The Rs 2,000-crore funding from PM CARES should boost India’s manufacture of ventilators — essential for hospitals treating patients of Covid-19. We must therefore note that Chinese manufacturers have identified permanent magnets, based on rare earths, as a key element in the supply chain for making ventilators — as well as MRI-and CT-scanning devices. China dominates the global supply of rare earths, which are also essential for missile guidance systems, wind energy turbines, and daily use devices like smartphones. The lockdown in China led to a contraction in its rare earth industry, and exports, in the first quarter of the
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