At the "Danang Fintech Summit 2025" on June 7th, the Da Nang Department of Science and Technology received a proposal to pilot the use of USDT (Tether) for international tourists to exchange goods and services. This is one of the ideas Da Nang is exploring through a controlled testing environment (sandbox), aiming to facilitate the operation of new technology models locally before clear legal frameworks are established. Mr. Le Son Phong, Deputy Director of the Da Nang Department of Science and Technology, stated that Da Nang is progressively shaping its role in fostering a sustainable innovation ecosystem, including the fields of blockchain and digital assets. Leveraging its advantageous mechanisms, resources, and open ecosystem, the city plans to implement a sandbox mechanism for groundbreaking technological initiatives, coupled with piloting flexible policy models tailored to the realities of innovation.