Which Chinese stock exchange saw the 2015 market crash centered on the Shanghai Composite Index?

The 2015 Chinese stock-market crash was centered on the Shanghai Stock Exchange and its Shanghai Composite Index.

Chinese equities rose sharply during the first half of 2015, supported by retail investor participation, margin borrowing, and strong expectations about economic growth. The Shanghai Composite reached a 2015 closing high of 5,166.35 on June 12. It then fell rapidly, losing roughly one-third of its value over the following month.

Authorities responded with measures including restrictions on some share sales, support for purchases, investigations of market activity, and changes affecting initial public offerings. The turbulence continued into 2016, when additional declines renewed concerns about China’s economic outlook and the effectiveness of market interventions.

The Shanghai Composite is an index, while the Shanghai Stock Exchange is the trading venue. That distinction matters because the question asks for the exchange. Shenzhen also hosts a major Chinese stock market, and Hong Kong is a separate financial center, but neither is the exchange named by the Shanghai Composite.