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Supplier / Krathum Baen · TH

Circuit Industries

CIRCUIT INDUSTRIES CO., LTD.

Circuit Industries Co., Ltd. makes HDI, rigid and metal core PCBs up to 10 layers in Samut Sakhon, Thailand. Part of Circuit Industries Co., Ltd. (independent; no parent company identified). Certificates for this plant: UL, ISO 9001, ISO 14001, ISO 45001, IATF 16949, TLS 8001. Surface finishes: OSP, lead-free HASL, ENIG. Thai name: บริษัท เซอร์คิต อินดัสตรีส์ จำกัด.

PCB illustration · company photos not supplied

Manufacturing site
Krathum Baen
Board type
rigid / HDI / metal core
Profile ownership
Not confirmed
Research reviewed
2026-09-24
01 /

Know the company.

Circuit Industries makes printed circuit boards at Krathum Baen, Samut Sakhon. The plant is in production.

Manufacturing site

End markets: automotive · industrial

Who owns this plant

Thai legal entity
CIRCUIT INDUSTRIES CO., LTD. · บริษัท เซอร์คิต อินดัสตรีส์ จำกัด
Registration number
0745533000511 · registered 1990-05-24
Registered capital
THB 65,000,000
Owned by
Thai shareholders (not named; the company describes itself as 100% Thai-owned) 100%, 2026[3]
Parent group
Circuit Industries Co., Ltd. (independent; no parent company identified) (บริษัท เซอร์คิต อินดัสตรีส์ จำกัด) · Thailand · unlisted (private limited company)

Company facts from filings, the Thai company register, BOI releases and company announcements. Private individuals are not named.

  1. CIRCUIT INDUSTRIES CO., LTD. (DBD data). Creden Data (2026)
  2. CIRCUIT INDUSTRIES CO., LTD., registered capital. Creden Data (2026)
  3. About CIPCB - 100% Thai-Owned PCB Manufacturer Since 1990. Circuit Industries Co., Ltd. (2026)
  4. About CIPCB (capital). Circuit Industries Co., Ltd. (2026)
02 /

Find the technical fit.

Reported site status: operating (since 1990)

Published for this plant: 9 / 20

Construction

Board types
rigid · HDI · metal core
Published for this plant
Maximum layers
Up to 10
Published for this plant
HDI (microvias)
Yes
Published for this plant
Largest board or panel
Ask the plant
Not published: ask
Board thickness range and tolerance
Ask the plant
Not published: ask
Copper weight, outer and inner
Ask the plant
Not published: ask

Fine features

Minimum line / space
100 µm (3.9 mil) · 0.1 mm (4 mil) small volume; 0.125 mm (5 mil) mass volume, inner and outer
Published for this plant
Smallest finished hole
0.15 mm
Published for this plant
Aspect ratio (board thickness to hole)
Ask the plant
Not published: ask
Minimum annular ring
Ask the plant
Not published: ask
Impedance control and tolerance
Ask the plant
Not published: ask

Materials and finish

Laminates
FR-1 · CEM-1 · CEM-3 · FR-4 · metal core · Rogers · PTFE
Published for this plant
Surface finishes
OSP · lead-free HASL · ENIG
Published for this plant
Solder mask and legend colours
Ask the plant
Not published: ask

Quality and certificates

Certificates
UL · ISO 9001 · ISO 14001 · ISO 45001 · IATF 16949 · TLS 8001
Published for this plant
Electrical test (flying probe or fixture) and AOI
Ask the plant
Not published: ask
IPC-6012 class built to
Ask the plant
Not published: ask

Orders

Order sizes taken
Prototypes · Small batches · Volume
Published for this plant
Assembly at this site
Ask the plant
Not published: ask
Lead time, prototype and production
Ask the plant
Not published: ask

Special processes on record: HDI blind/buried vias up to 6 layers; high-frequency boards on Rogers RO4533 and Taconic TLX-7 ('Teflon'); aluminium 5052 base; CEM-1, CEM-3, FR-1; outer copper up to 3 oz; aspect ratio 10:1 small volume, 8:1 mass volume; 0.2 mm minimum drill in mass production

Every plant gets the same rows. A value is shown only with its source: the company's own confirmation, research published for this Thai plant, or figures the parent group publishes for its other plants.

03 /

Trust you can inspect.

The same evidence standard applies to buyers and suppliers. A profile claim does not certify capability or payment reliability.

Company identity
Not confirmed
Representative authority
No contact person published yet
Supporting evidence
Research sources below
Transaction history
No transaction assurance is implied by this profile.

Recorded certifications

UL · ISO 9001 · ISO 14001 · ISO 45001 · IATF 16949 · TLS 8001

Research mentions only. Ask for the current certificate, issuer and site scope.

01 / www.cipcb.com ↗02 / www.cipcb.com ↗03 / productiq.ulprospector.com ↗04 / thailandelectronicscircuitasia.com ↗05 / www.openstreetmap.org ↗