Exhibit 5.1

                     LAW OFFICE OF MICHAEL M. KESSLER, P.C.


May 26, 2010

Dr. Banch Luangaram
President/Director
Amerthai Minerals, Inc.
Foursons Inn, Rambutri Road
Pra Nakorn Bangkok 10200 Thailand

RE:  Opinion  of  Counsel  for  Registration  Statement  on Form S-1  Under  the
     Securities Act of 1933 (the "Registration Statement") of Amerthai Minerals,
     Inc., a Nevada corporation.

Dear Dr. Luangaram:

The Law Office of Michael M. Kessler,  P.C,  (the "Firm").  has acted as special
counsel for Amerthai Minerals Inc, Inc. a Nevada corporation (the "Company") for
the  limited   purpose  of  rendering  this  opinion  in  connection   with  the
registration  (pursuant to the Registration  Statement) of 2,500,000 shares (the
"Shares") of the common stock, par value $0.001 per share, of the Company

In our capacity as special counsel to the Company,  we have examined  originals,
or copies certified or otherwise  identified to our satisfaction,  the following
documents:

     1.   Certificate of Incorporation of the Company, as amended to date;
     2.   Bylaws of the Company, as amended to date;
     3.   The records of corporate  proceedings  relating to the issuance of the
          Shares authorizing the offering.
     4.   Such other  instruments  and  documents,  if any,  as we believe to be
          necessary for the purpose of rendering the following opinion.

In such  examinations,  we have assumed the authenticity and completeness of all
documents, certificates and records submitted to us as originals, the conformity
to the original instruments of all documents, certificates and records submitted
to us as copies,  and the authenticity and completeness of the originals of such
instruments.  As to certain  matters of fact relating to this  opinion,  we have
relied on the  accuracy  and  truthfulness  of  certificates  of officers of the
Company  and  on   certificates  of  public   officials,   and  have  made  such
investigations of law as we have believed necessary and relevant.

Michael M. Kessler, the principal of the firm is a licensed attorney.  We do not
express  any  opinion  as to the laws of any other  jurisdiction  other than the
General  Corporation  Law of the State of Nevada (the  "NVCL"),  all  applicable
provisions  of the  State  of  Nevada  Constitution  and all  reported  judicial
decisions  interpreting  those laws as well as U.S.  federal  securities law. No


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                     LAW OFFICE OF MICHAEL M. KESSLER, P.C.


opinion is  expressed  herein with  respect to the  qualification  of the Shares
under the securities or blue sky laws of any state or any foreign  Jurisdiction.
This  opinion  is  limited  to the laws,  including  the  rules and  regulations
thereunder,  as in effect on the date hereof. Based on the following we have the
following opinion:

1. Amerthai  Minerals,  Inc. (the "Company") is a duly and legally organized and
existing Nevada State  Corporation,  with its office and mailing address located
at Foursons Inn, Rambutri Road Pra Nakorn Bangkok 10200 Thailand The Articles of
Incorporation  and  corporate  registration  fees were  submitted  to the Nevada
Secretary of State's  office and filed with the office on January 27, 2010.  The
Company's  existence  and form is valid  and legal and  active  pursuant  to the
representation  above and from a review of the corporate  filing  information at
the Nevada  Secretary of States Office as can be reviewed at Nevada Secretary of
States Office web site whose address is http://nvsos.gov/.

2. The Company is a fully and duly  incorporated  Nevada corporate  entity.  The
Company  has one class of Common  Stock at this time.  Neither  the  Articles of
Incorporation, Bylaws, and amendments thereto, nor subsequent resolutions change
the non-assessable  characteristics of the Company's common shares of stock. The
Common Stock previously issued by the Company is in legal form and in compliance
with the laws of the  State of  Nevada,  and when such  stock was  issued it was
fully paid for and  non-assessable.  The common stock to be sold under this Form
S-1  Registration  Statement  is  likewise  legal under the laws of the State of
Nevada.

3. To our knowledge, the Company is not a party to any legal proceedings nor are
there any  judgments  against  the  Company,  nor are there any actions or suits
filed  or  threatened  against  it or  its  officers  and  directors,  in  their
capacities as such,  other than as set forth in the registration  statement.  We
know of no disputes involving the Company and the Company has no claim,  actions
or inquiries from any federal,  state or other government agency,  other than as
set  forth in the  registration  statement.  We know of no  claims  against  the
Company or any reputed claims  against it at this time,  other than as set forth
in the registration statement.

4.  The  Company's  outstanding  shares  are  all  Common  Shares.  There  is no
liquidation  preference right held by the present  Shareholder upon voluntary or
involuntary liquidation of the Company.

5. By  directors'  resolution,  the  Company  has  authorized  the  issuance  of
2,500,000  shares of common stock for this offering.  The Company's  Articles of
Incorporation  presently  set the  authorized  capital  stock of the  Company at
75,000,000 shares designated as Common Stock, with a $0.001 par value.

Based upon the  foregoing,  we are of the opinion that the shares being  offered
for sale and  issuable by the Company  pursuant to this  Registration  Statement
will be duly authorized and validly issued,  fully paid and non-assessable  when
issued as contemplated by the registration statement.

                     LAW OFFICE OF MICHAEL M. KESSLER, P.C.


     The Firm does  hereby  consent to the use of this  opinion as an exhibit to
the  Registration   Statement  and  to  the  references  to  this  firm  in  the
Registration Statement. In giving this consent, I do not hereby admit that I was
acting within the category of persons whose consent is required  under Section 7
of the  Securities  Act and the  rules and  regulations  of the  Securities  and
Exchange Commission thereunder.

Yours truly,


/s/ Michael M. Kessler
- --------------------------------------
Law Office of Michael M. Kessler, P.C.
By: Michael M. Kessler, Esq