Exhibits 5.1 and 23.2
                  LETTERHEAD OF MABEY & COOMBS, L.C.

October 14, 2004

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.)

Ladies and Gentlemen:

In our capacity as counsel for Tintic Gold Mining Company (formerly 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"),
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 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. _________) under
the Securities Act of 1933 (the "Registration Statement").  We have also
participated in the preparation and filing of the Registration Statement.

Based upon the foregoing and upon our examination of originals (or copies
certified to our satisfaction) of such corporate records, 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, 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;

(2) The Company has taken all requisite corporate action and all action
required by the laws of the State of Nevada with respect to the authorization,
issuance and sale of the Company Common Stock, to be distributed pursuant to
the Registration Statement;

(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 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 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.