Officials have sold a potential US-led Pax Silica hub in the Philippines as a chance for the country to move up the technology supply chain, but as domestic backlash grows, Manila’s top diplomat to America has warned of losing the opportunity if they “drop the ball”.Analysts say Jose Manuel Romualdez’s message appeared aimed at critics but should be taken seriously, as regional rivals are also courting US-linked supply chain investment and some may be better placed to deliver.Romualdez told...