实控人被留置，“光刻胶概念股”世名科技股价大跌，称“与半步堂置业没业务往来”

Core Viewpoint - The recent detention of Lu Yong, the actual controller and chairman of Suzhou Shiming Technology Co., Ltd. (Shiming Technology), has raised concerns about the company's stability, although the company asserts that this incident is unrelated to its operations [2][4]. Company Background - Shiming Technology was established in December 2001 and went public in July 2016, focusing on the research, production, and sales of nano coloring materials, functional nano dispersions, specialty additives, electronic chemicals, and intelligent color adjustment systems [6]. - The company is a leading supplier of nano coloring materials and functional nano dispersions in China, with its products being critical for the performance of TFT-LCD displays [6]. Recent Developments - Lu Yong became the actual controller of Shiming Technology in February 2024 after acquiring a 10.1631% stake from the previous controller, Lü Shiming, at a price of 11.80 yuan per share, totaling approximately 3.87 billion yuan [3][4]. - Following Lu Yong's detention, Shiming Technology's stock price fell by over 10% on July 29, closing at 15.45 yuan per share, a decrease of 7.87% [2]. Financial Performance - In 2024, Shiming Technology reported a revenue of 697 million yuan, a year-on-year increase of 2.30%, and a net profit of 22.62 million yuan, up 25.61% from the previous year [6]. - The company's gross margin was 25.04%, a decrease of 0.92 percentage points year-on-year, while the net margin was 2.57%, slightly up by 0.01 percentage points [6]. Product Segmentation - The company's revenue from coloring agents reached 572 million yuan, accounting for 82% of total revenue, while specialty additives generated 123 million yuan, making up 17.58% [7]. - Shiming Technology has initiated the construction of a pilot line for its photoresist pigment dispersion, which is crucial for the LCD display industry [7]. Strategic Initiatives - On October 17, 2024, Shiming Technology announced a private placement plan to raise up to 310 million yuan, with approximately 230 million yuan allocated for a project to produce 5,000 tons of LCD display photoresist nano pigment dispersion [8]. - The company has also formed a joint venture with TCL Technology Industry Investment Co., Ltd. to enhance its strategic positioning in the display materials sector [8].