2 Chinese cities; Shenzhen and Guangzhou. Both are located in the province of Guangdong - just north of Hong Kong.
Guangdong was one of the early “economic free zones” starting in the 90s and boomed in a big way. Shenzhen tends to be a little less industrial and more “high tech” than Guangzhou and acts as the financial center for the Guangdong province. Guangzhou still has a fair amount of electronics assembly activity, but in my opinion (having been to all of the places mentioned in this post - including those that follow) not as much as Shenzhen and Shanghai.
However, since Hong Kong was turned back over by the UK in ‘99 some amount of that money started flowing through HK and it’s financial/stock markets.
1997 was the transfer of power. I was there.