---
schema_version: "secwatch.filing_event.v1"
accession: "0001829126-23-002103"
form_type: "8-K"
ticker: "MLGO"
cik: "0001800392"
company_name: "MicroAlgo Inc."
filed_at: "2023-03-17T23:59:59+00:00"
generated_at: "2026-06-17T23:40:35.388320+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# MicroAlgo replaces auditor Marcum with OneStop Assurance PAC effective March 16, 2023

## Summary
- Marcum LLP terminated as independent auditor on March 16, 2023; no disagreements or reportable events in prior two fiscal years.
- OneStop Assurance PAC engaged as new independent registered public accounting firm on the same date.
- No audit reports were issued by Marcum from Sept 30, 2022 through March 16, 2023.
- Change approved by Audit Committee and Board of Directors.
- No consultations with OneStop before engagement regarding accounting principles or disagreements.

## SEC filing metadata
- accession: 0001829126-23-002103
- form_type: 8-K
- ticker: MLGO
- cik: 0001800392
- company_name: MicroAlgo Inc.
- filed_at: 2023-03-17T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 4.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1800392/000182912623002103/0001829126-23-002103-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1800392/000182912623002103/microalgoinc_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001829126-23-002103
- JSON: https://secwatch.observer/filing/0001829126-23-002103.json
- Plain text: https://secwatch.observer/filing/0001829126-23-002103.txt

## Key facts
- Auditor Changes
  MicroAlgo Inc. engaged OneStop Assurance PAC as its auditor.
  - Action: engagement
  - Auditor: OneStop Assurance PAC
  source text: And the Company engaged OneStop Assurance PAC (“OneStop”) as its independent registered public accounting firm on the same date.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1800392/000182912623002103/0001829126-23-002103-index.htm
- Auditor Changes
  MicroAlgo Inc. dismissed Marcum LLP as its auditor.
  - Action: dismissal
  - Auditor: Marcum LLP
  - Successor: OneStop Assurance PAC
  source text: On March 16, 2023, Marcum LLP (“Marcum”) ceased to be the independent auditor of MicroAlgo Inc. (formerly known as “Venus Acquisition Corporation,” either or together as the “Company”) due to the termination of the engagement letter between the Company and Marcum.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1800392/000182912623002103/0001829126-23-002103-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.