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A family-owned manufacturer with an office in the U.S.
Hengtai is one of three companies in a family-owned group. The factory in Liyang makes the parts; PRIM in California and Liyang Yidu in China support customers and logistics.

The group
Jiangsu Hengtai Electronics and Plastic Co., Ltd. was founded in 2006 in Tianmu Lake Industrial Park, Liyang, about a 2.5-hour drive west of Shanghai. The site covers 33,000 m² of land with 16,000 m² of plant area, and about 100 people work there.
The group is under long-term family ownership. Key managers have been with the company for more than 14 years on average, which keeps engineering knowledge in place for programs that run for many years.
Three companies, one group
| Jiangsu Hengtai Electronics and Plastic Co., Ltd. | The factory: tooling, injection molding, CNC machining and assembly. Founded 2006. |
|---|---|
| PRIM Technology, INC. | Sales and support office in California. Quotes, NDAs, U.S. dollar invoicing and day-to-day support for international customers. Founded 2004. |
| Liyang Yidu Import & Export Co., Ltd. | Trading company for export handling and sourcing of purchased components. |
Milestones
More than 20 years of contract manufacturing for customers in Europe and North America.
- 2004PRIM Technology, INC. starts supporting North American customers from California.
- 2006Hengtai is founded in Liyang, Jiangsu.
- 2010ISO 9001 certification.
- 2018IATF 16949 certification.
- 2026300 kW rooftop solar power system goes into operation.
Why customers stay
- Your drawings stay protectedNDAs are signed through PRIM, a U.S. company in the same family group. Drawings and data are strictly controlled.
- Bilingual team across time zonesEngineers and managers in China and California, so questions get answered during your working day.
- Easy to visitThe factory is about 2.5 hours from Shanghai, and we meet customers in the U.S. and Europe.
Request a quote
Send us your drawings, material, annual volume and target date, and we will reply with a quote.