| Conservation, restoration, and maintenance of natural forests | ACT-U-BGH2CC | TH | Agriculture, forestry and fishing |
| Forestry plantation | ACT-U-N5GTEH | TH | Agriculture, forestry and fishing |
| Growing of perennial and non-perennial crops | ACT-U-1UDAT2 | TH | Agriculture, forestry and fishing |
| Livestock production | ACT-U-FJ76Q3 | ASEAN | Agriculture, forestry and fishing |
| Sustainable aquaculture production | ACT-U-8TSGJ9 | TH | Agriculture, forestry and fishing |
| Sustainable forest management | ACT-U-S8A59A | TH | Agriculture, forestry and fishing |
| Sustainable oil palm production | ACT-U-P85X38 | TH | Agriculture, forestry and fishing |
| Sustainable perennial or non-perennial crops (e.g. corn, mango, banana) | ACT-U-6US580 | TH | Agriculture, forestry and fishing |
| Sustainable rubber trees production | ACT-U-KGHC5F | TH | Agriculture, forestry and fishing |
| Manufacture of aluminum | ACT-U-29465Z | TH | Manufacturing |
| Manufacture of basic chemicals (carbon black, soda ash, chlorine, ethylene, propylene, butadiene, aromatics, nitric acid, methanol, anhydrous ammonia) | ACT-U-8XTZ2P | TH | Manufacturing |
| Manufacture of basic iron and steel | ACT-U-EQD7DE | EU | Manufacturing |
| Manufacture of batteries | ACT-U-4TE5LX | EU | Manufacturing |
| Manufacture of cement | ACT-U-F7D4E2 | EU | Manufacturing |
| Manufacture of energy efficiency equipment for buildings | ACT-U-034GGD | EU | Manufacturing |
| Manufacture of hydrogen | ACT-U-GG0V1U | EU | Manufacturing |
| Manufacture of low-carbon technologies for transport | ACT-U-WGVCAK | TH | Manufacturing |
| Manufacture of plastics in primary form | ACT-U-8VW125 | EU | Manufacturing |
| Manufacture of renewable energy technologies and products | ACT-U-FKUJ8N | TH | Manufacturing |
| Manufacturing of other low-carbon technologies | ACT-U-3TCWST | TH | Manufacturing |
| Retrofitting of sea and coastal freight and passenger water transport | ACT-U-XY3V9R | TH | Manufacturing |
| Bioenergy generation and production (including SAF) | ACT-U-6UHJ76 | TH | Electricity, gas, steam |
| Cogeneration of heating/cooling and power using renewable sources of energy | ACT-U-LZJSPQ | TH | Electricity, gas, steam |
| Electricity generation from renewable non-fossil gaseous and liquid fuels | ACT-U-4Y1900 | EU | Electricity, gas, steam |
| Energy production from natural gas | ACT-U-EMWVF9 | TH | Electricity, gas, steam |
| Geothermal power generation | ACT-U-DAEVCQ | TH | Electricity, gas, steam |
| Heating and cooling distribution | ACT-U-G3FR6N | TH | Electricity, gas, steam |
| Hydropower generation | ACT-U-8LDQW8 | TH | Electricity, gas, steam |
| Landfill gas capture and utilisation | ACT-U-DS7BRV | TH | Electricity, gas, steam |
| Marine energy generation | ACT-U-0R41YX | TH | Electricity, gas, steam |
| Production of heating and cooling using waste heat | ACT-U-UP8JB8 | TH | Electricity, gas, steam |
| Solar energy generation | ACT-U-QQ0BT3 | TH | Electricity, gas, steam |
| Storage of electricity and thermal energy | ACT-U-6SUUQW | TH | Electricity, gas, steam |
| Transmission and distribution networks for renewable and low-carbon gases | ACT-U-0N9ZZ1 | EU | Electricity, gas, steam |
| Transmission and distribution of electricity | ACT-U-VT6NRK | TH | Electricity, gas, steam |
| Transmission and distribution of energy | ACT-U-U92HD4 | TH | Electricity, gas, steam |
| Wind energy generation | ACT-U-610KFD | TH | Electricity, gas, steam |
| Anaerobic digestion of bio-waste or wastewater | ACT-U-GCQ7MU | TH | Water, sewerage, waste |
| Construction, extension, upgrade, and operation of centralised wastewater collection and treatment | ACT-U-V8CUJG | TH | Water, sewerage, waste |
| Permanent sequestration of captured CO2 | ACT-U-6ERJVS | TH | Water, sewerage, waste |
| Utilisation of captured CO2 | ACT-U-EMM53D | TH | Water, sewerage, waste |
| Waste to Energy | ACT-U-21VGEG | TH | Water, sewerage, waste |
| Construction of new buildings | ACT-U-4ZZ7R0 | TH | Construction |
| Demolition and site preparation | ACT-U-LBR4UD | TH | Construction |
| Enabling infrastructure for low-emission transport | ACT-U-LB8SP4 | TH | Construction |
| Installation and operation of electric heat pumps | ACT-U-TRP4S7 | TH | Construction |
| Installation, maintenance, and repair of special-purpose building equipment | ACT-U-GCBC7K | TH | Construction |
| Point-source capture of CO2 | ACT-U-24RS0R | TH | Construction |
| Renovation of the existing buildings | ACT-U-BM3PXP | TH | Construction |
| Freight transport by road | ACT-U-MWZMN7 | TH | Transportation and storage |
| Inland water transport | ACT-U-FQ6YB6 | TH | Transportation and storage |
| Other passenger land transport | ACT-U-5T629E | TH | Transportation and storage |
| Passenger and freight air transport | ACT-U-1J4J3D | EU | Transportation and storage |
| Sea and coastal water transport | ACT-U-57B7U9 | TH | Transportation and storage |
| Transport via railways | ACT-U-ERCS8R | TH | Transportation and storage |
| Transportation of captured CO2 | ACT-U-22CBXV | TH | Transportation and storage |
| Urban and suburban passenger land transport | ACT-U-64M3R4 | TH | Transportation and storage |
| Acquisition or ownership of buildings | ACT-U-TC1PL1 | TH | Real estate |
| Early warning systems | ACT-U-KKMRK9 | TH | Unclassified (no NACE link) |
| Introduction of energy efficiency and decarbonisation measures in manufacturing activities not specified in the Thailand Taxonomy | ACT-U-Y6ALKF | TH | Unclassified (no NACE link) |