Group 1 - Company plans to increase its stake in Shanghai Milai Chip Semiconductor Co., Ltd. from 19.35% to 37.28% by investing 200 million yuan [2] - The investment will be used specifically for the research and development of projection exposure machines and related components, and not for dividends or debt repayment [2] - The company aims to enhance its competitiveness in the precision optics and semiconductor projection exposure machine industries, aligning with its long-term strategic development [2] Group 2 - The investment is expected to enrich the company's business types and positively impact its long-term development and strategic layout [3] - The company's main business involves the production and sale of various organic pigments and water-based inks, achieving a net profit of 47.42 million yuan in the first three quarters, a year-on-year increase of 7.56% [3]