yundai Motor said on Thursday it plans to stop operations at two parts forging plants in South Korea next year as the automaker accelerates a shift away from petrol-powered cars. The plants in Ulsan, South Korea, which have been in operation since 1991 making engine parts, are expected to be closed in January and October, respectively. Hyundai Motor, the world's No.3 automaker by sales with its affiliate Kia Corp, is gradually reducing the proportion of internal combustion engines in its finished cars in favour of electrified vehicles.