China’s New International Land-Sea Trade Corridor has reported a surge in growth, according to figures released by China Railway Nanning Group and reported by the government.

On his first day in office, leader Xi Jinping inherited an ambitious road map to build 10,000 miles of high-speed rail to link China’s biggest cities. He took those plans and supersized them.

Thailand expects its 609-km (378 miles) portion of a high-speed railway that will connect it with China through Laos to begin ...