In shenzhen city, the registration address of yu sang-seong scientific and technological co. Ltd. Is located in eight 108 community folk music industries in the city of lunghua, shenzhen city. The registration authority is the longhua superintendence of the shenzhen city market supervisory authority, represented by legal persons, and includes electronics, electronic metaware, sound equipment, stage lighting equipment, communications equipment (not including radio interference equipment and large power-free telephones and projects that are prohibited or restricted by the state council's decision), purchase and sale of hardware, household appliances and furniture (excluding recycling of regenerative resources); network technology development; electronic commerce (in the case of pre-licension administrative permits, prior administrative authorization must be obtained); investment advice (without financial, securities, insurance, banking and law, administrative regulations, prohibited and restricted projects decided by the state council); domestic trade (with the exception of projects for which the state council decides to be approved prior to registration); import and export of goods and technology (with the exception of laws, administrative regulations; projects that are prohibited by law and administrative regulations, subject to authorization). Production of sound equipment, stage lighting equipment