About us

A manufacturer in China's automotive radiator industry, capable of independent development, design based on supplied drawings and samples, and manufacturing of automotive refrigeration system products.

SINCE 2004

Qingyuan Saimisi Trading Co., Ltd


Global Path, Chinese Heart; Xingmaisi Trading Co., Ltd. is a wholly-owned subsidiary of Guangdong Xintongshi Group. Its parent company has been dedicated to various products for automotive engine cooling systems for over two decades, serving as a comprehensive production-oriented enterprise integrating research and development, production, and sales. In recent years, to better serve the market and customers, and to provide employees with more and better platforms, the company has gradually established a trading company to separate production from sales, thus giving birth to Xingmaisi.

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The group company was established in 2004, with its own brand "tongshi" and five production bases, covering an area of 160,000 square meters. The company's main products include various types of fuel and new energy cars, trucks, agricultural machinery copper and aluminum radiators (including brazed and expanded tubes), condensers, intercoolers, warm air systems, evaporators, oil coolers, industrial generators, industrial and energy storage cooling system products, with up to 18,000 models. The company continues to invest in product development every year, with over 400 new models being developed each year. Its products are exported to more than 100 countries worldwide, including original equipment manufacturing (OEM) and after-sales services.
The company continues to extend its industrial chain and enhance the self-sufficiency rate of its own components. Apart from raw materials, over 90% of the parts are self-made by the group company, ensuring production delivery and quality management. Additionally, the group company boasts a laboratory certified by SNAS, equipped with comprehensive experimental procedures. It conducts periodic testing on various products to guarantee the quality of the products produced and supplied.
The company continuously introduces advanced management concepts and systems, strengthens various types of management, and consistently delivers valuable and vibrant high-quality services and products from manufacturing to sales.

Corporate culture


Service idea

Customer satisfaction is our eternal pursuit

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Core values

Customer satisfaction is our eternal pursuit

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Enterprise spirit

Hard work, teamwork, seeking truth from facts, openness and inclusiveness

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Service idea

Customer satisfaction is our eternal pursuit

04

Honors


Certificates
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Certificates

Corporate environment


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