Yes Outsourcing means that enterprises hand over some non-core businesses to external companies or teams to reduce costs, improve efficiency and focus on their core businesses. There are many kinds of credit card installment business in Postal Savings Bank, including transaction installment, bill installment, merchant installment and electricity sale installment. There are many processes and links, and professional outsourcing companies are needed to help banks handle and manage installment business. Therefore, the Postal Savings Bank is an outsourcing business.