The U.S. has indicted Singapore-based shipping executive Teo Siong Seng in a price-fixing case. Legal experts suggest the action aligns with standard U.S. antitrust practices, even when targeting figures from allied nations.

The US indictment of Singapore-based shipping tycoon Teo Siong Seng in a price-fixing scandal has raised questions about Washington’s determination to pursue prominent figures from friendly countries, though legal experts say the case conforms to established American antitrust practice. Teo, the 71-year-old chief executive of Hong Kong company Singamas Container Holdings, has several prominent executive roles, including sitting as chair of the Singapore Business Federation and on the...