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Panama’s top court has ruled against Hong Kong-based CK Hutchison

, saying a concession held by a subsidiary of the firm to operate ports at either end of the Panama Canal was unconstitutional.

The outcome is widely seen as a victory for the Trump administration’s security ambitions in the Western Hemisphere, with the U.S. seeking to counter China’s strategic influence in the region.

In a brief statement published late Thursday, the Supreme Court of Panama said the terms under which Panama Ports Company (PPC), a subsidiary of CK Hutchison, runs the port of Balboa on the Pacific Coast and Cristóbal on the Atlantic violated the country’s constitution and were no longer valid.