Hi Employer,
We are Thai and using Thai as the native.
If you can find someone here to support you this project, we're sure we are one the best suit persons to help. One of us had worked in this Map Ta Phut Industrial Estate for more than 10 years, with 4 companies. In addition, we're living in Rayong and very nearby to the area - which probably can support for other tasks when you're visiting.
We have quite some friends of course after worked years there, and also might help as some of those are in the MPR community which is internal network group to coordinate activities among those large companies (sport, event, CSR, environment, etc.).
Nevertheless the scope of work is not 100% clear yet on what we have to do to support you. One thing is all these companies are usually not welcome you easily to support for entering and tour. You normally should be the institute or group of people from government or authority that come for some studying or investment purposes, etc. So I'm not really sure how you plan for this.
Anyway once scope is clear (what do to, when, how many company, etc.) - we can discuss on the bid price and time-frame.
You can exchange the message chat with us before you making decision.
Thank you!