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Investor relations

We provide you with QSI’s investment information.

Disclosure Information
No. Disclosure title A person liable for submission Date
20 Quarterly report (general corporation) QSI 2025-05-14
Quarterly report (general corporation)
  • A person liable for submissionQSI
  • Date2025-05-14
19 소속부변경 코스닥시장본부 2025-04-30
소속부변경
  • A person liable for submission코스닥시장본부
  • Date2025-04-30
18 신탁계약해지결과보고서 QSI 2025-04-25
신탁계약해지결과보고서
  • A person liable for submissionQSI
  • Date2025-04-25
17 주식등의대량보유상황보고서(일반) 삼화양행 2025-04-09
주식등의대량보유상황보고서(일반)
  • A person liable for submission삼화양행
  • Date2025-04-09
16 임원ㆍ주요주주특정증권등소유상황보고서 이상헌 2025-03-28
임원ㆍ주요주주특정증권등소유상황보고서
  • A person liable for submission이상헌
  • Date2025-03-28
15 Results of regular shareholders' meeting QSI 2025-03-25
Results of regular shareholders' meeting
  • A person liable for submissionQSI
  • Date2025-03-25
14 [Including consolidation] Business report (general corporation) QSI 2025-03-17
[Including consolidation] Business report (general corporation)
  • A person liable for submissionQSI
  • Date2025-03-17
13 Submission of audit report QSI 2025-03-17
Submission of audit report
  • A person liable for submissionQSI
  • Date2025-03-17
12 Announcement of general meeting of shareholders QSI 2025-03-07
Announcement of general meeting of shareholders
  • A person liable for submissionQSI
  • Date2025-03-07
11 Reference documents QSI 2025-03-07
Reference documents
  • A person liable for submissionQSI
  • Date2025-03-07
10 Resolution to convene a general meeting of shareholders QSI 2025-02-24
Resolution to convene a general meeting of shareholders
  • A person liable for submissionQSI
  • Date2025-02-24
9 Decision on cash and in-kind dividends QSI 2025-02-24
Decision on cash and in-kind dividends
  • A person liable for submissionQSI
  • Date2025-02-24
8 Changes in sales or profit structure of more than 30% (15% for large corporations) QSI 2025-02-24
Changes in sales or profit structure of more than 30% (15% for large corporations)
  • A person liable for submissionQSI
  • Date2025-02-24
7 신탁계약에의한 취득 상황보고서 QSI 2025-02-21
신탁계약에의한 취득 상황보고서
  • A person liable for submissionQSI
  • Date2025-02-21
6 단기과열종목(3거래일 단일가매매) 지정 코스닥시장본부 2025-01-03
단기과열종목(3거래일 단일가매매) 지정
  • A person liable for submission코스닥시장본부
  • Date2025-01-03
5 (예고)단기과열종목(3거래일 단일가매매) 지정예고 코스닥시장본부 2024-12-30
(예고)단기과열종목(3거래일 단일가매매) 지정예고
  • A person liable for submission코스닥시장본부
  • Date2024-12-30
4 [투자주의]15일간 상승종목의 당일 소수계좌 매수관여 과다종목 시장감시위원회 2024-12-30
[투자주의]15일간 상승종목의 당일 소수계좌 매수관여 과다종목
  • A person liable for submission시장감시위원회
  • Date2024-12-30
3 Set shareholder list closure period or base date QSI 2024-12-12
Set shareholder list closure period or base date
  • A person liable for submissionQSI
  • Date2024-12-12
2 [정정]주식등의대량보유상황보고서(일반) 삼화양행 2024-12-05
[정정]주식등의대량보유상황보고서(일반)
  • A person liable for submission삼화양행
  • Date2024-12-05
1 [정정]주식등의대량보유상황보고서(일반) 삼화양행 2024-12-05
[정정]주식등의대량보유상황보고서(일반)
  • A person liable for submission삼화양행
  • Date2024-12-05
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