TANCHENG GROUP CO., LTD. (QSJC): auditor change — Tancheng Group dismisses auditor Onestop Assurance, appoints Guangdong Prouden

TANCHENG GROUP CO., LTD.

Dismissed Onestop Assurance PAC effective Feb 27, 2026; its FY2024 and FY2023 reports included a going-concern emphasis.
No disagreements with Onestop; only previously disclosed material weaknesses in internal controls were noted.
Appointed Guangdong Prouden CPAs GP as new independent auditor for fiscal year ending Dec 31, 2025; no prior consultation.
Material weaknesses include lack of audit committee, inadequate internal control structure, and poor IT controls.

item 4.01 item 9.01

Key facts

Extracted from this filing and checked against the source text.

Auditor Changes SEC 8-K Item 4.01/4.02 confidence 0.9

TANCHENG GROUP CO., LTD. engaged Guangdong Prouden CPAs GP as its auditor.

Action: engagement
Auditor: Guangdong Prouden CPAs GP

Exact text from the filing

On February 27, 2026, the Board of Directors of the Company approved the appointment of Guangdong Prouden CPAs GP (“Guangdong Prouden”) as the Company’s new independent registered public accounting firm for the fiscal year ending December 31, 2025.

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Auditor Changes SEC 8-K Item 4.01/4.02 confidence 0.9

TANCHENG GROUP CO., LTD. dismissed Onestop Assurance PAC as its auditor.

Action: dismissal
Auditor: Onestop Assurance PAC
Successor: Guangdong Prouden CPAs GP

Exact text from the filing

On February 27, 2026, the Board of Directors of Tancheng Group Co., Ltd. (the “Company”) approved the dismissal of Onestop Assurance PAC (“Onestop Assurance”) as the Company’s independent registered public accounting firm, effective immediately.

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Source: SEC EDGAR

accession 0001683168-26-001381

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