Goldman Sachs, JPMorgan and Morgan Stanley moved to delist hundreds of derivatives traded in Hong Kong, following a US government ban on American investment in companies considered to be helping China’s military.

Many of the 484 so-called structured products were linked to China’s three largest telecommunications operators, China Mobile, China Telecom and China Unicom. Many others were tied to the city’s benchmark Hang Seng Index and its sister Hang Seng China Enterprises index, both of which include China Mobile and China Unicom.