About Us_1


Company Overview

Over the past 40 years, we have earned the trust and support of our customers through unparalleled technical research & development as well as by providing round the clock response to service request. We focus on research & development, manufacture and the supply of mechanical seals, dry gas seals, auxiliary systems, rotary jet pumps and other related products. With superior technical strength, state-of-the-art manufacturing facilities and processes, combine with the provision of overall sealing solutions, we are committed to become a world class fluid control equipment and aftersales service provider for customers around the world.   

Sinoseal Holding

Company History

The predecessor of the company, Sealing Technology Research Department of Sichuan Provincial Machinery Research & Design Institute was founded on July 17, 1978. Subsequently in 1992, Sichuan Sealing Engineering Technology Research Center was established.
Keeping up with the times
Keeping up with the times
In September 1993, following the policy of national reform and opening-up, Sichuan Sealing Engineering Technology Research Center and NIKKISO in Japan jointly invested to form the first Sino-Japan foreign joint venture company in Sichuan Province, Sichuan Nikki Seal Co. Ltd.
Structural Reform
Structural Reform
In 2009, the company was converted from a JV company to an equity diversified joint-stock enterprise. Consequently, the company was renamed to Sichuan Sunny Seal Co., Ltd. The reform of mixed ownership was completed in 2010.
Reform and Listing
Reform and Listing
On June 12, 2015, the company was listed on the Growth Enterprise Market of the Shenzhen Stock Exchange, becoming the A-share listed company in China's mechanical seal industry.
Capital Investment
Capital Investment
Sichuan Sunny seal Co. Ltd. completed the merger and acquisition of UTEC(Suzhou) and Dalian Sun Seals Ltd. in 2016 and 2018 respectively.
Strategic Renaming
Strategic Renaming
Commensurate with the leading position in the domestic market and the ambition to further develop its international business, the company was renamed to Sinoseal Holdings Co., Ltd. in 2019.


Global network of Sinoseal 

Sinoseal’s manufacture located in the most cost competitive and efficiency country, and our service center almost covers most of the industry booming areas, which can serve our customer with local facility and engineers.

Core Values

Create value and pursue excellence

● Create value for employees

● Create value for customers

● Create value for shareholders

● Create value for society

From excellence to superiority, enterprising in pioneering and surpassing in enterprising.

Social Responsibility

Since its establishment, the company has been actively fulfilling its corporate social responsibilities, responding to government calls, observing laws and regulations, and operating in compliance with regulations, continuously improving corporate governance structure, and effectively protecting the rights and interests of investors and employees


Email: export@sns-china.com
International sales: +86-028-85373902
Address: No. 8, 4th Wuke West Road, Chengdu City, Sichuan Province,China

Sinoseal Holding Co., Ltd. is a Chinese  listed company and a leader in China’s Fluid Sealing Industry. Sinoseal has transformed its 40 over years of research and development experience into a professional  company  specialized in the production and a provider of overall sealing solutions for its  customers. With our strong technical strength and advance technology and equipment used in manufacturing , Sinoseal’s  products and services enjoy a good reputation across the industries it serves in China.

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