China-Plus-One ManufacturingGold report

Published May 2026Insight Research23 min read2026 Edition15 sources, 15 primary-gradeVery high source depth

Thailand China-Plus-One Manufacturing Migration 2027 Market Intelligence

BOI FY2025 applications hit THB 1.876T (up 36%). Chinese OEMs (BYD, Haier, Midea, Hisense) are building factories now for 2027 production. EV, appliance, semiconductor, data-centre investment corridors mapped with entry thesis for buyers and investors.

Key takeaways

1
Thailand BOI FY2025 investment applications hit , up YoY. Chinese FDI accounted for roughly of total manufacturing applications. Data centres alone attracted .
2
Chinese EV OEMs are the headline: BYD (-unit Rayong plant, produced by Dec 2025), Changan (-unit, operational May 2025), Great Wall Motor (-unit), Chery, SAIC. Combined Chinese auto investment exceeds in Thailand.
3
Appliance migration is equally significant but under-covered: Haier (-unit AC plant, Chonburi), Midea (seven Thai manufacturing bases, -unit AC capacity), Hisense (-unit industrial park under construction), TCL (refrigerator and smart TV factories).
4
Semiconductor backend is the emerging corridor: Infineon broke ground on a backend fab in Samut Prakan (first output early 2026); BOI targets in semiconductor investment under the national chip roadmap to 2050.
5
Risk factors: Thai Baht appreciated in 2025 (vs Vietnam dong -), creating a competitiveness gap; US tariff truce reduced duties to (from ), potentially slowing urgency; Thai labour costs run above India and meaningfully above Vietnam.

Executive summary

US tariffs on Chinese goods (peaking at in April 2025, settled at under the May 2025 truce) have catalysed an unprecedented wave of Chinese OEM factory relocation into Southeast Asia. Thailand has captured a disproportionate share of this migration, with BOI FY2025 investment applications reaching across 3,370 projects, a increase in value and increase in project count. The Eastern region (EEC provinces of Chonburi, Rayong, Chachoengsao) absorbed of total applications.^{[, ]}

Four investment corridors define the 2027 opportunity. First, EV and auto parts: BYD, Changan, Great Wall Motor, Chery, and SAIC are building or expanding Thai production bases with combined capacity exceeding 500,000 vehicles annually by 2027, supported by BOI EV 3.5 incentives requiring a 3:1 local-to-import assembly ratio from 2027. Second, electronics and appliances: Haier, Midea, Hisense, and TCL are establishing Thailand as a global appliance export hub to circumvent US tariffs, with combined annual capacity approaching 25 million units across air conditioners, refrigerators, washing machines, and smart TVs.^{[, , , ]}

Third, semiconductor backend: Infineon's Samut Prakan fab (first output early 2026) anchors Thailand's push into advanced packaging and power electronics, with BOI targeting total semiconductor investment under a national chip roadmap to 2050. Fourth, data centres: FY2025 saw in data-centre applications alone, with approved projects from True IDC, Gulf-Singtel-AIS (GSA), and hyperscaler partnerships transforming Thailand into Southeast Asia's emerging digital infrastructure hub.^{[, ]}

The structural thesis is sound but not risk-free. Thai Baht strength ( appreciation in 2025) erodes cost competitiveness against Vietnam and Indonesia. Labour costs run above India and meaningfully above Vietnam. Infrastructure bottlenecks in EEC power supply and port capacity constrain absorption of the investment pipeline. And the US tariff truce itself may slow the urgency of relocation if Chinese exporters regain partial access. This report maps each corridor, quantifies the 2027 production ramp, and identifies where the opportunity window is widest for investors, industrial-park developers, and supply-chain buyers.^{[, , ]}

BOI, S&P Global, SEMI, World Bank, HSBC, company filings

Data as of: FY2025 and Q1 2026

Thailand BOI investment applications (THB billion, 2020-2025)

2020

Value (THB B)

412

Context

COVID trough, manufacturing stall

2021

Value (THB B)

523

Context

Recovery, early China-Plus-One signals

2022

Value (THB B)

664

Context

Post-COVID acceleration, EV interest

2023

Value (THB B)

848

Context

BYD, Great Wall Motor plants approved

2024

Value (THB B)

1,111

Context

Data-centre wave begins, EV 3.5 launched

2025

Value (THB B)

1,876

Context

Record: data centres $21.1B, EV, semiconductor

Year	Value (THB B)	Context
2020	412	COVID trough, manufacturing stall
2021	523	Recovery, early China-Plus-One signals
2022	664	Post-COVID acceleration, EV interest
2023	848	BYD, Great Wall Motor plants approved
2024	1,111	Data-centre wave begins, EV 3.5 launched
2025	1,876	Record: data centres $21.1B, EV, semiconductor

BOI official data, Nation Thailand

Data as of: FY2025 full year

Investment corridor mix (% of China-Plus-One FDI pipeline, FY2025)

EV and auto parts

Share %

28%

Key operators and projects

BYD, Changan, Great Wall, Chery, SAIC, CATL battery

Data centres and cloud

Share %

22%

Key operators and projects

True IDC, GSA (Gulf-Singtel-AIS), hyperscaler partnerships

Electronics and appliances

Share %

20%

Key operators and projects

Haier, Midea, Hisense, TCL, Changhong

Semiconductor backend

Share %

12%

Key operators and projects

Infineon backend fab, TSMC-affiliated packaging, BOI chip roadmap

Petrochemical, advanced materials

Share %

10%

Key operators and projects

Downstream chemical, EV battery materials, specialty plastics

Other (food processing, logistics)

Share %

Key operators and projects

Cold chain, warehouse, food-grade manufacturing

Corridor	Share %	Key operators and projects
EV and auto parts	28%	BYD, Changan, Great Wall, Chery, SAIC, CATL battery
Data centres and cloud	22%	True IDC, GSA (Gulf-Singtel-AIS), hyperscaler partnerships
Electronics and appliances	20%	Haier, Midea, Hisense, TCL, Changhong
Semiconductor backend	12%	Infineon backend fab, TSMC-affiliated packaging, BOI chip roadmap
Petrochemical, advanced materials	10%	Downstream chemical, EV battery materials, specialty plastics
Other (food processing, logistics)	8%	Cold chain, warehouse, food-grade manufacturing

BOI, S&P Global, SEMI, company announcements

Data as of: FY2025

Analyst framing

Why this report

China-Plus-One is not a trend — it is a structural repricing of global manufacturing geography triggered by US tariffs, EU de-risking, and Japanese economic-security policy. Thailand is absorbing the largest share of Chinese OEM relocation in Southeast Asia across four corridors: EV, appliances, semiconductor, and data centres. The 2027 vintage is when these factories hit full production. This report maps where the opportunity window is widest and where risks (Baht, labour cost, infrastructure) could narrow it.

Operator playbooks

BYD: Thailand's largest Chinese EV presence. The Rayong plant (150,000-unit designed capacity) is BYD's first wholly-owned overseas passenger-vehicle factory. By December 2025 it had produced 70,000 units. Models include Atto 3, Dolphin, and Seal for ASEAN and global right-hand-drive markets. BYD's vertically integrated battery-to-vehicle model means the Thai plant pulls in battery-pack, motor, and electronics supply chain. Strategic significance: sets the price-and-scale benchmark for all other EV entrants.

Haier Smart Home: Chonburi Air Conditioning Industrial Park is Haier's largest AC manufacturing base by a Chinese brand in Southeast Asia, with planned capacity of 6 million units annually. The facility supplies North America, Europe, Japan, and South Korea directly from Thai soil. BOI approved USD 400M in Haier investment. Strategic significance: demonstrates that appliance migration is as large as EV migration, with Thailand positioned as the global export hub.

Midea Group: operates seven major manufacturing bases in Thailand covering air conditioners (5M-unit capacity), washing machines, refrigerators, household appliances, microwaves, cleaning appliances, compressor components, and smart building technology. Midea's Thai footprint is the deepest of any single Chinese appliance manufacturer, spanning input components through finished goods. Strategic significance: scale and breadth create a self-reinforcing supply-chain cluster.

Hisense: the HHA Smart Manufacturing Industrial Park is Hisense's largest overseas industrial base, planned for completion over five years with an annual production capacity of 12 million units and output exceeding THB 100 billion upon full operation. Covers smart TVs, home appliances, and commercial display. Strategic significance: the single largest announced Chinese appliance investment in ASEAN by unit capacity.

Japanese incumbents (Toyota, Honda, Denso, Panasonic): Thailand's legacy automotive base produces approximately 1.8 million vehicles annually (pre-EV), anchored by Toyota and Honda with deep Tier 1-3 supply chains. Denso operates multiple EEC-based plants. These incumbents are pivoting rather than retreating: Toyota, Honda accelerating HEV and BEV lines in Thailand. Strategic significance: the existing Japanese base gives Thailand manufacturing depth that Vietnam and Indonesia cannot match for automotive precision.

Changan Automobile: Rayong plant commenced production May 2025 with an annual output target of 100,000 units for ASEAN markets. Chongqing's first overseas NEV factory. Models include Deepal and Avatr brands. Great Wall Motor: 80,000-unit Rayong capacity producing Ora Good Cat, Haval, and Tank models; key right-hand-drive production base for Southeast Asia. CATL: partnership with Thai state-owned entity for battery assembly, anchoring the EV battery supply chain.

Market mechanics: why Thailand wins (and where it does not)

Thailand wins on three structural advantages. First, existing manufacturing depth: 1.8M-vehicle legacy auto base with trained workforce, Tier 1-3 supplier networks, and logistics infrastructure that Vietnam and Indonesia cannot replicate in under a decade. Second, BOI incentive architecture: 8-year corporate income tax holidays for EEC-based investments, EV 3.5 excise tax reduction (8% to 2%), and dedicated semiconductor and data-centre promotion packages. Third, geographic positioning: right-hand-drive production hub serving Japan, UK, Australia, ASEAN, and India.

Where Thailand loses: labour cost. Thai manufacturing wages average USD 6-9 per day (USD 1.37/hour minimum), versus Vietnam at USD 3/hour average and India at substantially lower rates. Thai employer social contributions are modest (5%), but base wages are 150% above India. The Thai Baht appreciated 8% in 2025 while the Vietnamese dong depreciated 3%, creating a 10-12% competitiveness gap that directly erodes export margins. Infrastructure bottlenecks in EEC power supply, water, and port congestion are material constraints as the investment pipeline converts to operational factories.

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