CIMB Thai's sustainability head says lenders are shifting from checking whether a project is green to asking whether the business has a credible transition plan, clear emissions-reduction numbers, investment costs, an accountable owner and solid evidence. The SEC is consulting on transition and Thailand Amber bond rules until 21 August 2026. For an SME, expect loan requests to need a documented plan with figures, not just an eco label. Most of this is general direction; no new loan rule for SMEs is stated.