Global crude steel production increased by 5.4% year-on-year to 162.7-million tonnes in May, the World Steel Association (worldsteel) reported on Monday. Its data shows that China's crude steel output had increased by 10% year-on-year to 89.1-million tonnes in May, while India's output had increased by 5.1% year-on-year to 9.2-milliion tonnes.