Cambodia and Vietnam on April 5, 2018, signed a DTA.
Thailand's tax agency has confirmed the DTA with Cambodia became effective on January 1, 2018.
Thailand and Cambodia signed a DTA on September 7, 2017.
According to preliminary media reports, Cambodia and Hong Kong have initiated negotiations towards concluding a DTA.
Singapore and Cambodia signed a DTA on May 20, 2016.
During three-day talks between Vietnam and Cambodia concluding on January 14, 2013, the two nations agreed to sign a Protocol to amend their DTA.
Thailand has called for the commencement of negotiations towards a DTA with Cambodia.