The company's main sales rely on large-scale distribution channels, and rice worms are sold through auction at the pond side. Having traversed China's southeastern coastal areas for years, Lin chose to conduct research on the "rice-worm symbiotic ecosystem" in Zhuhai.

Located at the confluence of saltwater and freshwater, Zhuhai is home to many unique species, making it highly suitable for agricultural entrepreneurship.

Lin said Macao is more international and has a more sophisticated market, but also has its limitations, such as limited space, relatively high costs and a somewhat concentrated industrial structure. By comparison, Zhuhai boasts broader development space and richer natural resources, making it more suitable for long-term industrial development.

"Zhuhai has introduced a series of special policies for young entrepreneurs from Macao in recent years. Overall, the city is very friendly to Macao youth who start businesses," he said.

The city has established innovation and entrepreneurship centers for young people from Hong Kong and Macao, along with dedicated incubation platforms and loans.

Lin said his company will continue to expand in Zhuhai.

"We have witnessed and benefited from the integrated development of the Guangdong-Hong Kong-Macao Greater Bay Area in recent years," he said, adding: "I am highly optimistic about its future development potential. And in my view, the Greater Bay Area is also the best choice for young people from Hong Kong and Macao to start their own businesses."

Hu Xiaotong contributed to this story.