Supplier / Nong Yai, Chonburi (Rojana Nongyai Industrial Estate) · TH
Multi-Fineline Electronics (Thailand) · MFLEX
MULTI-FINELINE ELECTRONICS (THAILAND) CO., LTD.
Multi-Fineline Electronics (Thailand) Co., Ltd. makes flex PCBs in Rojana Nongyai Industrial Park, Chon Buri, Thailand. Part of Suzhou Dongshan Precision Manufacturing Co., Ltd. (DSBJ). Thai name: บริษัท มัลติ-ฟายน์ไลน์ อิเล็กทรอนิกส์ (ไทยแลนด์) จำกัด.
PCB illustration · company photos not supplied
- Manufacturing site
- Rojana Nongyai Industrial Park
- Board type
- flex
- Profile ownership
- Not confirmed
- Research reviewed
- 2026-09-24
Know the company.
Multi-Fineline Electronics (Thailand) · MFLEX makes printed circuit boards at Rojana Nongyai Industrial Park. The plant is in production. Part of Suzhou Dongshan Precision Manufacturing Co., Ltd. (DSBJ), via its MFLEX and Multek businesses (China).
Manufacturing site
End markets: AI and data centre · AI servers · automotive · computing · consumer electronics · data centres · medical · smartphones · wearables
Who owns this plant
- Thai legal entity
- MULTI-FINELINE ELECTRONICS (THAILAND) CO., LTD. · บริษัท มัลติ-ฟายน์ไลน์ อิเล็กทรอนิกส์ (ไทยแลนด์) จำกัด
- Registration number
- 0205566036951 · registered 2023-06-30
- Registered capital
- THB 5,000,000,000
- Owned by
- Suzhou Dongshan Precision Manufacturing Co., Ltd. (DSBJ), 2026-08-22[3]
- Parent group
- Suzhou Dongshan Precision Manufacturing Co., Ltd. (DSBJ) (苏州东山精密制造股份有限公司) · China · SZSE 002384 · revenue 40,124,858,839.52 CNY in 2025[5]
Published investment
- Phase one, multilayer and flexible PCB plant, Rojana Nong Yai Industrial Park, Chonburi (BOI): 14,000,000,000 THB, 2026-05-18[6]
- Phase two expansion approved by BOI: 5,800,000,000 THB, 2026-05-18[6]
- Optical chip and optical module expansion project, group total across Source Photonics, MFLEX Thailand and Yancheng Dongshan (Changzhou, Thailand, Yancheng): 1,700,000,000 USD, 2026-08-20[4]
What the company has announced next
- MFLEX Thailand is one of the implementing companies of DSBJ's optical chip and optical module expansion project, raised from USD 1.2 billion to USD 1.7 billion in August 2026.[4]
- The flexible PCB business at the Thailand plant has completed qualification with its main customers, and capacity is expected to ramp from the second half of 2026 with new models.[7]
- Multek said the Thailand facility allows further capacity expansion in future phases.[8]
Company facts from filings, the Thai company register, BOI releases and company announcements. Private individuals are not named.
- MULTI-FINELINE ELECTRONICS (THAILAND) CO., LTD. company profile (DBD data). Creden Data (2026)
- MULTI-FINELINE ELECTRONICS (THAILAND) CO., LTD. registered capital (DBD data). Creden Data (2026)
- Announcement on increasing the outbound investment quota (2026-045). 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 (2026)
- DSBJ Annual Report 2025 (English). Suzhou Dongshan Precision Manufacturing Co., Ltd. via CNINFO (2026)
- BOI อนุมัติ 3 โครงการใหญ่ PCB ทุ่มเฟสสอง 22,000 ล้านบาท. Techsauce (2026)
- DSBJ investor relations activity record, Q3 2025 results briefing. Suzhou Dongshan Precision Manufacturing Co., Ltd. (2025)
- Multek announces update on new manufacturing facility in Thailand. Multek (2024)
- Announcement on increasing the outbound investment quota (2026-045), header. Suzhou Dongshan Precision Manufacturing Co., Ltd. via CNINFO (2026)
- DSBJ Annual Report 2025 (English), definitions. Suzhou Dongshan Precision Manufacturing Co., Ltd. via CNINFO (2026)
Tracker events for this plant
Dongshan Precision. Dongshan Precision's Hong Kong listing prospectus listed its Chon Buri PCB plant, established in 2023, with a gross floor area of 155,976 square metres, and disclosed that the registered capital of Multi-Fineline Electronics (Thailand) rose from THB 3.5 billion to THB 5 billion on 8 June 2026. HKEXnews, Suzhou Dongshan Precision Manufacturing Co., Ltd. (stock code 2384)
Multi-Fineline Electronics (Thailand). The BOI approved a second phase of THB 5,800 million for Multi-Fineline Electronics (Thailand) at Rojana Nong Yai Industrial Estate, Chon Buri, after a first phase of THB 14,000 million. Thailand Board of Investment
Dongshan Precision. Dongshan Precision told investors that its new capacity in Thailand was still being converted into output. Suzhou Dongshan Precision Manufacturing investor relations record, mirrored by Tencent Finance
Find the technical fit.
Reported site status: operating: phase 2 approved by BOI May 2026
Construction
- Board types
- flex
- Published for this plant
- Maximum layers
- Ask the plant
- Not published: ask
- HDI (microvias)
- Ask the plant
- Not published: ask
- 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
- Ask the plant
- Not published: ask
- Smallest finished hole
- Ask the plant
- Not published: ask
- 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
- Polyimide · LCP
- Parent group only
- Surface finishes
- Ask the plant
- Not published: ask
- Solder mask and legend colours
- Ask the plant
- Not published: ask
Quality and certificates
- Certificates
- Ask the plant
- Not published: ask
- 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
- Ask the plant
- Not published: ask
- Assembly at this site
- Yes, SMT and assembly
- Published for this plant
- Lead time, prototype and production
- Ask the plant
- Not published: ask
Special processes on record: Complex HDI rigid, flexible and rigid-flex PCBs plus thermal management and value-added assembly (Multek announcement); multilayer and flexible PCB (BOI)
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.
Trust you can inspect.
Every detail on this page has a source or a confirmation date. A confirmed page does not certify capability: ask the plant for its current certificates.
- Company identity
- Not confirmed
- Representative authority
- No contact person published yet
- Supporting evidence
- Research sources below