Known as the "Lock Capital of South China," Zhongshan's Xiaolan Town has cemented its smart lock industry as a backbone of Guangdong-made products through market-responsive innovation, rigorous quality control, and comprehensive market presence.

Guangdong Zhengxin Intelligent Technology Co, one of the smart lock makers in the town, seized the market opportunity early in 2013. Investing heavily in R&D, the company has completed the technological iteration from optical fingerprint recognition to facial recognition and remote video communication, maintaining rapid growth during the sector's boom. 

As markets evolved, Zhengxin expanded online sales channels and overseas markets, with exports now exceeding 20% of sales.

Also a smart lock maker, Zhongshan Yangguang Lock Industry Co (YGS) sets industry benchmarks through uncompromising quality. Its internal standards surpass industry norms, testing locks for over 200,000 open-close cycles and conducting hundreds of pre-shipment inspections. 

This quality edge helped YGS capture about 50% of China's hotel lock market, serving over 250,000 hotel projects. The company has also been developing IoT systems for apartments, campuses and other application scenarios.

Today, Xiaolan is home to more than 200 smart lock manufacturers and over 5,300 supporting firms. In 2024, its above-scale lock industry output reached 7 billion yuan, with exports accounting for nearly 30% of China's total.