MPBxChangePCB · Thailand

Research · Investment

Who owns Thailand's PCB plants: parents, listings and joint ventures

An ownership map of 39 PCB plants in Thailand from stock exchange filings and the Thai company register: the listed groups behind them, the joint ventures and the plans they announced.

MPBx Research Team

MPBxChange research · Published 25 September 2026 · Updated 5 November 2026 · 15 min read · 96 sources

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Who owns Thailand's PCB plants: parents, listings and joint ventures
Illustration: MPBxChange

MPBxChange RESEARCH

Ownership of Thai PCB plants

Select a plant to view its shareholders and parent group.

39Thai plants
24 / 39

Peng Shen Technology (Thailand) · Zhen Ding Tech

Plant profile ↗

Zhen Ding Technology Holding LimitedGroup relationship →Avary Holding (Shenzhen) Co., Ltd.[23]

Avary Holding (Shenzhen) Co., Ltd.72.35% →Peng Shen Technology (Thailand)[97]

AROC17.65% →Peng Shen Technology (Thailand)[23]

Saha Group10% →Peng Shen Technology (Thailand)[23]

Ownership details and sources

Avary Holding (Shenzhen) Co., Ltd. 72.35%; AROC (company named in Avary's filing; not a related party of Avary) 17.65%; Saha Group 10%

Zhen Ding Technology Holding Limited · TWSE 4958; direct parent Avary Holding (Shenzhen) Co., Ltd. is listed on SZSE 002938

[97] [23]

Reported shareholdingGroup relationship

Solid lines: reported shareholdings. Dashed lines: group relationships. Percentages are the stake held in the company at the end of each line. Full details are in the table below.

This note maps the ownership of the 39 PCB plants in the MPBxChange register: the company that holds each Thai entity, the group above it, the exchange on which that group is listed, and the joint-venture partners. The sources are the parents' stock exchange filings and the Thai company register. Each row links to the plant's page, which carries the full source list.

Key points

  • 33 of the 39 plants belong to listed groups; 6 belong to unlisted or privately held groups.
  • By parent listing: Shenzhen 14, Taiwan 9, Shanghai 7, Tokyo 3, Hong Kong 3 and Thailand 1 (a plant whose group is dual-listed, or whose intermediate parent is listed on a second exchange, is counted under both).
  • On MPBxChange's count from the cited filings, 17 plants are held through an intermediate company in Singapore, Hong Kong or another third jurisdiction.
  • Three plants are joint ventures between separate shareholder groups: Peng Shen Technology, Sundell Technology and Advanced Interconnection Technology.
  • The owners have announced new capacity for 2026 to 2028, covering AI server boards, automotive, communications and flexible boards.

The ownership map

PlantHeld byParent groupParent listing
AKM Meadville Electronics (Thailand)AKM Meadville Electronics (Xiamen) Co., Ltd. (安捷利美维电子（厦门）有限责任公司)[1]AKM Meadville Electronics (Xiamen) Co., Ltd.unlisted
Advanced Interconnection Technology (AITC) · SVI and CCTCSVI Public Company Limited 75%[89]; China Circuit Technology (Shantou) Corporation (CCTC, 汕头超声印制板公司) 25%[89]SVI Public Company Limitedunlisted since 22 May 2026 (voluntary delisting from SET)[88]
Allfavor Circuit (Thailand)Jiangsu Allfavor Intelligent Circuits Technology Co., Ltd. (江苏本川智能电路科技股份有限公司) 99%[3]; 本川科技（香港）有限公司 (wholly owned by the parent) 1%[3]Jiangsu Allfavor Intelligent Circuits Technology Co., Ltd.SZSE 300964 (ChiNext)
Aohong Electronics (Thailand)ELITE PROSPECT SINGAPORE PTE. LTD. (新加坡昇耀) 99.98%[4]; 昇耀國際貿易有限公司 (ELITE PROSPECT TRADING LIMITED, Hong Kong) 0.02%[4]Changzhou Aohong Electronics Co., Ltd.SSE 605058
Apcb Electronics (Thailand) · Victory Giant TechnologyVictory Giant Technology (HuiZhou) Co., Ltd. (胜宏科技) 100%[5]Victory Giant Technology (HuiZhou) Co., Ltd.SZSE 300476; HKEX 2476 (H shares listed 21 April 2026)[5]
Apex Circuit (Thailand)Apex International Co., Ltd. (泰鼎國際股份有限公司, Cayman Islands) 99.69%[6]Apex International Co., Ltd.TWSE 4927 (泰鼎-KY)
Autech (Thailand)not publishednot publishednot published
CMK Corporation (Thailand)CMK Corporation (日本シイエムケイ株式会社) 100%[7]CMK CorporationTSE 6958
Circuit IndustriesThai shareholders (not named; the company describes itself as 100% Thai-owned) 100%[8]Circuit Industries Co., Ltd. (independent; no parent company identified)unlisted (private limited company)
Compeq (Thailand)Compeq Manufacturing Co., Ltd. (華通電腦股份有限公司) 100%[9]Compeq Manufacturing Co., Ltd.TWSE 2313
Draco PCB (Chin Poon Electronics (Thailand))Chin Poon Industrial Co., Ltd. (敬鵬工業股份有限公司) 99.89%[10]; other shareholders 0.11%[10]Chin Poon Industrial Co., Ltd.TWSE 2355 (敬鵬)
Dynamic Technology Manufacturing (Thailand) · Dynamic ElectronicsDynamic Electronics Co., Ltd. (超颖电子电路股份有限公司) 100%[11]Dynamic Holding (定穎投控)TWSE 3715; intermediate parent Dynamic Electronics Co., Ltd. is listed on SSE 603175
Elec & Eltek (Thailand)Elec & Eltek group (Elec & Eltek International Company Limited group)[12]Kingboard Holdings Limited[90]HKEX 0148
First Quality Circuit (Sihui Fuji Electronics)Sihui Fuji Electronics Technology Co., Ltd. (四会富仕电子科技股份有限公司) 56.73%[13]; ELECBRIGHT SOLUTIONS PTE. LTD (Singapore, wholly owned by the parent) 42.7%[13]; 四会富仕电子（香港）有限公司 (Hong Kong subsidiary of the parent) 0.57%[13]Sihui Fuji Electronics Technology Co., Ltd.SZSE 300852
Fujikura Electronics (Thailand)Fujikura Printed Circuits Ltd. (FPCL) 100%[14]; Fujikura Ltd. 100%[15]Fujikura Ltd.TSE Prime 5803
Gold Circuit Electronics (Thailand)Gold Circuit Electronics Ltd. 59.18%[16]; Goldex Holding Limited (Samoa; wholly owned by Gold Circuit Electronics Ltd.) 40.82%[16]Gold Circuit Electronics Ltd.TWSE 2368
Guanghe Technology (Thailand) · DeltonDelton Technology (Guangzhou) Inc. 100%[17]Delton Technology (Guangzhou) Inc.SZSE 001389; HKEX 01989
IFOUND PCB (Thailand)Founder Technology Group Co., Ltd. 100%[18]Founder Technology Group Co., Ltd.SSE 600601
KCE ElectronicsListed itself on the Stock Exchange of Thailand (KCE)KCE Electronics Public Company LimitedSET KCE
Kinwong Electronic (Thailand)Shenzhen Kinwong Electronic Co., Ltd. 100%[19]Shenzhen Kinwong Electronic Co., Ltd.SSE 603228
Mektec Manufacturing (Thailand)MEKTEC CORPORATION (formerly Nippon Mektron, Ltd.[92]), NOK group[20]NOK CORPORATIONTSE 7240
Multi-Fineline Electronics (Thailand) · MFLEXSuzhou Dongshan Precision Manufacturing Co., Ltd. (DSBJ)[21]Suzhou Dongshan Precision Manufacturing Co., Ltd. (DSBJ)SZSE 002384
Olympic Circuit (Thailand)OLYMPIC CIRCUIT PTE. LIMITED (Singapore subsidiary of Olympic Circuit Technology Co., Ltd.) 99.95%[22]; 世运线路版有限公司 (Olympic Country Company Limited, Hong Kong subsidiary of Olympic Circuit Technology Co., Ltd.) 0.05%[22]Olympic Circuit Technology Co., Ltd.SSE 603920
Peng Shen Technology (Thailand) · Zhen Ding TechAvary Holding (Shenzhen) Co., Ltd. 72.35%[97]; AROC (company named in Avary's filing; not a related party of Avary) 17.65%[23]; Saha Group 10%[23]Zhen Ding Technology Holding LimitedTWSE 4958; direct parent Avary Holding (Shenzhen) Co., Ltd. is listed on SZSE 002938[23]
QuanTech Circuit (Thailand)Huizhou Zhongjing Electronics Technology Co., Ltd. (惠州中京电子科技股份有限公司, CEE) 99.5%[24]; Huizhou Zhongjing Electronics Technology Co., Ltd. through wholly owned subsidiaries (惠州中京电子科技有限公司 and 香港中京电子科技有限公司, 0.25% each per the June 2023 filing) 0.5%[24]Huizhou Zhongjing Electronics Technology Co., Ltd. (CEE)SZSE 002579
STARTEAM GLOBAL (Prachinburi STARTEAM, PST)STARTEAM Global Holding Ltd. (group parent company)[25]STARTEAM Global Holding Ltd.not published
SYKC Circuit (Thailand)Shanghai YKC Corporation (上海山崎电路板有限公司)[26]Shanghai YKC Corporationnot published
Shengyi Electronics (Thailand)生益电子（国际）有限公司 (Shengyi Electronics (International), wholly owned subsidiary of Shengyi Electronics Co., Ltd.) 70%[27]; 生益电子（海外）有限公司 (Shengyi Electronics (Overseas), wholly owned grandchild company of Shengyi Electronics Co., Ltd.) 30%[27]Shengyi Technology Co., Ltd.SSE 600183
Shennan Circuits (Thailand)Shennan Circuits Co., Ltd. 100%[28]Shennan Circuits Co., Ltd.SZSE 002916
Shye FengApex International Co., Ltd., indirectly 99.99%[6]Apex International Co., Ltd.TWSE 4927
Sundell Technology · Aoshikang (ASK PCB)Aoshikang Technology Co., Ltd. (奥士康科技股份有限公司) 85.1%[29]; 名幸电子香港有限公司 (Hong Kong subsidiary of Meiko Electronics Co., Ltd.) 14.9%[30]Aoshikang Technology Co., Ltd.SZSE 002913
Suntak Technology (Thailand)Suntak Technology Co., Ltd. (崇达技术股份有限公司) 100%[31]Suntak Technology Co., Ltd.SZSE 002815
Taihua Electronics Technology · EllingtonGuangdong Ellington Electronics Technology Co., Ltd. (广东依顿电子科技股份有限公司) 100%[32]Guangdong Ellington Electronics Technology Co., Ltd.SSE 603328
Thai Kun Circuit (ManKun Technology Thailand)Ji'an Mankun Technology Co., Ltd. (吉安满坤科技股份有限公司) 99.99%[34]Ji'an Mankun Technology Co., Ltd.SZSE 301132
Unimicron (Thailand)Unimicron Technology Corporation (欣興電子股份有限公司) 100%[35]Unimicron Technology CorporationTWSE 3037
Unitech PCB (Thailand)Unitech PCB (燿華電子) 100%[36]Unitech PCB (燿華電子)TWSE 2367
WTT Electronics (Zhongfu Circuit · JOVE PCB)Shenzhen Jove Enterprise Limited (深圳中富电路股份有限公司) 100%[37]Shenzhen Jove Enterprise LimitedSZSE ChiNext 300814
WUS Printed Circuit (Thailand)WUS Printed Circuit (Kunshan) Co., Ltd. (沪士电子股份有限公司) 99%[38]WUS Printed Circuit (Kunshan) Co., Ltd.SZSE 002463
Well Tek Electronics · WelgaoJiangxi Welgao Electronics Co., Ltd. (江西威尔高电子股份有限公司) 100%[39]Jiangxi Welgao Electronics Co., Ltd.SZSE ChiNext 301251

Source: parent company filings and the Thai company register, as cited. Shares are direct or indirect (look-through) holdings as stated in the filing; the plant pages show the full chain.

Where the parents are listed

ExchangePlantsPlants in the register
Shenzhen Stock Exchange14Allfavor Circuit (Thailand), Apcb Electronics (Thailand) · Victory Giant Technology, First Quality Circuit (Sihui Fuji Electronics), Guanghe Technology (Thailand) · Delton, Multi-Fineline Electronics (Thailand) · MFLEX, Peng Shen Technology (Thailand) · Zhen Ding Tech, QuanTech Circuit (Thailand), Shennan Circuits (Thailand), Sundell Technology · Aoshikang (ASK PCB), Suntak Technology (Thailand), Thai Kun Circuit (ManKun Technology Thailand), WTT Electronics (Zhongfu Circuit · JOVE PCB), WUS Printed Circuit (Thailand), Well Tek Electronics · Welgao
Taiwan Stock Exchange9Apex Circuit (Thailand), Compeq (Thailand), Draco PCB (Chin Poon Electronics (Thailand)), Dynamic Technology Manufacturing (Thailand) · Dynamic Electronics, Gold Circuit Electronics (Thailand), Peng Shen Technology (Thailand) · Zhen Ding Tech, Shye Feng, Unimicron (Thailand), Unitech PCB (Thailand)
Shanghai Stock Exchange7Aohong Electronics (Thailand), Dynamic Technology Manufacturing (Thailand) · Dynamic Electronics, IFOUND PCB (Thailand), Kinwong Electronic (Thailand), Olympic Circuit (Thailand), Shengyi Electronics (Thailand), Taihua Electronics Technology · Ellington
Tokyo Stock Exchange3CMK Corporation (Thailand), Fujikura Electronics (Thailand), Mektec Manufacturing (Thailand)
Hong Kong Stock Exchange3Apcb Electronics (Thailand) · Victory Giant Technology, Elec & Eltek (Thailand), Guanghe Technology (Thailand) · Delton
Stock Exchange of Thailand1KCE Electronics
Unlisted or private6AKM Meadville Electronics (Thailand), Advanced Interconnection Technology (AITC) · SVI and CCTC, Autech (Thailand), Circuit Industries, STARTEAM GLOBAL (Prachinburi STARTEAM, PST), SYKC Circuit (Thailand)

Dual-listed groups, such as Victory Giant (Shenzhen and Hong Kong), appear under both exchanges. So do plants whose intermediate parent is listed on a second exchange: Dynamic Technology Manufacturing (Taiwan and Shanghai) and Peng Shen Technology (Taiwan and Shenzhen).

Most of the capital behind Thailand's new plants answers to shareholders in Shenzhen, Shanghai and Taipei. Listed parents publish audited accounts, investment plans and progress on their Thai projects every half year, which allows a supplier's financial position to be assessed from public filings before an order is placed.

Holding structures

Many listed parents hold their Thai plant through an intermediate company: on MPBxChange's count from the filings cited on each plant page, 17 of the 39 plants have a holding company in Singapore, Hong Kong or another third jurisdiction in the chain. Examples from the filings:

  • Aohong Electronics (Thailand): ELITE PROSPECT SINGAPORE PTE. LTD. (新加坡昇耀) 99.98%[4]; 昇耀國際貿易有限公司 (ELITE PROSPECT TRADING LIMITED, Hong Kong) 0.02%[4]; the filing describes both holders as wholly owned subsidiaries of Changzhou Aohong Electronics[4]
  • Dynamic Technology Manufacturing (Thailand) · Dynamic Electronics: Dynamic Electronics Co., Ltd. (超颖电子电路股份有限公司) 100% (Dynamic Electronics Overseas Investment Holding Pte. Ltd. (Singapore, wholly owned))[11]; 定穎投資控股股份有限公司 (Dynamic Holding, TWSE 3715) (Dynamic Electronics Holding Pte. Ltd., which directly holds 86.10% of Dynamic Electronics Co., Ltd.)[11]
  • First Quality Circuit (Sihui Fuji Electronics): Sihui Fuji Electronics Technology Co., Ltd. (四会富仕电子科技股份有限公司) 56.73%[13]; ELECBRIGHT SOLUTIONS PTE. LTD (Singapore, wholly owned by the parent) 42.7%[13]; 四会富仕电子（香港）有限公司 (Hong Kong subsidiary of the parent) 0.57%[13]
  • Sundell Technology · Aoshikang (ASK PCB): Aoshikang Technology Co., Ltd. (奥士康科技股份有限公司) 85.1% (JIARUIAN PTE. LTD. (Singapore), which controls Sundell)[29]; 名幸电子香港有限公司 (Hong Kong subsidiary of Meiko Electronics Co., Ltd.) 14.9% (JIARUIAN PTE. LTD. (Singapore))[30]

Compeq has a second Thai company, COMPEQ Technology (Thailand) Co., Ltd., held 100% by its subsidiary 華通精密線路板(惠州)股份有限公司[96]. The register lists one Compeq plant, so the second entity is not counted separately here.

Joint ventures

PlantShareholders
Peng Shen Technology (Thailand) · Zhen Ding TechAvary Holding (Shenzhen) Co., Ltd. 72.35%[97]; AROC (company named in Avary's filing; not a related party of Avary) 17.65%[23]; Saha Group 10%[23]
Sundell Technology · Aoshikang (ASK PCB)Aoshikang Technology Co., Ltd. (奥士康科技股份有限公司) 85.1%[29]; 名幸电子香港有限公司 (Hong Kong subsidiary of Meiko Electronics Co., Ltd.) 14.9%[30]
Advanced Interconnection Technology (AITC) · SVI and CCTCSVI Public Company Limited 75%[89]; China Circuit Technology (Shantou) Corporation (CCTC, 汕头超声印制板公司) 25%[89]

Peng Shen Technology is Zhen Ding Tech Group's Thai plant, held through Avary Holding, with Saha Group as Thai partner. Sundell Technology combines Aoshikang with Japan's Meiko Electronics, and Advanced Interconnection Technology combines Thailand's SVI with China Circuit Technology of Shantou.

Largest Thai entities by registered capital

Registered capital is the amount shareholders have committed to the Thai company, as recorded in the company register. Total investment is higher where parents also fund plants with loans, as several do.

Thai companyRegistered capital, THB mRegistered
PENG SHEN TECHNOLOGY (THAILAND) CO., LTD.[40]11,3302023-09-15[40]
UNIMICRON (THAILAND) CO., LTD.[41]10,3602023-03-08[41]
DYNAMIC TECHNOLOGY MANUFACTURING (THAILAND) CO., LTD.[42]9,1002023-04-25[42]
CMK CORPORATION (THAILAND) COMPANY LIMITED[43]9,0072006-04-18[43]
FUJIKURA ELECTRONICS(THAILAND) COMPANY LIMITED[44]8,4842010-04-01[44]
VICTORY GIANT TECHNOLOGY (THAILAND) CO., LTD. (formerly APCB Electronics (Thailand) Co., Ltd.)[46]7,4221990-07-25[46]
WUS PRINTED CIRCUIT (THAILAND) CO., LTD.[45]6,4902022-10-04[45]
GOLD CIRCUIT ELECTRONICS (THAILAND) CO., LTD.[47]5,0002023-04-11[47]
MULTI-FINELINE ELECTRONICS (THAILAND) CO., LTD.[48]5,0002023-06-30[48]
SUNDELL TECHNOLOGY CO., LTD.[49]4,7002023-02-14[49]

Source: Thai company register (Department of Business Development), via a registry data service, as of 21 October 2026. Fujikura Electronics (Thailand) gives its capital as THB 11,552 million on its own company profile[14], and Fujikura Ltd.'s annual securities report shows the same figure[93]. The register figure is used here; on the company's figure the plant would rank first.

Parent groups by revenue

Parent groupListingRevenue, latest fiscal year
Aoshikang Technology Co., Ltd.SZSE 002913CNY 5.5 billion (2025)[30]
Apex International Co., Ltd.TWSE 4927 (泰鼎-KY)TWD 11.6 billion (2025)[6]
Changzhou Aohong Electronics Co., Ltd.SSE 605058CNY 1.3 billion (2025)[50]
Chin Poon Industrial Co., Ltd.TWSE 2355 (敬鵬)TWD 15.8 billion (2025)[51]
CMK CorporationTSE 6958JPY 100.2 billion (2026)[52]
Compeq Manufacturing Co., Ltd.TWSE 2313TWD 76.0 billion (2025)[9]
Delton Technology (Guangzhou) Inc.SZSE 001389; HKEX 01989CNY 5.5 billion (2025)[53]
Dynamic Holding (定穎投控)TWSE 3715; intermediate parent Dynamic Electronics Co., Ltd. is listed on SSE 603175TWD 19.5 billion (2025)[54]
Founder Technology Group Co., Ltd.SSE 600601CNY 4.9 billion (2025)[55]
Fujikura Ltd.TSE Prime 5803JPY 1,182.4 billion (2026)[56]
Gold Circuit Electronics Ltd.TWSE 2368TWD 60.0 billion (2025)[16]
Guangdong Ellington Electronics Technology Co., Ltd.SSE 603328CNY 4.0 billion (2025)[33]
Huizhou Zhongjing Electronics Technology Co., Ltd. (CEE)SZSE 002579CNY 3.1 billion (2025)[57]
Ji'an Mankun Technology Co., Ltd.SZSE 301132CNY 1.6 billion (2025)[34]
Jiangsu Allfavor Intelligent Circuits Technology Co., Ltd.SZSE 300964 (ChiNext)CNY 0.9 billion (2025)[58]
Jiangxi Welgao Electronics Co., Ltd.SZSE ChiNext 301251CNY 1.5 billion (2025)[59]
KCE Electronics Public Company LimitedSET KCETHB 13.3 billion (2025)[60]
Kingboard Holdings LimitedHKEX 0148HKD 45.4 billion (2025)[61]
NOK CORPORATIONTSE 7240JPY 738.4 billion (2026)[91]
Olympic Circuit Technology Co., Ltd.SSE 603920CNY 5.6 billion (2025)[62]
Shengyi Technology Co., Ltd.SSE 600183CNY 28.4 billion (2025)[63]
Shennan Circuits Co., Ltd.SZSE 002916CNY 23.6 billion (2025)[64]
Shenzhen Jove Enterprise LimitedSZSE ChiNext 300814CNY 1.9 billion (2025)[65]
Shenzhen Kinwong Electronic Co., Ltd.SSE 603228CNY 15.3 billion (2025)[66]
Sihui Fuji Electronics Technology Co., Ltd.SZSE 300852CNY 1.9 billion (2025)[67]
Suntak Technology Co., Ltd.SZSE 002815CNY 7.5 billion (2025)[68]
Suzhou Dongshan Precision Manufacturing Co., Ltd. (DSBJ)SZSE 002384CNY 40.1 billion (2025)[69]
SVI Public Company Limitedunlisted since 22 May 2026 (delisted from SET; last trading day 21 May 2026)[88]THB 18.6 billion (2025)[76]
Unimicron Technology CorporationTWSE 3037TWD 131.2 billion (2025)[71]
Unitech PCB (燿華電子)TWSE 2367TWD 16.2 billion (2025)[72]
Victory Giant Technology (HuiZhou) Co., Ltd.SZSE 300476; HKEX 2476 (H shares listed 21 April 2026)[5]CNY 19.3 billion (2025)[73]
WUS Printed Circuit (Kunshan) Co., Ltd.SZSE 002463CNY 18.9 billion (2025)[38]
Zhen Ding Technology Holding LimitedTWSE 4958TWD 182.5 billion (2025)[74]

Source: group annual reports or results, as cited. Revenue is group-wide, in each group's reporting currency; most is earned outside Thailand. For Japanese groups the year shown is the fiscal year ended March 2026.

Thai-listed companies in the supply chain

Several companies in the chain are listed in Bangkok: board makers, assemblers, power-electronics suppliers, joint-venture partners and the industrial estate operators that host the plants.

CompanyRole in the PCB chainRevenue 2025, THB mMarket value, THB m
KCE Electronics PCL (KCE)Bare-board PCB maker13,339[75]79,791 (2026-09-23)[75]
SVI PCL (SVI)Electronics manufacturing; joint-venture partner in Advanced Interconnection Technology18,579[76]not listed since 22 May 2026
Hana Microelectronics PCL (HANA)Electronics and board assembly21,231[77]45,154 (2026-09-23)[77]
Team Precision PCL (TEAM)Board assembly2,853[78]3,791 (2026-09-23)[78]
Cal-Comp Electronics (Thailand) PCL (CCET)Electronics manufacturing139,241[79]95,618 (2026-09-23)[79]
Delta Electronics (Thailand) PCL (DELTA)Power electronics and data-centre equipment200,819[80]3,193,297 (2026-09-23)[80]
Stars Microelectronics (Thailand) PCL (SMT)Electronics assembly2,172[81]5,324 (2026-09-23)[81]
Saha Pathana Inter-Holding PCL (SPI)Holding company of Saha Group; Avary's filing names "SAHA 集团" (Saha Group), without naming the entity, as the 10% partner in Peng Shen Technology[23]4,466[82]43,753 (2026-09-23)[82]
Rojana Industrial Park PCL (ROJNA)Industrial estate operator15,258[83]11,618 (2026-09-23)[83]
Amata Corporation PCL (AMATA)Industrial estate operator14,524[84]38,525 (2026-09-23)[84]
WHA Corporation PCL (WHA)Industrial estate operator16,432[85]72,044 (2026-09-23)[85]

Source: company annual reports (Form 56-1 One Report) and the Stock Exchange of Thailand, as cited. SVI delisted voluntarily on 22 May 2026, and its shares last traded on 21 May 2026.[88]

Announced expansion plans

Selected plans from the parents' filings, as stated by each company:

Outlook

Because most plants have a listed parent that reports on its Thai project, a plant's ramp-up and the investment behind it can be tracked in public filings ahead of a quotation, with line capability and certifications confirmed at the plant. The plans announced for 2026 to 2028 imply demand for buildings, equipment, chemicals, laminate, maintenance and skilled staff, which Thai suppliers and service firms can address plant by plant. Thai companies also have established routes into the cluster: Saha Group holds a stake in Peng Shen alongside Zhen Ding, and SVI holds the majority of Advanced Interconnection Technology with a Chinese partner.

Data and method

Data as of 24 and 25 September 2026. Sources are the parents' filings on the Shenzhen, Shanghai, Taiwan, Tokyo, Hong Kong and Thai exchanges, the Thai company register (via a registry data service), Stock Exchange of Thailand notices and company announcements; registered capital was rechecked on 21 October 2026. Where a shareholder is an individual or family, the percentage is shown without a name. Coverage is the MPBxChange register of bare-board PCB plants; the other Thai-listed companies (assemblers, power-electronics makers, a holding company and industrial estate operators) appear in the Bangkok section only.

Sources

  1. company AKM Meadville Electronics (Xiamen) Co., Ltd. (2026). About AKM Meadville (manufacturing sites). AKM Meadville Electronics (Xiamen) Co., Ltd.. back to text
  2. press InfoQuest (2025). SVI ร่วมทุนยักษ์ใหญ่จีนผลิตแผงวงจรพิมพ์ HDI PCB ในไทย มูลค่าเกือบ 4 พันลบ.. InfoQuest. back to text
  3. official 江苏本川智能电路科技股份有限公司 (cninfo) (2025). 本川智能：关于向泰国子公司增资及完成注册资本变更登记的公告 (2025-001). 江苏本川智能电路科技股份有限公司 (cninfo). back to text
  4. official 常州澳弘电子股份有限公司 (cninfo) (2025). 澳弘电子关于对泰国子公司增资暨完成注册资本变更登记的公告 (2025-001). 常州澳弘电子股份有限公司 (cninfo). back to text
  5. official 胜宏科技（惠州）股份有限公司 (cninfo / HKEX overseas regulatory announcement) (2026). 胜宏科技（惠州）股份有限公司 2026年半年度报告 (definitions). 胜宏科技（惠州）股份有限公司 (cninfo / HKEX overseas regulatory announcement). back to text
  6. official Apex International Co., Ltd. (2026). Apex International Co., Ltd. 2025 Annual Report (enterprises directly or indirectly controlled). Apex International Co., Ltd.. back to text
  7. data EDINET DB (2026). 日本シイエムケイ株式会社 有価証券報告書 (関係会社の状況), EDINET text mirror. EDINET DB. back to text
  8. company Circuit Industries Co., Ltd. (2026). About CIPCB - 100% Thai-Owned PCB Manufacturer Since 1990. Circuit Industries Co., Ltd.. back to text
  9. official 華通電腦股份有限公司 (TWSE filing) (2026). 華通電腦股份有限公司 114年度年報 (關係企業組織圖). 華通電腦股份有限公司 (TWSE filing). back to text
  10. company Chin Poon Electronics (Thailand) PCL (2026). รายงานประจำปี 2568 / Annual Report 2025 (major shareholders). Chin Poon Electronics (Thailand) PCL. back to text
  11. official 超颖电子电路股份有限公司 (cninfo) (2026). 超颖电子电路股份有限公司2025年年度报告 (definitions). 超颖电子电路股份有限公司 (cninfo). back to text
  12. official HKEXnews (2019). Elec & Eltek International Company Limited circular (continuing connected transactions). HKEXnews. back to text
  13. official 四会富仕电子科技股份有限公司 (cninfo) (2026). 四会富仕：关于对泰国子公司增资及完成注册资本变更登记的公告 (2026-056). 四会富仕电子科技股份有限公司 (cninfo). back to text
  14. company Fujikura Electronics (Thailand) Ltd. (2026). Corporate Info: Company Profile. Fujikura Electronics (Thailand) Ltd.. back to text
  15. company Fujikura Printed Circuits Ltd. (2026). Company profile. Fujikura Printed Circuits Ltd.. back to text
  16. official Gold Circuit Electronics Ltd. (2026). Gold Circuit Electronics 2025 Annual Report, shares held in investees (31 Dec 2025). Gold Circuit Electronics Ltd.. back to text
  17. official Delton Technology (Guangzhou) Inc. via CNINFO (2026). Guanghe Technology 2026 Semi-Annual Report, principal subsidiaries. Delton Technology (Guangzhou) Inc. via CNINFO. back to text
  18. official Founder Technology Group Co., Ltd. via CNINFO (2026). Founder Technology 2026 Semi-Annual Report, interests in subsidiaries. Founder Technology Group Co., Ltd. via CNINFO. back to text
  19. official Shenzhen Kinwong Electronic Co., Ltd. via CNINFO (2026). Announcement on increasing the investment quota for the Thailand production base (2026-016). Shenzhen Kinwong Electronic Co., Ltd. via CNINFO. back to text
  20. official NOK CORPORATION (2025). NOK Integrated Report 2025, group companies. NOK CORPORATION. back to text
  21. official Suzhou Dongshan Precision Manufacturing Co., Ltd. via CNINFO (2026). Announcement on increasing the outbound investment quota (2026-045). Suzhou Dongshan Precision Manufacturing Co., Ltd. via CNINFO. back to text
  22. official Guangdong Olympic Circuit Technology Co., Ltd. via CNINFO (2024). Progress announcement on outbound investment (2024-069). Guangdong Olympic Circuit Technology Co., Ltd. via CNINFO. back to text
  23. official Avary Holding (Shenzhen) Co., Ltd. via CNINFO (2026). Announcement on capital increase in holding subsidiary Peng Shen Thailand (2026-054). Avary Holding (Shenzhen) Co., Ltd. via CNINFO. back to text
  24. official Huizhou Zhongjing Electronics Technology Co., Ltd. via CNINFO (2026). CEE 2026 Semi-Annual Report, composition of the group. Huizhou Zhongjing Electronics Technology Co., Ltd. via CNINFO. back to text
  25. company STARTEAM GLOBAL (2026). About STARTEAM: Our Journey and Milestones. STARTEAM GLOBAL. back to text
  26. press IC&PCB Union (Hunan Printed Circuit Association) (2025). SYKC Circuit (Thailand) Hosts Grand Opening Ceremony for New Factory. IC&PCB Union (Hunan Printed Circuit Association). back to text
  27. official Shengyi Electronics Co., Ltd. via CNINFO (2025). Progress announcement on the new Thailand production base (2025-005). Shengyi Electronics Co., Ltd. via CNINFO. back to text
  28. official Shennan Circuits Co., Ltd. via CNINFO (2026). Shennan Circuits 2026 Semi-Annual Report, interests in subsidiaries. Shennan Circuits Co., Ltd. via CNINFO. back to text
  29. official Aoshikang Technology Co., Ltd. via cninfo (2026). Aoshikang Technology 2026 Interim Report (group structure table). Aoshikang Technology Co., Ltd. via cninfo. back to text
  30. official Aoshikang Technology Co., Ltd. via cninfo (2026). Aoshikang Technology 2025 Annual Report (capital reserve note). Aoshikang Technology Co., Ltd. via cninfo. back to text
  31. official Suntak Technology Co., Ltd. via cninfo (2026). Suntak Technology 2026 Interim Report (definitions). Suntak Technology Co., Ltd. via cninfo. back to text
  32. official Guangdong Ellington Electronics Technology Co., Ltd. via cninfo (2026). Ellington 2026 Interim Report (group structure table). Guangdong Ellington Electronics Technology Co., Ltd. via cninfo. back to text
  33. official Guangdong Ellington Electronics Technology Co., Ltd. via cninfo (2026). Ellington 2025 Annual Report (top shareholders). Guangdong Ellington Electronics Technology Co., Ltd. via cninfo. back to text
  34. official Ji'an Mankun Technology Co., Ltd. via cninfo (2026). Ji'an Mankun Technology convertible bond prospectus (subsidiaries table). Ji'an Mankun Technology Co., Ltd. via cninfo. back to text
  35. press Central News Agency (CNA) (2025). 【公告】欣興投資子公司UNIMICRON (THAILAND) CO., LTD.之相關 (TWSE material information, reproduced). Yahoo Finance Taiwan. back to text
  36. press MoneyDJ (2026). 燿華董事會通過增資UNITECH PCB(THAILAND)，計10億泰銖 (TWSE material information, reproduced). Yahoo Finance Taiwan. back to text
  37. official Shenzhen Jove Enterprise Limited via cninfo (2026). Shenzhen Jove Enterprise 2026 Interim Report (subsidiaries note). Shenzhen Jove Enterprise Limited via cninfo. back to text
  38. official WUS Printed Circuit (Kunshan) Co., Ltd. via cninfo (2026). WUS Printed Circuit 2025 Annual Report (group structure table). WUS Printed Circuit (Kunshan) Co., Ltd. via cninfo. back to text
  39. official Jiangxi Welgao Electronics Co., Ltd. via cninfo (2026). Jiangxi Welgao 2026 Interim Report (group structure table). Jiangxi Welgao Electronics Co., Ltd. via cninfo. back to text
  40. data Creden Data (2026). PENG SHEN TECHNOLOGY (THAILAND) CO., LTD. registered capital (DBD data). Creden Data. back to text
  41. data Creden Data (2026). Company registry record: registered capital (DBD data mirror). Creden Data. back to text
  42. data Creden Data (2026). DYNAMIC TECHNOLOGY MANUFACTURING (THAILAND) CO., LTD., registered capital. Creden Data. back to text
  43. data Creden Data (2026). CMK CORPORATION (THAILAND) COMPANY LIMITED, registered capital. Creden Data. back to text
  44. data Creden Data (2026). FUJIKURA ELECTRONICS(THAILAND) COMPANY LIMITED, registered capital. Creden Data. back to text
  45. data Creden Data (2026). Company registry record: registered capital (DBD data mirror). Creden Data. back to text
  46. data Creden Data (2026). VICTORY GIANT TECHNOLOGY (THAILAND) CO., LTD., registered capital. Creden Data. back to text
  47. data Creden Data (2026). GOLD CIRCUIT ELECTRONICS (THAILAND) CO., LTD. registered capital (DBD data). Creden Data. back to text
  48. data Creden Data (2026). MULTI-FINELINE ELECTRONICS (THAILAND) CO., LTD. registered capital (DBD data). Creden Data. back to text
  49. data Creden Data (2026). Company registry record: registered capital (DBD data mirror). Creden Data. back to text
  50. official 常州澳弘电子股份有限公司 (cninfo) (2026). 常州澳弘电子股份有限公司2025年年度报告. 常州澳弘电子股份有限公司 (cninfo). back to text
  51. official 敬鵬工業股份有限公司 (TWSE filing) (2026). 敬鵬工業股份有限公司 114年度年報 (2025 business report). 敬鵬工業股份有限公司 (TWSE filing). back to text
  52. company CMK Corporation (2026). 2026 Business Report. CMK Corporation. back to text
  53. official Delton Technology (Guangzhou) Inc. via CNINFO (2026). Guanghe Technology 2025 Annual Report, key accounting data. Delton Technology (Guangzhou) Inc. via CNINFO. back to text
  54. official 定穎投資控股股份有限公司 (TWSE filing) (2026). 定穎投資控股股份有限公司 114年度年報 (NT$ thousand). 定穎投資控股股份有限公司 (TWSE filing). back to text
  55. official Founder Technology Group Co., Ltd. via CNINFO (2026). Founder Technology 2025 Annual Report, key accounting data. Founder Technology Group Co., Ltd. via CNINFO. back to text
  56. company 株式会社フジクラ (via PR TIMES) (2026). 2026年3月期 決算短信〔日本基準〕（連結）. 株式会社フジクラ (via PR TIMES). back to text
  57. official Huizhou Zhongjing Electronics Technology Co., Ltd. via CNINFO (2026). CEE 2025 Annual Report, key accounting data. Huizhou Zhongjing Electronics Technology Co., Ltd. via CNINFO. back to text
  58. official 江苏本川智能电路科技股份有限公司 (cninfo) (2026). 江苏本川智能电路科技股份有限公司2025年年度报告. 江苏本川智能电路科技股份有限公司 (cninfo). back to text
  59. official Jiangxi Welgao Electronics Co., Ltd. via cninfo (2026). Jiangxi Welgao 2025 Annual Report (key financial data). Jiangxi Welgao Electronics Co., Ltd. via cninfo. back to text
  60. official KCE Electronics PCL (2026). KCE One Report 2025, financial summary. KCE Electronics PCL. back to text
  61. official Kingboard Holdings Limited (HKEX) (2026). Kingboard Holdings Limited Annual Report 2025 (consolidated income statement, HK$'000). Kingboard Holdings Limited (HKEX). back to text
  62. official Guangdong Olympic Circuit Technology Co., Ltd. via CNINFO (2026). Olympic Circuit 2025 Annual Report, key accounting data. Guangdong Olympic Circuit Technology Co., Ltd. via CNINFO. back to text
  63. official Shengyi Technology Co., Ltd. via CNINFO (2026). Shengyi Technology 2025 Annual Report, key accounting data. Shengyi Technology Co., Ltd. via CNINFO. back to text
  64. official Shennan Circuits Co., Ltd. via CNINFO (2026). Shennan Circuits 2025 Annual Report, key accounting data. Shennan Circuits Co., Ltd. via CNINFO. back to text
  65. official Shenzhen Jove Enterprise Limited via cninfo (2026). Shenzhen Jove Enterprise 2025 Annual Report (key financial data). Shenzhen Jove Enterprise Limited via cninfo. back to text
  66. official Shenzhen Kinwong Electronic Co., Ltd. via CNINFO (2026). Kinwong 2025 Annual Report (revised), key accounting data. Shenzhen Kinwong Electronic Co., Ltd. via CNINFO. back to text
  67. official 四会富仕电子科技股份有限公司 (cninfo) (2026). 四会富仕电子科技股份有限公司2025年年度报告. 四会富仕电子科技股份有限公司 (cninfo). back to text
  68. official Suntak Technology Co., Ltd. via cninfo (2026). Suntak Technology 2025 Annual Report (key financial data). Suntak Technology Co., Ltd. via cninfo. back to text
  69. official Suzhou Dongshan Precision Manufacturing Co., Ltd. via CNINFO (2026). DSBJ Annual Report 2025 (English). Suzhou Dongshan Precision Manufacturing Co., Ltd. via CNINFO. back to text
  70. press Central News Agency (CNA) (2026). Unimicron board announcements and 2025 financial results (CNA report, 24 Feb 2026). Central News Agency (CNA). back to text
  71. press BigGo Finance (2026). [燿華 2367.TW] 公告本公司114年第4季合併財務報告業經提報董事會通過 (TWSE material information, reproduced). BigGo Finance. back to text
  72. official 胜宏科技（惠州）股份有限公司 (cninfo) (2026). 胜宏科技（惠州）股份有限公司2025年年度报告摘要. 胜宏科技（惠州）股份有限公司 (cninfo). back to text
  73. company Zhen Ding Technology Holding Limited (2026). December 2025 Monthly Revenue Report. Zhen Ding Technology Holding Limited. back to text
  74. official The Stock Exchange of Thailand (2026). KCE factsheet (data as of 23 Sep 2026): Statement of Comprehensive Income, Total Revenues, M.Baht, columns Y/E 2023, Y/E 2024, Y/E 2025 (consolidated). The Stock Exchange of Thailand. back to text
  75. company SVI Public Company Limited (2026). SVI PCL, Form 56-1 One Report 2025, consolidated income statement, columns 31 Dec 2023 / 2024 / 2025. SVI Public Company Limited. back to text
  76. official The Stock Exchange of Thailand (2026). HANA factsheet (data as of 23 Sep 2026): Statement of Comprehensive Income, Total Revenues, M.Baht, columns Y/E 2023, Y/E 2024, Y/E 2025 (consolidated). The Stock Exchange of Thailand. back to text
  77. official The Stock Exchange of Thailand (2026). TEAM factsheet (data as of 23 Sep 2026): Statement of Comprehensive Income, Total Revenues, M.Baht, columns Y/E 2023, Y/E 2024, Y/E 2025 (consolidated). The Stock Exchange of Thailand. back to text
  78. official The Stock Exchange of Thailand (2026). CCET factsheet (data as of 23 Sep 2026): Statement of Comprehensive Income, Total Revenues, M.Baht, columns Y/E 2023, Y/E 2024, Y/E 2025 (consolidated). The Stock Exchange of Thailand. back to text
  79. official The Stock Exchange of Thailand (2026). DELTA factsheet (data as of 23 Sep 2026): Statement of Comprehensive Income, Total Revenues, M.Baht, columns Y/E 2023, Y/E 2024, Y/E 2025 (consolidated). The Stock Exchange of Thailand. back to text
  80. official The Stock Exchange of Thailand (2026). SMT factsheet (data as of 23 Sep 2026): Statement of Comprehensive Income, Total Revenues, M.Baht, columns Y/E 2023, Y/E 2024, Y/E 2025 (consolidated). The Stock Exchange of Thailand. back to text
  81. official The Stock Exchange of Thailand (2026). SPI factsheet (data as of 23 Sep 2026): Statement of Comprehensive Income, Total Revenues, M.Baht, columns Y/E 2023, Y/E 2024, Y/E 2025 (consolidated). The Stock Exchange of Thailand. back to text
  82. official The Stock Exchange of Thailand (2026). ROJNA factsheet (data as of 23 Sep 2026): Statement of Comprehensive Income, Total Revenues, M.Baht, columns Y/E 2023, Y/E 2024, Y/E 2025 (consolidated). The Stock Exchange of Thailand. back to text
  83. official The Stock Exchange of Thailand (2026). AMATA factsheet (data as of 23 Sep 2026): Statement of Comprehensive Income, Total Revenues, M.Baht, columns Y/E 2023, Y/E 2024, Y/E 2025 (consolidated). The Stock Exchange of Thailand. back to text
  84. official The Stock Exchange of Thailand (2026). WHA factsheet (data as of 23 Sep 2026): Statement of Comprehensive Income, Total Revenues, M.Baht, columns Y/E 2023, Y/E 2024, Y/E 2025 (consolidated). The Stock Exchange of Thailand. back to text
  85. official Avary Holding (Shenzhen) Co., Ltd. via CNINFO (2025). Announcement on the 2026 Thailand park investment plan (2025-073). Avary Holding (Shenzhen) Co., Ltd. via CNINFO. back to text
  86. official Shengyi Electronics Co., Ltd. via CNINFO (2026). Shengyi Electronics 2026 Semi-Annual Report, other disclosures. Shengyi Electronics Co., Ltd. via CNINFO. back to text
  87. official The Stock Exchange of Thailand (2026). ตลาดหลักทรัพย์ฯ เพิกถอนหุ้นสามัญของ SVI จากการเป็นหลักทรัพย์จดทะเบียน (13 May 2026). The Stock Exchange of Thailand. back to text
  88. company SVI Public Company Limited (2026). SVI PCL, Form 56-1 One Report 2025, notes to the financial statements: investment in joint venture. SVI Public Company Limited. back to text
  89. official Kingboard Holdings Limited (HKEX) (2026). Kingboard Holdings Limited Annual Report 2025 (PCB division review). Kingboard Holdings Limited (HKEX). back to text
  90. official NOK CORPORATION (TSE TDnet) (2026). 2026年3月期 決算短信〔日本基準〕(連結). Japan Exchange Group (TDnet). back to text
  91. data EDINET DB (2026). NOK株式会社 有価証券報告書 (沿革), EDINET text mirror. EDINET DB. back to text
  92. data EDINET DB (2026). 株式会社フジクラ 有価証券報告書 (関係会社の状況), EDINET text mirror. EDINET DB. back to text
  93. official 江苏本川智能电路科技股份有限公司 (cninfo) (2026). 江苏本川智能电路科技股份有限公司2025年年度报告 (business overview). 江苏本川智能电路科技股份有限公司 (cninfo). back to text
  94. official Shennan Circuits Co., Ltd. via CNINFO (2026). Shennan Circuits 2025 Annual Report, management discussion. Shennan Circuits Co., Ltd. via CNINFO. back to text
  95. official 華通電腦股份有限公司 (TWSE filing) (2026). 華通電腦股份有限公司 114年度年報 (關係企業組織圖, second Thai entity). 華通電腦股份有限公司 (TWSE filing). back to text
  96. official 臻鼎科技控股股份有限公司 Zhen Ding Technology Holding Limited (TWSE filing) (2026). 代子公司Avary Singapore Private Limited公告增資子公司 Peng Shen Technology (Thailand) Co., Ltd. (Capital increase in the subsidiary Peng Shen Technology (Thailand), filed on behalf of Avary Singapore Private Limited), material information, 29 June 2026. Market Observation Post System (MOPS), Taiwan Stock Exchange; TWSE stock code 4958. back to text

How to cite: MPBx Research Team (2026). Who owns Thailand's PCB plants: parents, listings and joint ventures. MPBxChange research. https://www.mpbxchange.com/research/who-owns-thailand-pcb-plants

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