"Made in China" used to be a label associated with labor-intensive and low value-added commodities. However, over the years, the products behind the label have evolved from shoes and toys, to electric vehicles and drones.

As the vanguard of China's manufacturing, the Guangdong-Hong Kong-Macao Greater Bay Area has witnessed the nation's transformation from world factory to smart manufacturing, and incubated 70 unicorn companies or startups valued at more than $1 billion. So what's the secret behind the success of "Made in GBA"?