---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-23-010007"
form_type: "8-K"
ticker: "ZLAB"
cik: "0001704292"
company_name: "Zai Lab Ltd"
filed_at: "2023-03-31T23:59:59+00:00"
generated_at: "2026-06-17T08:02:20.378912+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.15
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Zai Lab reports temporary HKEX trading suspension resolved same day after publishing annual results

## Summary
- Trading in Zai Lab shares on HKEX suspended at 9:06 a.m. on March 31, 2023 pending publication of annual results.
- Annual results published at 12:38 p.m. same day; suspension ended at 1:00 p.m.
- Financial information in annual results consistent with previously filed 10-K (March 1, 2023); suspension not related to business conduct or results substance.

## SEC filing metadata
- accession: 0001628280-23-010007
- form_type: 8-K
- ticker: ZLAB
- cik: 0001704292
- company_name: Zai Lab Ltd
- filed_at: 2023-03-31T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.15
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1704292/000162828023010007/0001628280-23-010007-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1704292/000162828023010007/zlab-20230331.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-23-010007
- JSON: https://secwatch.observer/filing/0001628280-23-010007.json
- Plain text: https://secwatch.observer/filing/0001628280-23-010007.txt

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