EXHIBIT 31.1
CERTIFICATION PURSUANT TO SECTION
302 OF THE SARBANES OXLEY ACT
EXHIBIT 31.1
CERTIFICATION PURSUANT TO SECTION
302 OF THE SARBANES OXLEY ACT
I, Kexi Xu, certify that:
(1) I have reviewed this 10QSB for March 31, 2006 of Jointland Develoment, Inc.,
formerly Global Assets and Services, 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 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)) and internal control
over financial reporting (as defined in Exchange Act Rules 13a-15(f) and
15d-15(f)) 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
(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.
Date: May 25, 2006
/s/ Kexi Xu
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Kexi Xu
CEO and Acting CFO
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