Contact & Technical RFQ Portal

Submit customized transformer specifications, query electrical engineering parameters, or schedule an on-site audit at our Bac Ninh production facilities.

Global Procurement & Project Inquiries

SOTEK Group engineering teams provide technical support, custom design verification, type test dossier preparation, and fast quotation turnaround for utility grid operators, EPC contractors, and global distributors.

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Technical Sales Hotline

Direct connection with our international B2B sales engineers for rapid response.

+84 903.219.753
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Engineering RFQ Email

Send complete project specifications, tender requirements, and CAD requests.

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Factory & Plant Location

Tien Son Industrial Park, Dong Nguyen Ward, Tu Son City, Bac Ninh Province, Vietnam.

ISO 9001:2015 Manufacturing Hub
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Operational Hours

Manufacturing & Export Logistics Department active operational schedule.

Mon โ€“ Sat: 08:00 โ€“ 17:30 (UTC+7)

Verified B2B Engineering Capabilities & Quality Compliance

SOTEK Group specializes in designing, manufacturing, and exporting high-performance distribution transformers up to 21,000 kVA and 69 kV class. Serving national utilities such as EVN (Vietnam) and Aboitiz Power (Philippines), every unit is engineered in full compliance with IEC 60076, IEEE C57, ANSI C57.12, and ISO 9001:2015 standards.

โœ“ Full Type Test & FAT Support (VILAS 1183 Accredited Lab)
โœ“ Custom Vector Groups, DETC/OLTC & Special Impedances
โœ“ Export Packaging & International Freight Logistics (FOB/CIF)
โœ“ Low-Loss CRGO & Eco-Friendly Amorphous Alloy Core Options
Inquire Now