Hong Kong tycoon Li Ka-shing’s company CK Hutchison Holdings, which recently sold its Panama Canal ports, should think twice about which side it wants to stand with, according to a scathing newspaper commentary posted by Beijing’s top office for the city’s affairs on its website.

China’s top office on Hong Kong issues reposted a sharp attack on CK Hutchison Holdings Ltd. for agreeing to sell a controlling stake in Panama ports, warning companies to be very careful about which “side they should stand on.