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Ningbo Factory · China Manufacturing

Kingsun Ningbo Factory
20+ Years of Manufacturing Excellence

Ningbo, China headquarters with full R&D and quality control capabilities.
UL / ETL / CSA certified · OEM/ODM partner for North American & European buyers.

Vietnam Factory · Zero Tariff to USA

Kingsun Vietnam Factory
Your Tariff-Free Partner

18,000 m² factory in Vietnam ships to the USA with 0% import tariff.
ISO 9001 certified · 8 production lines · Save 25%+ on landed costs.

Outdoor Power · Home & Garden

Outdoor Power.
Built for Every Season.

Extension cord programs for lawn mowers, hedge trimmers and outdoor electric tools.
SJTW / SJEOW options · 12/3 & 14/3 AWG · Length, color and plug configurations on request.

Data Center Power Distribution

Rack-Level Power.
Designed Around Your PDU.

IEC C13/C14 and C19/C20 cord sets for rack PDUs, servers and network equipment.
Custom lengths, connector pairings and color coding available on request.

Dual Factory · China & Vietnam

18,000 m² Vietnam Factory
Zero Tariff to USA

Our Vietnam factory ships directly to the USA with 0% import tariff.
Save 25%+ on landed costs. 8 automated production lines. ISO 9001 certified.

NMD90 Building Wire

CSA Certified NMD90
for Canadian Construction

Copper NMD90 building wire for residential and commercial projects.
CSA C22.2 certified · 14–6 AWG · Meets all Canadian electrical codes.









20+Years Experience
18,000m²Vietnam Factory
8Production Lines
0%Tariff VN→USA

Kingsun Cable Programs

Built for the markets
you serve.

From power distribution to building wire, our China and Vietnam manufacturing bases support specification-led programs for North America and Europe.

OEM / ODMChina + VietnamSpecification-led

Your cable specification.
Our manufacturing system.

Build the exact product, compliance package, color, length and retail-ready packaging your market needs — backed by responsive engineering and production support.

Power cords and extension cords

Power Distribution

Power & Extension

SJTW, SPT and international cord programs for appliances, tools and commercial use.

Power Distribution

Power & Extension

Indoor, outdoor and equipment-cord programs aligned to your market, length and plug format.

SJTWSPTCustom plug

Explore Series

NMD90 building wire

North American Construction

Building Wire

NMD90, NM-B and MC cable constructions for residential and commercial projects.

North American Construction

Building Wire

Construction-grade programs for Canada and the USA, reviewed around conductor, jacket and compliance requirements.

NMD90NM-BMC Cable

Explore Series

7-way trailer cable

Mobile & Towing

Trailer Cable

4-way and 7-way trailer solutions for RV, truck and towing applications.

Mobile & Towing

Trailer Cable

Road-ready cable constructions for trailer, RV and towing programs, with tailored lengths and packaging.

4-Way7-WaySAE J1128

Explore Series

Power distribution solutions

Data & Power

Network & Strips

Cat6 cable, RJ45 patch cords and multi-outlet power distribution programs.

Data & Power

Network & Strips

Structured cabling, patch leads and multi-outlet power distribution for commercial and OEM applications.

Cat6RJ45Power strip

Explore Products

Your Competitive Advantage Starts Here

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Dual Factory Advantage

Ningbo China factory for R&D and quality control. 18,000 m² Vietnam factory for cost-competitive production with 0% US tariff.

Full Certifications

UL Listed, ETL Certified, CSA Approved, ISO 9001:2015, BSCI audited. All major North American safety standards covered.

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0% Tariff from Vietnam

Vietnam-origin products ship to the USA with zero import tariff. Save 25%+ on landed costs vs. China-origin competitors.

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OEM / ODM Capability

Custom cable lengths, colors, packaging, and private labeling. 8 automated production lines with 20+ years of OEM experience.

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Fast Lead Times

Standard orders ship in 25–35 days. Stocked items available for quick dispatch. FOB Ningbo or Ho Chi Minh City.

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Strict Quality Control

100% electrical testing on every unit. In-house lab with conductor resistance, insulation resistance, and voltage withstand tests.

18,000 m² State-of-the-Art Manufacturing

Located in Tan Duc Industrial Park, Long An Province, Vietnam — our purpose-built factory features 8 automated production lines, a dedicated QC lab, and direct access to major shipping routes to North America.

  • ✔ 18,000 m² total floor area
  • ✔ 8 fully automated production lines
  • ✔ ISO 9001:2015 certified quality system
  • ✔ BSCI social compliance audited
  • ✔ 0% import tariff to USA
  • ✔ 200+ skilled workers

Learn More About Us

Kingsun Vietnam Factory

Certified for North American & International Markets

Every product we manufacture meets rigorous third-party safety and quality standards. Click any certificate to view the full document.

ETL Certificate

ETL Listed
Intertek — Power Supply Cords

UL Certificate

UL Listed
UL International — Wire & Cable

ISO 9001 Certificate

ISO 9001:2015
TQC Vietnam — Quality Management

BSCI Certificate

BSCI / amfori
Bureau Veritas — Social Compliance

Ready to Source from a Certified Manufacturer?

Get a competitive quote within 24 hours. OEM/ODM welcome. Minimum order quantities flexible.