stresses the need for advancements in the seed industry to ensure food security, with a push for self-sufficiency in seed sources. Companies like Longping High-Tech and Dabeinong are mentioned as key players in this sector [4][5]. Industry: Poultry Sector Key Points 1. **Chicken Market Dynamics**: The report discusses the impact of avian influenza on breeding stock imports, leading to uncertainty in supply. The price of broiler chicks has increased, while the price of live chickens remains stable. The report suggests that the industry is at a turning point after three years of downturn, with potential for recovery [6][7]. 2. **Egg Market Trends**: The report notes a slight increase in chick and egg prices, with the average price of commercial chicks at 3.56 yuan per chick. The spring restocking season is expected to support prices, with a focus on companies with strong market positions like Xiaoming Co. [7][8]. Industry: Beef Sector Key Points 1. **Beef Price Trends**: The report indicates a rise in prices across the beef supply chain, with prices for fattened bulls at 26.02 yuan/kg, reflecting a year-on-year increase of 7.88%. The dairy sector is still experiencing low prices, with fresh milk prices at 3.02 yuan/kg [8][9]. 2. **Investment Outlook**: The report expresses optimism for the beef sector, particularly as the dairy cow reduction phase nears completion and a super cycle for beef emerges. Companies with strong resources and a "milk-meat linkage" model are expected to perform well [9]. Industry: Pet Market Key Points 1. **Growth of Pet Market**: The pet market is projected to grow significantly, with a forecasted market size of 312.6 billion yuan by 2025. Domestic brands are gaining market share through innovation and localization strategies [10]. 2. **Export Trends**: Pet food exports have seen substantial growth, with a reported increase of 38.57% in quantity and 15.06% in value in early 2026. Companies like Guibao Pet and Zhongchong Co. are highlighted as key players in this expanding market [10].

Market Strategy - The report suggests that the market is currently in a "bottomed" state despite fluctuations, indicating a potential for recovery in the medium term. Investors are encouraged to focus on mid-cap blue-chip stocks during this period [2][6]. - The external shocks from geopolitical conflicts have largely been priced in by the market, leading to a decrease in risk perception within the domestic market, which supports a stable A-share market [2][6]. Sector Strategy - The report highlights that rising energy prices are positively impacting the agricultural sector, suggesting a strong investment opportunity due to the upward pressure on agricultural product prices caused by geopolitical disturbances [4][6]. - The agricultural sector is expected to benefit from increased production costs, which may lead to a consolidation of inefficient players and improve overall industry dynamics [4][6]. Thematic Strategy - The report emphasizes the importance of energy security, particularly in the photovoltaic sector, where new national standards are being developed to enhance safety and reliability. This shift is expected to benefit key manufacturers and core material suppliers in the solar industry [5][6]. - The report identifies specific investment opportunities in the agricultural sector, recommending stocks such as Hainan Rubber (601118), Longping High-Tech (000998), Muyuan Foods (002714), and Haida Group (002311) [4][6].