SAMJIN Co., Ltd. — 4 prefixes (MA-L)

SAMJIN Co., Ltd. holds 4 MA-L OUI blocks in the IEEE registry, all attributed to a single Anyang-si, Gyeonggi-do, South Korea address family (three blocks list 199-6, Anyang 7-dong, Manan-gu; one lists 81, Anyangcheonseo-ro, Manan-gu — plausibly an office-address update within the same district, not a name-only coincidence, since both are Manan-gu, Anyang-si). A near-identical 5th MA-L block (00:09:DE, registered to "Samjin Information & Communications Co., Ltd." at a different KyongGi address) shares only the word "Samjin" and slugs to a distinct vendor bucket under this pipeline's slug algorithm — business-suffix words like "Co" and "Ltd" are stripped from vendor names, but "Information" and "Communications" are not — so it is a separate registrant and is deliberately excluded from this entry. Third-party sources report SAMJIN Co., Ltd. as a Korean firm publicly listed on the KRX (ticker 032750) since 1975, a Samsung first-tier strategic supplier across the TV/Display, Mobile, Home Appliance, and Semiconductor divisions, and a member of the CSA-IOT (Matter/Zigbee) alliance, with a product line spanning TV remote controls, speaker/cabinet hardware, and smart-home hubs and sensors. Four separate MA-L assignments plus an identifiable, actively-operating public company clears the bar for company substance well beyond a bare single-OUI shell registration.

IEEE assignment

4 MA-L prefixes → "SAMJIN Co., Ltd." (3 blocks) / "SAMJIN Co.ltd" (1 block, punctuation variant) [Confirmed] — the IEEE MA-L registry

Registry / block size

MA-L (24-bit OUI) only; no MA-M (the IEEE MA-M registry) or MA-S (the IEEE MA-S registry) blocks found under this organization name [Confirmed] — the IEEE MA-M registry, the IEEE MA-S registry

Registered addresses

two distinct street addresses in Manan-gu, Anyang-si, Gyeonggi-do, KR — 199-6, Anyang 7-dong (KR 430-817; 3 blocks: 68:3A:48, A4:57:A0, 28:6D:97) and 81, Anyangcheonseo-ro (KR 14087; 1 block: 08:7D:60) [Confirmed] — the IEEE MA-L registry

Excluded near-match

00:09:DE is registered to "Samjin Information & Communications Co., Ltd." at a different address (MajangMyun DukPyungRi 235-2, Ichon, KR 467-812) — a distinct registrant that slugs to a separate vendor bucket under this pipeline's name-normalization rules, not consolidated here

[Confirmed] — the IEEE MA-L registry

Company status

active, publicly traded on the KRX (ticker 032750) since 1975 [Likely] — https://www.emis.com/php/company-profile/KR/Samjin_CoLtd__Anyang__en_1651312.html, https://www.bloomberg.com/profile/company/032750:KS

Website

http://www.samjin.com [Likely] — https://csa-iot.org/member/samjin-co-ltd/

Device types / role

Samsung first-tier strategic supplier (TV/Display, Mobile, Home Appliance, Semiconductor divisions); TV remote controls, speaker/cabinet hardware, smart-home hubs and sensors; CSA-IOT (Matter/Zigbee) alliance member [Likely] — https://csa-iot.org/member/samjin-co-ltd/, https://www.dnb.com/business-directory/company-profiles.samjin_co_ltd.28e1d3058810aa2867455533f1daefd4.html

Company substance verdict

SUBSTANTIVE — 4 MA-L assignments plus a publicly-traded parent company with an identifiable Samsung-supplier product line, well past a bare single-OUI shell [Likely] — https://www.bloomberg.com/profile/company/032750:KS, https://csa-iot.org/member/samjin-co-ltd/

Security context

Unknown — no CVE or advisory found naming SAMJIN Co., Ltd. specifically in this pass [Unknown] — https://www.cve.org/

Allocated date

Unknown/null — IEEE's the IEEE MA-L registry publishes only Registry, Assignment, Organization Name, Organization Address; no assignment date exists for any of these 4 blocks; third-party aggregator "registered" dates (e.g. macverify.com) are database artifacts, not IEEE facts

[Confirmed] — the IEEE MA-L registry

Related vendors

None identified as a corporate parent/subsidiary relationship; the Samsung connection reported by third-party sources is a supplier/customer relationship, not ownership [Likely] — https://csa-iot.org/member/samjin-co-ltd/

Analyst note

The word "Samjin" also appears on a 5th, address-distinct MA-L block (00:09:DE) that is NOT part of this entry; don't conflate the two registrants when doing MAC-vendor lookups on Korean "Samjin"-named hardware.