The Finance Ministry will continue using existing instruments while considering aspects of the goods and services tax (GST) as a way to streamline the overall tax structure, says Datuk Seri Amir Hamzah Azizan.br br The Finance Minister II said, however, that it would take time for the government to review all the possible tax instruments for this purpose.br br He told reporters on Monday (March 4) amid concerns over the new SST rate and incoming high-value goods tax (HVGT) in May.