Longyan, a provincial city in southern China, is home to several major technological companies. Here are some of the key firms operating in Longyan:

1. Lenovo Group (China): One of the largest technology companies globally, Lenovo Group operates numerous factories in Longyan and its nearby cities such as Wuxi, Suzhou, and Taizhou.

2. Haier Group (China): Another multinational company operating in Longyan, Haier Group has a presence in several industries, including electronics, home appliances, and automotive components.

3. Shenzhen Hongda Technology Co., Ltd. (China): A Chinese multinational technology company headquartered in Shenzhen, Hongda Technology Co., Ltd. is involved in various aspects of information technology, including hardware design, software development, system integration, and service support.

In conclusion, Longyan has a thriving technological sector with several major companies operating in the region. These companies not only manufacture advanced technologies but also play a vital role in driving economic growth and enhancing the quality of life for residents in Longyan and its surrounding areas.