FACTBOX | Port operator CK Hutchison caught in between US-China trade spat

It is the largest foreign infrastructure investor in Australia, and also invests in toll roads and bridges in China, and infrastructure materials in Hong Kong.

CKI holds the largest stake in Power Assets Holdings which supplies electricity and gas to millions of consumers across continents.

Ports and related services

The group's sprawling maritime empire extends across 24 countries, with interests in 53 ports and 295 berths. These include container terminals in five of the world's 10 busiest ports.

CK Hutchison's busiest ports include Shenzhen's deep water Yantian port, Mingdong and Pudong terminals in Shanghai, Hong Kong's Kwai Tsing Port, container terminals in Belgium, Germany, and the Netherlands, and Westports Malaysia.