Regarding to your below email, The dividend paid by a Thai company is subject to 10 percent withholding tax. But I Saw at Double tax agreement (DTA) between Thai & Malaysia subject to 15% percent withholding tax, please take a look at article 10 (Dividends)
If want Thai to pay dividend please be careful about the ratio of debt to equity (3:1) at BOI, because we want to reduce capital from BOI for our trading business.