In order to strengthen the promotion of important local tax laws and tax-saving measures, and encourage people to shop and store cloud invoices, the Revenue Service Bureau, Yunlin County combined with Uniform-Invoices implementation. It is implemented on October 17, 2020 (Saturday) from 14:30 to 18 pm At that time, the "Invoices for Public Welfare - Digging Treasures at the Second-hand Market" tax promotion event was held in the central turf of the Gukeng Green Tunnel Park. There were many good things at the scene. The public was invited to join in the grand event and donate invoices for public welfare.