Core Insights - The hydrogenated nitrile butadiene rubber (HNBR) industry in China is at a critical stage of technological breakthroughs and market expansion, with a projected production of 311 tons in 2024, representing a year-on-year growth of 17.36% [1][15] - China is the second-largest consumer of HNBR globally, accounting for 20.6% of total consumption, but faces a significant demand gap of 3,982 tons due to low capacity utilization [1][15] - Key technological advancements, such as the development of rhodium-ruthenium bimetallic catalysts by Beijing University of Chemical Technology and the "Zhan's catalyst" by Zannan Technology, have broken a 30-year foreign monopoly, with some products reaching international leading levels [1][15] Industry Overview - HNBR is a highly saturated specialty elastomer produced through the hydrogenation of nitrile rubber (NBR), enhancing its properties such as heat resistance (150-180℃), oxidation resistance, ozone resistance, radiation resistance, and chemical corrosion resistance [2] - The industry has evolved through three main stages: initial development (1980-2010), technological breakthroughs and industrialization (2010-2020), and high-quality development (2021-present) [4][5][6] Industry Development History - The initial stage saw the introduction of HNBR technology in China through collaborations in the 1980s, with limited production capabilities [4] - The technological breakthrough phase from 2010 to 2020 included the establishment of the first large-scale production line by Zannan Technology, marking a significant step towards domestic production [5] - The current phase emphasizes high-quality development, with domestic production capacity expected to reach 10,000 tons per year by 2024 [6][7] Industry Chain - The HNBR industry chain includes upstream raw materials (nitrile rubber, hydrogen, catalysts), midstream production processes, and downstream applications in sectors such as automotive, aerospace, and medical [9] Current Industry Status - The industry is characterized by a low capacity utilization rate of less than 40%, despite a total capacity of 10,000 tons per year, indicating a need for improved customization and market acceptance [15] - Major players like Shandong Daon, Zhejing Zansheng, and Qilu Petrochemical dominate the market, collectively holding over 80% of the production capacity [17] Key Companies' Performance - Shandong Daon has achieved a production capacity of 3,000 tons per year and has developed proprietary HNBR preparation technology, with a revenue of 1.286 billion yuan in Q1 2025, up 6.58% year-on-year [19] - Xi'an Kaili New Materials has initiated a 3,000 tons per year HNBR project, with a revenue of 626 million yuan in Q1 2025, reflecting a 105.25% increase [21] Industry Trends - The industry is shifting towards technology-intensive and high-end applications, with significant growth in demand from the military sector and high-end manufacturing [23] - Future trends include enhanced collaboration across the industry chain, green manufacturing practices, and increased international competition as foreign companies enter the market [24][26]

Group 1 - Aikolan's controlling shareholder Liu Yi terminated the share transfer agreement for 4 million shares, which represents 5% of the company's total share capital, with no change in control [1] - Wancheng Group announced a cash dividend of 4.00 yuan per 10 shares, totaling 71.9959 million yuan, with the record date on May 19, 2025 [1] - Wanda Film plans to invest in Lezi Tiancheng and engage in strategic cooperation, acquiring a total of 7% equity in the company [2] Group 2 - China Resources Double Crane's subsidiaries received approval for two drugs, indicating progress in their product pipeline [3] - Fosun Pharma's subsidiary's drug was included in the breakthrough therapy program, highlighting its innovative potential [4] - Zhongheng Group's subsidiary received approval for naloxone injection, enhancing its product offerings [5] Group 3 - Shenzhen Airport reported a passenger throughput of 5.3202 million in April, a year-on-year increase of 23.50% [8] - Hangzhou Bank successfully issued 5 billion yuan in technology innovation bonds, aimed at supporting tech innovation [10] - Jiuzhou Pharmaceutical received approval for a raw material drug used in treating severe depression, expanding its product range [12] Group 4 - Aihua Group reported a 25.38% decline in revenue for the first four months of the year, indicating potential challenges [27] - Changhua Group received a project designation notice from a well-known new energy vehicle company, with an expected total sales amount of approximately 108 million yuan [28] - Nanchao Food reported a slight revenue decrease of 0.98% in April, reflecting market conditions [30]

| 证券代码：002838 | 证券简称：道恩股份 | 公告编号：2025-084 | | --- | --- | --- | | 债券代码：128117 | 债券简称：道恩转债 | | 山东道恩高分子材料股份有限公司 关于参加2025年山东辖区上市公司投资者 网上集体接待日活动的公告 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。 为进一步加强与投资者的互动交流，山东道恩高分子材料股份有限公司（以下简称 "公司"）将参加由山东证监局、山东上市公司协会与深圳市全景网络有限公司联合举 办的"2025 年山东辖区上市公司投资者网上集体接待日活动"，现将相关事项公告如 下： 本次活动将采用网络远程的方式举行，投资者可登录 "全景路演"网站 （http://rs.p5w.net）；或关注微信公众号（名称：全景财经）；或下载全景路演 APP, 参与本次互动交流。活动时间为 2025 年 5 月 15 日（周四）15:00-16:30。届时公司总 经理、董事会秘书、财务总监将在线就公司经营状况等投资者关心的问题，与投资者进 行沟通与交流，欢迎广大投资者踊跃参与！ 山东道恩 ...

| 证券代码：002838 | 证券简称：道恩股份 | 公告编号：2025-083 | | --- | --- | --- | | 债券代码：128117 | 债券简称：道恩转债 | | 山东道恩高分子材料股份有限公司 关于道恩转债即将停止转股暨赎回前最后半个交易日的 重要提示性公告 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。 截止本公告披露日，距离"道恩转债"停止转股仅剩最后半个交易日（即 2025 年 5 月 12 日下午交易时段），2025 年 5 月 12 日收市后，未转股的"道恩转债"将停止转 股，剩余可转债将按照 101.73 元/张的价格被强制赎回。若被强制赎回，投资者可能面 临损失。 2.特提醒持有人注意在限期内转股。敬请投资者注意投资风险。 特别提示： 1、"道恩转债"赎回价格：101.73 元/张（含当期应计利息，当期年利率为 2.00%， 且当期利息含税），扣税后的赎回价格以中国证券登记结算有限责任公司深圳分公司（以 下简称"中国结算"）核准的价格为准。 2、赎回条件满足日：2025 年 4 月 15 日 3、停止交易日：2025 年 ...

| 证券代码：002838 | 证券简称：道恩股份 | 公告编号：2025-082 | | --- | --- | --- | | 债券代码：128117 | 债券简称：道恩转债 | | 山东道恩高分子材料股份有限公司 关于道恩转债即将停止转股暨赎回前最后一个交易日的 重要提示性公告 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。 重要内容提示： 1.最后转股日：2025 年 5 月 12 日 2025 年 5 月 12 日是"道恩转债"最后一个转股日，当日收市前，持有"道恩转债" 的投资者仍可进行转股；2025 年 5 月 12 日收市后，未转股的"道恩转债"将停止转股。 2.截至 2025 年 5 月 9 日收市后，距离"道恩转债"停止转股并赎回仅剩 1 个交易 日。特提醒持有人注意在限期内转股。投资者如未及时转股，可能面临损失，敬请投资 者注意投资风险。 特别提示： 1、"道恩转债"赎回价格：101.73 元/张（含当期应计利息，当期年利率为 2.00%， 且当期利息含税），扣税后的赎回价格以中国证券登记结算有限责任公司深圳分公司（以 下简称"中国结算" ...

| 证券代码：002838 | 证券简称：道恩股份 | 公告编号：2025-081 | | --- | --- | --- | | 债券代码：128117 | 债券简称：道恩转债 | | 关于控股股东及一致行动人持股比例被动稀释跨越1%的 提示性公告 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。 特别提示： 山东道恩高分子材料股份有限公司（以下简称"公司"）自 2025 年 4 月 22 日至 2025 年 5 月 7 日因公司可转债转股导致公司总股本发生变化，导致公司控股股东及其 一致行动人在持股数量不变的情况下，合计权益比例被动稀释，现将本次权益变动情况 公告如下： 1．基本情况 信息披露义务人一 道恩集团有限公司 1 山东道恩高分子材料股份有限公司 1、本次权益变动因公司可转债转股导致公司总股本发生变化，致使控股股东及一 致行动人合计权益比例由 57.93%被动稀释至 56.94%，触及 1%的整数倍，不涉及持股数 量发生变化。 2、本次权益变动不涉及要约收购，不会导致公司控股股东及一致行动人发生变化， 不会影响公司的治理结构和持续经营。 一、控股股东 ...

| 证券代码：002838 | 证券简称：道恩股份 | 公告编号：2025-080 | | --- | --- | --- | | 债券代码：128117 | 债券简称：道恩转债 | | 山东道恩高分子材料股份有限公司 关于提前赎回道恩转债实施暨即将停止转股的重要提示性公告 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。 重要内容提示： 2.截至 2025 年 5 月 8 日收市后，距离"道恩转债"停止转股并赎回仅剩 2 个交易 日。特提醒持有人注意在限期内转股。投资者如未及时转股，可能面临损失，敬请投资 者注意投资风险。 特别提示： 1、"道恩转债"赎回价格：101.73 元/张（含当期应计利息，当期年利率为 2.00%， 且当期利息含税），扣税后的赎回价格以中国证券登记结算有限责任公司深圳分公司（以 下简称"中国结算"）核准的价格为准。 1 1.最后转股日：2025 年 5 月 12 日 2025 年 5 月 12 日是"道恩转债"最后一个转股日，当日收市前，持有"道恩转债" 的投资者仍可进行转股；2025 年 5 月 12 日收市后，未转股的"道恩转债" ...

| 证券代码：002838 | 证券简称：道恩股份 | 公告编号：2025-079 | | --- | --- | --- | | 债券代码：128117 | 债券简称：道恩转债 | | 山东道恩高分子材料股份有限公司 关于提前赎回道恩转债实施暨即将停止转股的重要提示性公告 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。 重要内容提示： 1.最后转股日：2025 年 5 月 12 日 2025 年 5 月 12 日是"道恩转债"最后一个转股日，当日收市前，持有"道恩转债" 的投资者仍可进行转股；2025 年 5 月 12 日收市后，未转股的"道恩转债"将停止转股。 2.截至 2025 年 5 月 7 日收市后，距离"道恩转债"停止转股并赎回仅剩 3 个交易 日。特提醒持有人注意在限期内转股。投资者如未及时转股，可能面临损失，敬请投资 者注意投资风险。 特别提示： 1、"道恩转债"赎回价格：101.73 元/张（含当期应计利息，当期年利率为 2.00%， 且当期利息含税），扣税后的赎回价格以中国证券登记结算有限责任公司深圳分公司（以 下简称"中国结算"）核准的价 ...

| 证券代码：002838 | 证券简称：道恩股份 | 公告编号：2025-078 | | --- | --- | --- | | 债券代码：128117 | 债券简称：道恩转债 | | 山东道恩高分子材料股份有限公司 关于提前赎回道恩转债实施暨即将停止交易的重要提示性公告 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。 1.最后交易日：2025 年 5 月 7 日 2025 年 5 月 7 日是"道恩转债"最后一个交易日，当日"道恩转债"简称为"Z 恩 转债"；2025 年 5 月 7 日收市后"道恩转债"将停止交易。 2.最后转股日：2025 年 5 月 12 日 2025 年 5 月 12 日是"道恩转债"最后一个转股日，当日收市前，持有"道恩转债" 的投资者仍可进行转股；2025 年 5 月 12 日收市后，未转股的"道恩转债"将停止转股。 3.截至 2025 年 5 月 6 日收市后，距离"道恩转债"停止交易仅剩 1 个交易日，距 离"道恩转债"停止转股并赎回仅剩 4 个交易日。本公司特提醒投资者仔细阅读本公告 内容，关注相关风险，谨慎交易"道恩转债 ...

Group 1 - The company plans to provide a total guarantee amount of up to RMB 1.323 billion for its subsidiaries and joint ventures in 2025, with specific limits based on their asset-liability ratios [2][3] - The guarantee period will last from the approval date at the 2024 annual general meeting until the 2025 annual general meeting [2] - The company has signed a guarantee contract with Chongqing Bank for a maximum amount of RMB 60 million for its wholly-owned subsidiary, Daon Polymer Materials (Chongqing) Co., Ltd [3][5] Group 2 - As of the announcement date, the total external guarantees provided by the company and its subsidiaries amount to RMB 965.5 million, which is 30.95% of the company's latest audited net assets attributable to shareholders [6] - There are no overdue guarantees or guarantees involved in litigation, nor any losses due to guarantees [6] Group 3 - The last trading day for the "Daon Convertible Bonds" is May 7, 2025, after which trading will cease [9] - The last conversion day for the bonds is May 12, 2025, and any unconverted bonds will be redeemed [10][12] - The redemption price is set at RMB 101.73 per bond, including accrued interest, with a tax-inclusive rate of 2.00% [11][22] Group 4 - The company triggered the redemption clause for the "Daon Convertible Bonds" due to the stock price exceeding 130% of the conversion price for 15 out of 30 trading days [13][18] - The company issued a total of 3.6 million convertible bonds, with a face value of RMB 100 each, amounting to RMB 360 million [14][15] Group 5 - The redemption process includes a series of important dates: trading stops on May 8, 2025, redemption registration on May 12, and redemption execution on May 13 [23] - After the redemption, the "Daon Convertible Bonds" will be delisted from the Shenzhen Stock Exchange [12][23]