SINGAPORE/HONG KONG (Reuters) – Barclays Plc will announce job cuts in its investment banking businesses across Asia, including closing the businesses in Korea and Taiwan, people with direct knowledge of the matter told Reuters, in the latest cuts for the London-based lender in the region. Next week’s cuts will include corporate finance and advisory staff in those two countries, as well as equities sales and research staff, the people said, and will include at least 50 jobs across Asia as the bank seeks to slash costs in a global restructuring.