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EXHIBIT 31.2

CERTIFICATION PURSUANT TO SECTION 302 OF THE
SARBANES OXLEY ACT

I, Yin, TianHui, certify that:

(1) I have reviewed this annual report on Form 10-K/A of
RAINEARTH INC. for the year ended April 30, 2010;

(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
small business issuer as of, and for, the periods presented in this report;

(4) The small business issuer's other certifying officer(s) 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)) for the
small business issuer 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 small business issuer, 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
control over financial reporting, or caused such internal control 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 small business issuer's disclosure controls and procedures and presented
in this report our conclusions about the effectiveness of the disclosure
controls and procedures, as of the end of the period covered by this report
based on such evaluation; and

(d) Disclosed in this report any
change in the small business issuer's internal control over financial reporting
that occurred during the small business issuer's most recent fiscal quarter (the
small business issuer's fourth fiscal quarter in the case of an annual report)
that has materially affected, or is reasonably likely to materially affect, the
small business issuer's internal control over financial reporting; and

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(5) The small business issuer's other certifying officer(s) and
I have disclosed, based on our most recent evaluation of internal control over
financial reporting, to the small business issuer's auditors and the audit committee of the small business issuer's board of
directors (or persons performing the equivalent functions):

(a) All significant deficiencies
and material weaknesses in the design or operation of internal control over
financial reporting which are reasonably likely to adversely affect the small
business issuer's ability to record, process, summarize and report financial
information; and

(b) Any fraud, whether or not
material, that involves management or other employees who have a significant
role in the small business issuer's internal control over financial reporting.

|                 | RainEarth Inc.
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|August 24 , 2010 | By:           
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