波长光电：公司在新加坡、韩国等地设有子公司、参股公司或营销网点

Group 1 - The company has implemented a "domestic + overseas" dual-drive strategy, establishing subsidiaries, joint ventures, or marketing outlets in countries such as Singapore and South Korea [2] - The company's overseas business is expected to generate revenue of 127.50 million yuan in 2024, representing a year-on-year growth of 35% [2] - In the first three quarters of 2025, the overseas business revenue is approximately 81 million yuan, showing a year-on-year decline due to the impact of the international trade environment [2]