Thailand's ESG bond market has grown 55% annually and now exceeds 1 trillion baht in outstanding value. The SEC is set to launch two new bond types—Transition Bonds and Thailand Amber Bonds—to help businesses transitioning toward net zero by 2650 (Buddhist Era). CIMB Thai is introducing tools to help "brown sector" (carbon-heavy) industries plan their transition, addressing a critical financing gap. With ADB estimating Thailand needs 500–700 billion baht annually through 2578 for its climate targets, new instruments and bank initiatives are essential to unlock capital for non-green businesses seeking a credible path to sustainability.