- Savita Transfor Oil (India) : https://www.savita.com/businesses/pdf/transol/Transol_GBX%20I.pdf
- Omera Transformer Oil (Bangladesh) : http://www.omera.com.bd/images/pdfs/pds/Omera%20Hypertrans%20Transformer%20Oil_Sep10.pdf
- Servo Transformer Oil (India): https://sriramagencies.in/wp-content/uploads/2015/05/SERVO-Electra.pdf