Exhibits 5.2 and 23.5

                      LETTERHEAD OF MABEY & COOMBS, L.C.

September 22, 2005

Board of Directors
Tintic Gold Mining Company
3131 Teton Drive
Salt Lake City, Utah 84109

Re: Legal Opinion regarding the Proposed Stock Dividend Distribution to March
5, 2004 Shareholders of Tintic Gold Mining Co., a Utah corporation (now known
as Kiwa Bio-Tech Products Group Corp.) and Consent to Use of Name in
Registration Statement

Ladies and Gentlemen:

In our capacity as counsel for Tintic Gold Mining Company, a Nevada
corporation (formerly a subsidiary of Tintic Gold Mining Company, a Utah
corporation) (the "Company"), we have participated in the corporate
proceedings relative to the authorization and issuance of 1,009,643 shares of
Common Stock, par value $.001 per share ("Company Common Stock") to the
stockholders of record as of March 5, 2004, of Tintic Gold Mining Company, a
Utah corporation ("Tintic-Utah") (the "Distribution"), in exchange for all of
its right, title and interest, in and to its three (3) patented mining claims
located in Juab County, Utah, pursuant to the terms of an Agreement of
Distribution by and between Tintic-Utah and the Company (the "Distribution
Agreement"). A copy of the Distribution Agreement is included as Exhibit 1.1
to the original registration statement of which the prospectus is a part, all
as set out and described in the Company's registration statement on Form SB-2
(File No. 333-119742) under the Securities Act of 1933 (the "Registration
Statement") filed on or about October 14, 2004. We have also participated in
the preparation and filing of the original Registration Statement and all
amended Registration Statements.

Based upon the foregoing and upon our examination of originals (or copies
certified to our satisfaction) of the Company's Articles of Incorporation, its
Organizational Minutes, any Waivers of Notice of the Organization Meeting, all
Ratifications of the Organizational Meeting, all subsequent minutes of the
meetings of the board of directors and any Consents of Directors to Corporate
Action, all correspondence by and between the Company and its stock transfer
agent, Cottonwood Stock Transfer, the Distribution Agreement as well as the
minutes and consents authorizing execution of the  Distribution Agreement, all
closing documents relative to the merger transaction by and between Tintic-
Utah and Kiwa Bio-Tech Products Corp., some of which include the requisite
corporate authorization on the part of Tintic-Utah to enter into and otherwise
execute the Distribution Agreement, various officers' certificates and other
documents of the Company and upon inquiry of such officers of the Company as
we have deemed necessary or appropriate as a basis for the opinions
hereinafter expressed, and assuming the accuracy and completeness of all
information supplied us by the Company, none of which we have any reason to
doubt, we are of the opinion that:

(1) The Company is a corporation duly organized and validly existing under the
laws of the State of Nevada and its Constitution;

(2) The Company has taken all requisite corporate action and all action
required by the laws of the State of Nevada and its Constitution with respect
to the authorization, issuance and sale of the Company Common Stock, to be
distributed pursuant to terms and conditions of the Distribution Agreement and
the subsequent Registration Statement, as amended;

(3) The 1,009,643 shares of the Company Common Stock, which have been issued
and which are currently held in escrow by Cottonwood Stock Transfer for the
benefit of March 5, 2004 Tintic-Utah shareholders and which will be physically
delivered to such persons in the Distribution in the manner set forth in the
Registration Statement, as amended, relating to the Company Common Stock, are
duly authorized, validly issued, fully paid and non-assessable shares of the
Company Common Stock;

We hereby consent to the use of this opinion as an exhibit to the Registration
Statement, and any amendments thereto, and to the references to our firm in
the prospectus.

Yours very truly,



                         /s/Mabey & Coombs, L.C.
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                         MABEY & COOMBS, L.C.