1. Consumer products: Thai Nippon Seiki manufactures and distributes consumer products such as home and office electronics. electrical appliances such as air conditioners, refrigerators, TVs and kitchen appliances such as coffee makers, microwaves, etc. The company's production and design of products focuses on convenience and safety for users.

2. Electronic manufacturing services: Thai Nippon Seiki provides electronic manufacturing services to external customers. This includes the design and manufacture of various electronic components such as printed circuits, circuit boards, sensors, and other electronic devices used in industries such as the electrical industry, communication industry and transportation industry.