EXHIBIT 31.2



CHIEF FINANCIAL OFFICER CERTIFICATION



I, K.W. (“K.D.”) DIEPHOLZ, certify
that:



1. I have reviewed this report on Form 10-Q of DYNARESOURCE, INC.;
2. Based on my knowledge, this report does not contain any untrue statement
of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under
which such statements were made, not misleading with respect to the period covered by this report;
3. Based on my knowledge, the financial statements, and other financial information
included in this report, fairly present in all material respects the financial condition, results of operations and cash flows
of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls
and procedures (as defined in Exchange Act Rules 13a-15 (e) and 15d-15(e) and internal controls over financial reporting (as defined
in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under
our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made
known to us by others within those entities, particularly during the period in which this report is being prepared;

b)Designed such internal controls over financial reporting, or caused such internal controls over financial reporting to be
designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation
of financial statements for external purposes in accordance with generally accepted accounting principles;

c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our
conclusion about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report
based on such evaluation;

| | d) | Disclosed in this report any change to the registrant's internal controls
over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter
in the case of an report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal
controls over financial reporting; and,
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1. The registrant’s other certifying officer and I have disclosed, based
on our most recent evaluation of internal controls over financial reporting, to the registrant’s auditors and the audit committee
of registrant’s board of directors (or persons performing the equivalent functions):

| | a) | all significant deficiencies and material weaknesses in the design or operation
of internal controls over financial reporting which are reasonably likely to adversely affect the registrant’s ability to
record, process, summarize and report financial information; and,
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| | b) | any fraud, whether or not material, that involves management or other employees
who have a significant role in the registrant’s internal controls over financial reporting.
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Date: May 15, 2018







/s/ K.W. (“K.D.”) Diepholz

K.W. (“KD”) Diepholz;

Chief Financial Officer