光引发剂：供给趋于集中+新兴领域需求蓬勃发展，行业景气度复苏

Investment Rating - The industry investment rating is "Add" (Maintain) [1] Core Viewpoints - The supply of photoinitiators is becoming concentrated, and demand in emerging fields is booming, leading to a recovery in industry prosperity [1] - Photoinitiators are essential raw materials for light-curing materials, accounting for 3%-5% of the total usage in these materials, but their cost constitutes 10%-15% of the overall cost of light-curing products [2] - The demand for photoinitiators is expected to grow due to the expansion of applications in both traditional and emerging fields, such as automotive parts, electronics, PCB manufacturing, and 3D printing [2] Summary by Sections Basic Information - Photoinitiators are crucial for UV coatings, inks, and adhesives, enabling the curing process through exposure to specific wavelengths of light [2] - Light-curing materials are environmentally friendly and energy-efficient alternatives to traditional solvent-based products, contributing to the reduction of VOC emissions [2] Industry Trends - The main domestic manufacturers of photoinitiators have faced production halts, which may lead to collaborative development within the industry [5] - The competitive landscape shows that China is a major producer of photoinitiators, with significant production capacities from companies like Jiu Ri New Materials and Qiangli New Materials [5] Supply and Demand Dynamics - Supply-side challenges include production stoppages due to safety and environmental issues at key manufacturers, which may hinder recovery efforts [5] - The demand for photoinitiators is driven by the growth of light-curing applications in new sectors, indicating a positive outlook for the industry [5] Related Companies - Key companies in the industry include Jiu Ri New Materials, Qiangli New Materials, Yangfan New Materials, and Gurin Technology [6]