{"filings":[{"id":108079,"accession_number":"0001683168-26-001381","cik":1753391,"company_name":"TANCHENG GROUP CO., LTD.","ticker":"QSJC","form_type":"8-K","filed_at":"2026-03-02T23:59:59+00:00","items":["4.01","9.01"],"status":"ready","headline":"Tancheng Group dismisses auditor Onestop Assurance, appoints Guangdong Prouden","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["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."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"negative","materiality_score":0.55,"calibrated_materiality_score":0.55,"market_cap_usd":723393.905,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":264889,"accession_number":"0001683168-23-007910","cik":1753391,"company_name":"TANCHENG GROUP CO., LTD.","ticker":"QSJC","form_type":"8-K/A","filed_at":"2023-11-13T23:59:59+00:00","items":["5.02"],"status":"ready","headline":"Tancheng Group amends 8-K to disclose omitted related-party transactions with new director Longjiao Li","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Appointed Longjiao Li as director on Oct 12, 2023; board now has two members: Yu Yang and Longjiao Li.","Corrected omission: Ms. Li and Huaxin Investment had $350K U.S. listing guidance agreement (July 2022) and $50K advisory agreement (Feb 2023) with subsidiary Qiansui Media.","No changes to previously reported appointments of officers Caixia Zhang and Ping Li.","Ms. Li co-founded Huaxin Investment in 2017 and serves as independent director at DT Cloud Acquisition Corporation."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"market_cap_usd":723393.905,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":264890,"accession_number":"0001683168-23-007086","cik":1753391,"company_name":"TANCHENG GROUP CO., LTD.","ticker":"QSJC","form_type":"8-K","filed_at":"2023-10-12T23:59:59+00:00","items":["5.02"],"status":"ready","headline":"Tancheng Group appoints new director, CFO (CEO's mother), and Secretary; Yu Yang becomes Chairman","summary_kind":"llm","event_type":"leadership","confidence":"high","bullets":["Appointed Longjiao Li, 35, co-founder of Shenzhen Qianhai Huaxin Investment, as director; Board now has two members.","Yu Yang appointed Chairman; remains CEO, President, Secretary, Treasurer.","Caixia Zhang (Yu Yang's mother) appointed CFO; Yu Yang resigns as CFO.","Ping Li appointed Secretary; previously secretary of Qiansui Media.","Disclosed related-party transactions: 700k shares assigned to Zhang Caixia Limited in Feb 2023."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"market_cap_usd":723393.905,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":301168,"accession_number":"0001683168-23-002569","cik":1753391,"company_name":"TANCHENG GROUP CO., LTD.","ticker":"QSJC","form_type":"8-K","filed_at":"2023-04-21T23:59:59+00:00","items":["5.07","9.01"],"status":"ready","headline":"Tancheng Group increases authorized common shares from 75M to 1B via written consent of majority holder","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["On April 11, 2023, holder with ~97% voting power approved amendment to increase authorized shares from 75M to 1B.","Amendment filed with Nevada Secretary of State on April 11, 2023.","Sole director also approved the increase on same date.","No other matters were submitted to vote of security holders."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.15,"market_cap_usd":723393.905,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":321052,"accession_number":"0001683168-23-001715","cik":1753391,"company_name":"TANCHENG GROUP CO., LTD.","ticker":"QSJC","form_type":"8-K","filed_at":"2023-03-24T23:59:59+00:00","items":["1.01","2.01","3.02","5.05","5.06","9.01"],"status":"ready","headline":"Tancheng Group completes acquisition of Qiansui International, ceases to be shell company","summary_kind":"llm","event_type":"m_and_a","confidence":"high","bullets":["On March 20, 2023, Tancheng Group acquired Qiansui International via contribution, making it a wholly-owned subsidiary.","Tancheng ceased to be a shell company; common stock trades on OTC under QSJC.","Qiansui Media sells 'Jue Cheng' ornament products online; plans cultural tourism projects including a health resort town.","Key risks: 77% of purchase costs from one supplier; no housing fund contributions for employees; lease may be invalid."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"market_cap_usd":723393.905,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":339149,"accession_number":"0001683168-22-008375","cik":1753391,"company_name":"TANCHENG GROUP CO., LTD.","ticker":"QSJC","form_type":"8-K","filed_at":"2022-12-13T23:59:59+00:00","items":["5.07","9.01"],"status":"ready","headline":"Bigeon Corp. changes name to Tancheng Group Co., Ltd. after written consent","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Shareholder with ~79.9% voting power approved name change via written consent on Oct 17, 2022.","Sole director also approved; Certificate of Amendment filed with Nevada Secretary of State same day.","Company will request new trading symbol on OTC markets following the name change.","Prior name was Bigeon Corp.; new name is Tancheng Group Co., Ltd."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.15,"market_cap_usd":723393.905,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":339148,"accession_number":"0001683168-22-008355","cik":1753391,"company_name":"TANCHENG GROUP CO., LTD.","ticker":"QSJC","form_type":"8-K","filed_at":"2022-12-12T23:59:59+00:00","items":["4.01","9.01"],"status":"ready","headline":"Bigeon Corp. dismisses auditor Mac Accounting, appoints Onestop Assurance","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Board dismissed Mac Accounting Group effective Dec 9, 2022; Mac's reports included going concern explanatory paragraph.","No disagreements with Mac; material weaknesses in internal controls previously disclosed.","Appointed Onestop Assurance PAC as new independent auditor for FY ending July 31, 2023.","No prior consultations with Onestop Assurance on accounting or audit issues."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"negative","materiality_score":0.6,"calibrated_materiality_score":0.6,"market_cap_usd":723393.905,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null},{"id":356522,"accession_number":"0001753391-22-000014","cik":1753391,"company_name":"TANCHENG GROUP CO., LTD.","ticker":"QSJC","form_type":"8-K","filed_at":"2022-09-09T23:59:59+00:00","items":["1.01","5.01","9.01"],"status":"ready","headline":"Bigeon Corp. changes control: 79.9% stake sold to Tancheng; Yu Yang becomes sole director","summary_kind":"llm","event_type":"other_material","confidence":"high","bullets":["Olegas Tunevicius sold 3,500,000 shares (79.9% of outstanding) to Shanxi Qiansui Tancheng Culture Media for $424,849.25.","Yu Yang (39) appointed CEO, CFO, Secretary and sole director effective August 31, 2022.","Company is a shell; Purchaser intends to acquire an ongoing business post-closing.","Seller resigned as sole officer/director; no family relationship with Purchaser."],"consensus_eps_estimate":null,"consensus_eps_actual":null,"consensus_revenue_estimate":null,"consensus_revenue_actual":null,"consensus_period":null,"consensus_source":null,"sentiment":"neutral","materiality_score":0.7,"calibrated_materiality_score":0.7,"market_cap_usd":723393.905,"market_cap_bucket":"microcap","market_cap_source":"finnhub_profile2","market_cap_as_of_date":"2026-05-28","daily_digest_date":null,"daily_digest_url":null,"daily_digest_rank":null}],"next_cursor":null}