For letter of references, which referees, would be ideal to include? Supervisors from a related to education field I would assume would be best??

Principals, Supervisors, employers, professors and sometimes pastors and TEFL instructors.

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Who Should I Request a Letter of Recommendation From?
To teach in South Korea, two letters of recommendation are required. The EPIK and GEPIK programs only accept letters that are written from direct supervisors from past or current workplaces or from academic professors at colleges and universities. ...
For the recommendation letter, do we need to submit the same two letters that we put on the application? I realized one of my letters has a digital signature and got a new one from a different professor
Yes, you would want to make sure the letter you submitted through the application is the same as the physical one you submit. Talk to your recruiter about submitting the updating the new letter.
For the LORs, since we can't have the recommenders send us the letters with digital ink, is the only way for them to send it to us through mail? Or can they make a photo copy of the LORs with their ink signatures on them?
EPIK is not accept photocopies of the recommendation letters. so you have to ask your reference to mail it to you. however, referees can always print out their own letters that they write, right? sorry I cannot get this part.
For a letter of recommendation without a company letterhead, should I use a business card of the company or the individual who wrote the letter?
you have to use business card of the company. If it individual which also has company letterhead on, it will be fine too.
For the letters of recommendation there has to be an ink signature? I only have the digital signature and the my University shut down and it will be difficult to get it mailed to me.
To upload in the application, it may have ink signatures. However, when you're asked to submit all the required docs after passing your EPIK interview, the letters must have ink signatures from your references.

For letter of references, which referees, would be ideal to include? Supervisors from a related to education field I would assume would be best??

For letter of references, which referees, would be ideal to include? Supervisors from a related to education field I would assume would be best??

Related Articles

Who Should I Request a Letter of Recommendation From?

For the recommendation letter, do we need to submit the same two letters that we put on the application? I realized one of my letters has a digital signature and got a new one from a different professor

For the LORs, since we can't have the recommenders send us the letters with digital ink, is the only way for them to send it to us through mail? Or can they make a photo copy of the LORs with their ink signatures on them?

For a letter of recommendation without a company letterhead, should I use a business card of the company or the individual who wrote the letter?

For the letters of recommendation there has to be an ink signature? I only have the digital signature and the my University shut down and it will be difficult to get it mailed to me.