253590 - Neosem, Inc.

253590 Summary
Machinery
Stock Price & Overview
₩11,290 +150 (+1.35%) Close · Sep 4, 2026 KST
KOSDAQ | ₩KRW | Close: ₩11,290  ≈ US$8  ·  Market cap ₩0.5tn (≈ $354m)
Why this page exists. Korean issuers file to DART, not the SEC, and almost nothing is published in English. Titles here are translated; where kstock has read the filing, the row carries the explanation and the amount in won and dollars. How we pick »

253590 DART Filings

ks

Neosem delays ₩6.7bn tester delivery deadline to December

Neosem moved its semiconductor test-equipment contract's end from August 31 to December 31, 2026 after consulting the customer. The ₩6.67bn value equals 6.34% of FY2024 consolidated revenue. Neosem Technology, its subsidiary, is the buyer. Payment is due within 90 days of delivery, with no advance. The amendment does not give a more detailed reason for the schedule change.

Contract08/28/26kstock explained
₩6.7bn≈ $5m
ks

Neosem extends ₩8.5bn SSD tester contract through December

Neosem extended its sixth-generation SSD tester and module contract to December 31, 2026 from August 31. The ₩8.53bn value equals 13.35% of FY2025 consolidated revenue. Its subsidiary Neosem Technology is the customer. Payment falls due within 60 days after delivery, without an advance. The companies agreed to revise delivery timing; the filing does not specify the underlying cause.

Contract08/28/26kstock explained
₩8.5bn≈ $6m
DART

Half-Year Report

Periodic08/14/26title translated
DART

Single Supply Contract Signed

Contract07/08/26title translated
DART

Single Supply Contract Signed

Contract05/28/26title translated
DART

Single Supply Contract Signed

Contract05/27/26title translated
DART

Quarterly Report

Periodic05/15/26title translated
DART

Single Supply Contract Signed

Contract05/08/26title translated
DART

Single Supply Contract Signed

Contract05/06/26title translated
1 routine filings (insider holdings reports, IR schedules)DART

5% Ownership Report — Large Holdings

Ownership08/31/26title translated
10 filings on file, grouped where one event produced many. Source: DART, operated by Korea's Financial Supervisory Service.

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What a US investor should know

  • Trading hours09:00–15:30 KST — 20:00–02:30 US Eastern the night before.
  • Daily limitKorean stocks can move at most ±30% in a session before trading halts.
  • Getting exposureKRX shares are not directly tradable in most US brokerage accounts. The usual routes are Korea ETFs or an international account.
  • ReportingKorean issuers file to DART, not the SEC. Half-year and quarterly reports land about 45 days after period end.