President Xi Jinping has sought to allay concerns about China’s Belt and Road initiative, saying: “Everything should be done in a transparent way and we should have zero tolerance for corruption.” He promised high standards in a bid to dispel complaints the projects costing many billions of dollars leave developing countries with too much debt. Xi avoided mentioning debt complaints in a speech opening a forum attended by leaders from some three dozen countries to celebrate his signature foreign initiative. But he said Beijing wants “open, green and clean cooperation” with “zero tolerance for corruption.”