海明润专注于聚晶金刚石复合片（PDC）等超硬复合材料及制品的研发、制造和销售，是国家级高新技 术企业以及专精特新 "小巨人" 企业。其产品广泛应用于石油天然气钻探、矿山开采、机械加工等多个 重要领域，凭借先进的技术和稳定的产品质量，在行业内占据了重要地位。 随着海明润新三板挂牌申请获受理，公司未来将拥有更高的市场关注度和融资便利性，这将为海明润的 技术研发、市场拓展以及产能提升提供更为强大的支持。对于绿通科技而言，海明润成功挂牌新三板创 新层，意味着其投资布局初见成效。未来，随着海明润在资本市场的持续发展，有望为绿通科技带来可 观的投资回报。双方在产业层面的协同发展，未来也将有进一步的探讨空间。 绿通科技依托产业基金寻找新的增长引擎，不断挖掘具有潜力的投资标的，在实现投资收益的同时，也 将不断完善自身的产业链布局，为企业的长期可持续发展注入新的活力。（文穗） （文章来源：证券时报网） 近日，深圳市海明润超硬材料股份有限公司披露了公开转让说明书，公司新三板挂牌材料被正式受理， 且拟于新三板创新层挂牌。值得关注的是，在海明润的股东列表中，绿通科技(301322)赫然在列。这一 动态不仅标志着海明润向资本市场迈出关 ...

Core Viewpoint - Shenzhen Haimingrun Superhard Materials Co., Ltd. (referred to as "Haijingrun") is attempting to return to the A-share market after nearly a decade since its last IPO attempt, with a deadline to complete the listing by the end of 2026 to avoid potential buyback requests from investors [2][3][8]. Group 1: Company Background and Previous IPO Attempts - Established in August 2000, Haijingrun specializes in the research, development, manufacturing, and sales of polycrystalline diamond composite sheets (PDC) and other superhard materials, primarily focusing on oil and gas drilling tools [3][4]. - In June 2015, Haijingrun submitted its IPO application for the ChiNext board but withdrew it in August 2016 after facing significant operational challenges due to declining oil prices, which led to a sharp drop in revenue and profits [5][6][11]. - The company reported revenues of 188.44 million, 202.74 million, and 136.25 million from 2013 to 2015, with net profits of 36.36 million, 42.63 million, and 23.28 million respectively, and a net profit of less than 5 million in the first half of 2016 [5][6]. Group 2: Current Financial Status and Future Plans - As of 2023, Haijingrun's revenue reached 256.6 million, with a net profit of 46.34 million, indicating a recovery to levels similar to those in 2013 [6][8]. - In 2024, the company achieved a revenue of 291 million and a net profit of 57.69 million, but still fell short of the new listing requirements for the ChiNext board, which now mandates a net profit of at least 60 million in the most recent year [7][8]. - Haijingrun has submitted an application for listing on the New Third Board and aims to transition to the Beijing Stock Exchange, which is seen as the only viable option for a quick A-share listing [2][8]. Group 3: Risks and Challenges - The company faces significant time constraints and operational challenges to meet the listing deadline by the end of 2026, as it must be listed on the New Third Board for at least 12 months before applying for the Beijing Stock Exchange [8][9]. - Haijingrun's reliance on a limited number of clients remains a concern, with its largest client, National Oilwell Varco, contributing 38.22% and 41.08% of its revenue in 2023 and 2024, respectively [11][13]. - The company has acknowledged the risks associated with fluctuating oil and gas prices, which previously led to its IPO failure, and continues to face challenges in diversifying its product offerings beyond PDC products [14][15].