Guangdong Sihui Instrument Transformer Works Co., Ltd.

Site build — Faisco (template builder) · content updated 2026

Homepage as rendered on 2026-07-25 — click to open the live site.

average across 67 audited Transformers & Switchgear suppliers

Data source: FactoryBase AI site audit · swept 2026-07-23

Registered capital

CNY 200.00M
≈ $27.97M

Legal representative

张树华

Operating status

active

Affiliated companies

0

Unified social credit code: 914412847520620364

Data source:· swept 2026-07-23

The company specializes in the design, production, and sales of electrical instrument transformers including epoxy resin insulated current transformers (CT), oil insulated voltage transformers (SSVT), epoxy resin insulated metering devices, GIS-type voltage transformers (VT), and related accessories. Products are used in high-voltage power systems for applications such as GIS substations, satellite launch centers, and aerospace support, featuring advanced insulation and testing systems.

Data source: Company website· swept 2026-07-25

Patents

100 patents

Export markets

United States, European Union, Russia, Southeast Asiacompany-stated

Data source:· swept 2026-07-23

Data source: Company website · swept 2026-07-25

Web-presence grading is rolling out across this category (67/79 graded so far). See the full Transformers & Switchgear ranking ↗

Data source: FactoryBase category index · 79 profiled suppliers

Other suppliers profiled in the same category — compare before you commit.

Data source: FactoryBase category index

Is Guangdong Sihui Instrument Transformer Works Co., Ltd. a factory I can order from directly?

It is profiled as a manufacturer from its registered business scope, which covers design, manufacture, and sales of instrument transformers, dry-type power transformers, and related electrical equipment. The company is active, founded in 2003, with no affiliated companies listed in the registry.

What products does Guangdong Sihui Instrument Transformer Works Co., Ltd. say it makes?

In its own marketing description, the company specializes in the design, production, and sales of electrical instrument transformers, including epoxy resin insulated current transformers, oil insulated voltage transformers, epoxy resin insulated metering devices, GIS-type voltage transformers, and related accessories. It describes these for use in high-voltage power systems such as GIS substations and aerospace support applications.

How does this supplier compare in size and age to other Transformers & Switchgear suppliers in China?

Registered capital of CNY 200 million (about US$27.97 million) is higher than 93% of peers, placing it among the larger suppliers by capital in the category. Founded in 2003, it is older than 71% of other Transformers & Switchgear suppliers in China, making it one of the longer-established. Social insurance records show 600 people on payroll, matching the company's stated headcount.

What certifications and awards does the company claim?

The company states it holds ISO9001, ISO14001, and OHSAS18001. It also lists company-stated awards such as China Environmental Label Product, Guangdong Famous Trademark, National High-tech Enterprise, National Intellectual Property Advantage Enterprise, National 'Little Giant' Enterprise, and National Two-in-One Integration Management System Certification.

Which export markets does it claim, and what has been verified?

The company states export markets include the United States, the European Union, Russia, and Southeast Asia. Independent customs or shipment (bill of lading) records are not yet verified, and export volumes and named buyers have also not been independently verified.

What should a buyer watch out for?

The company website does not use HTTPS, the primary website is not in English, and inquiries are collected via a free mailbox (QQ/163) rather than a company domain. These points are worth checking when you contact or review the firm.

What's the bottom line for a buyer considering Guangdong Sihui Instrument Transformer Works Co., Ltd.?

It is an active manufacturer (from registered business scope) founded in 2003, with registered capital among the higher end of other Transformers & Switchgear suppliers in China and a reported workforce of 600. Company-stated certifications, awards, and export markets are listed, but independent customs records are not yet verified, and the website lacks HTTPS, is not in English, and uses a free mailbox for inquiries. Buyers should verify claims independently before ordering.

How was this profile built — can I trust it?

Yes — it is compiled independently by our AI from dated, public evidence: business registries (via grok), an automated website audit, and Guangdong Sihui Instrument Transformer Works Co., Ltd.'s own site — not from anything the company submitted. Where Guangdong Sihui Instrument Transformer Works Co., Ltd. states something about itself, we show it beside the public record, so you are reading sourced facts, not marketing.