Health insurance for 14 year old child

[Clive]

Good morning
My son aged 14 has recently moved to Thailand to live with his mother and I would be a lot happier if he had health insurance to go to a private hospital as and when the time comes as I know from experience that traditional Thai hospitals aren't always the best.
My son is dual nationality Thai/English so therefore classed as a Thai citizen.
Could anyone recommend a good health insurance company that covers Thailand be it an international or Thai only company.
Thank you in advance 

[chakatee]

some insurance companies will only allow him on a policy where an adult is the main insured so you might have to insure both your son and his mother.