Core Insights - The article discusses the ongoing industrial upgrades in the Beijing-Tianjin-Hebei region, highlighting how local private enterprises are responding to national strategies through proactive layouts and collaborations [2] Group 1: Grey Fashion Technology Co., Ltd. - Grey Fashion relocated its production center to Hebei in 2015, investing 1.5 billion yuan to build a modern industrial park, which has led to a significant restructuring of its supply chain [3] - The company transformed its original production site in Beijing into an innovation incubator called "Grey Innovation Park," attracting over 170 enterprises and becoming a key platform for industrial upgrades and innovation [3][5] - Since 2017, Grey Fashion has invested over 35 million yuan in digital transformation, resulting in a significant increase in revenue from its high-end customization business, which grew from 30 million yuan to 100 million yuan [5] Group 2: Hotgen Biotech Co., Ltd. - Hotgen Biotech, established in 2005, has developed a clear growth path through the Beijing-Tianjin-Hebei collaborative development strategy, establishing a production base in Langfang in 2016 [6] - The Langfang base has become a crucial site for the production and commercialization of over 200 in vitro diagnostic products, significantly increasing the company's production capacity from millions to tens of millions [6] - Hotgen has expanded from diagnostics to innovative drugs, with over 100 diagnostic products and a focus on developing antibody and nucleic acid drugs, including a first-in-class drug for acute myocardial infarction [7]