EMS–TRADE Electronics export trading
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Finished server racks and 1U power shelves staged in rows on pallets in a bright dispatch hall

Shenzhen · electronics export trading · since the early 1990s

A Shenzhen trading house that carries your order through China's supply chain.

We are not a factory website. We are the buyer's front door into a 24-site supplier network, and the party accountable on the contract.

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In Shenzhen
30+ yrs
An export trading house since the early 1990s
Customers
100,000+
Cumulative, domestic and international
Our own factory
45,000m²
PCB & PCBA, Bao'an, Shenzhen
People
500+
Company and factory together

01What you can buy

Twelve product categories,
each made by a named site.

Finished 1U rack PDU above a matching DC power shelf on a pale bench CAT-01

Data-centre & rack power

Rack PDU to 36 kWCRPS 550 W–5.5 kWBBU 5.12 kWh

Built by VoltFab · TitanWatt · VoltBridge · AmpRack · CapStack · RackForge · DryLink, seven sites

Production panel of identical finished printed circuit boards held in a white inspection fixture CAT-04

PCB fabrication & PCBA

1–58 layersHDI, flex, rigid-flexSMT · DIP · box build

Built by Saturn PCBA · Whale PCBA · Uppcba · Kingdta, four sites

02The network

24 independent factories
behaving like one supplier.

One purchase order. One engineering contact in English. One party accountable for quality and delivery.

Buyer OEM / ODM Integrator Distributor Importer One PO, one contract EMS–TRADE Accountability layer Engineering & solutions team writes the assessment, not salespeople Export execution documents · freight · customs · delivery Our own PCB & PCBA factory 45,000 m² · Bao'an · 500+ people 9 SMT + 5 DIP lines · up to 58 layers trust floor — not counted in the 24 Group A — Data centre & compute infrastructure 7 sites VoltFab TitanWatt VoltBridge AmpRack CapStack RackForge DryLink Rack PDU · BBU · 48 V supercapacitor · CRPS / M-CRPS 550 W–5.5 kW · 80 PLUS Titanium · busway · AI racks 42U–52U Cold-aisle containment · OCP UQD · liquid-cooling manifolds · CDU and cold plates Group B — New energy 3 sites EMS-ESS EMS-SOLAR ems-charge ESS 5.12–30.72 kWh · grid-tie microinverters 400–1600 W · N-type TOPCon 430–720 W · HJT to 730 W · BIPV AC charging 7.4–22 kW · DC fast charging 30–360 kW · OCPP 2.0.1 platform Group C — Electronics manufacturing 5 sites Saturn PCBA Whale PCBA Uppcba Kingdta EMS Drone PCB 1–58 layers · multilayer & HDI · flex & rigid-flex · SMT / DIP / mixed assembly · box build · DFM review UAV supply chain — flight control · ESC & power · propulsion · airframes · RF links · payload Group D — Consumer & terminal products 7 sites AOMAN FUTURE EMS-Display EMS Eyewear Precise3D MODURA EMS-EBIKE EMS Biometric Service robots · TFT-LCD 0.96″–15.6″ & AMOLED modules · AI smart glasses, 6 OEM/ODM lines · 3D printers E-tricycles & e-bikes 36–72 V · modular buildings · fingerprint chips → modules → terminals · ESL 2.1″–7.5″ Group E — Embedded & other 2 sites GEOLiNK D.F.S Eastops Industrial motherboards & SBCs — 2.5″, 3.5″, 3.5″ Wide, NANO-ITX, Mini-ITX, NUC Retail display security · electronic shelf labels

Scroll the diagram sideways to read every site

03How we carry it

Six service lines,
one contract.

Technical drawing flat on a pale bench with digital calipers, a drafting triangle and sample parts SVC-01

Sourcing & matching

The fear: quoting with a trading company posing as the factory.

Mechanism: we name the production site and vet its entity, certificates and process route before you commit.

Two pairs of hands over a technical drawing, one pointing at a dimension tick with a pen SVC-02

Language bridge

The fear: an unanswered engineering question costs a week.

Mechanism: drawings, BOMs and change notes carried in Chinese by our own engineers, not a translation app.

Factory assembly hall with machines in rows seen down a central aisle SVC-03

China visit & factory tours

The fear: a showroom that is not the production line.

Mechanism: invitation letter, itinerary, visa support and a hosted week; you stand on the line that will run your order.

Engineering bench under an inspection lamp with a finished board assembly, a magnifier arm, a blank laptop screen and sample connectors SVC-04

Technical assessment

The fear: nobody on your side can read the factory's answer.

Mechanism: a written assessment and optimisation plan, plus third-party lab testing on request.

Digital calipers closed around a machined aluminium housing beside a sealed sample bag and a white glove SVC-05

Production follow-up & QC

The fear: the first article passed, the production batch did not.

Mechanism: we sit in the factory through the build and inspect to ISO 2859-1 level II before it ships.

Export loading bay with an open container onto a pale apron and unlabelled cartons on pallets SVC-06

Export execution

The fear: the goods are made and nobody owns the paperwork.

Mechanism: documents, freight and customs under one contract on FOB terms, the declaration in our name.

04Industries

Six industries we already build for.

Finished AC wallbox charger and DC fast-charging cabinet on a pale apron IND-03

EV charging & energy storage

AC 7.4–22 kW and DC 30–360 kW on an OCPP 2.0.1 platform; storage 5.12–30.72 kWh at 10,000 cycles.

Served by Group B · three supplier sites

Finished diagnostic instrument housing and a sealed display module on a pale bench IND-04

Medical devices & diagnostics

Sites here run ISO 13485:2016 alongside ISO 9001, with 100% powered-on test and station-level traceability.

Served by Whale PCBA · Uppcba · EMS-Display

Finished rack-mounted network switch units stacked on a pale bench IND-05

Telecom, networking & 5G

Board-level builds to 58 layers with impedance control, tested per serial number before packing.

Served by Saturn PCBA and Whale PCBA

05Why us

Every product has a board inside.
We own the board.

We fabricate and assemble boards in our own factory and assess them with our own engineers — which is why we can question a partner's board-level claims instead of repeating them.

Our own PCB and PCBA factory floor, SMT lines running back from the camera toward the far wall
Our own line. Nine SMT and five DIP lines in Bao'an, Shenzhen.
Production panel of identical printed circuit boards held in a white inspection fixture
Our own board. Fabrication to 58 layers, assembly and test under one roof.
Finished CRPS server power supply module with a perforated intake face, the kind of unit built on our own boards
Why it matters. A power supply is a board assembly before it is a product.
See our own PCB & PCBA factory

06Start

Send us your spec.

Name the category or attach the drawing. We reply with a written technical assessment, from an engineer rather than a chatbot.

Recorded. An engineer will reply.

Written technical assessment, from eric@dfshk.cn.

Book a factory visit eric@dfshk.cn · +86 152 3512 7440