In the 13th year of Tongzhi in Qing Dynasty (1874), Wang Guangzu opened a repair shop for Ermiaochun clocks and watches in Ningbo, and made screen inlays by hand, both for sale and repair. Wang Guangzu's business is getting bigger and bigger, and watch shops are opened in Nanjing, Zhenjiang and Shanghai. 19 15, Wang Guangzu, father-in-law Ying Qilin and disciple Zhuang Hongkui raised funds to open a watch and glasses shop in Zhenjiang, and the business was booming. It was named "Hendry", which means "Everything is prosperous and profitable" and "Business is booming and the market is profitable a hundred times", and its manager is Wang Guangzu.

Sun Meitang has built a new Li Meihua watch factory in Shanghai.

19 17, Sun Meitang took over hengdali foreign firm. Hengdali foreign firm was founded by French Hope on 1864. The English name is Hope Brothers Company, and the Chinese signboard is "Hengdali", which means prosperity, development and profit.