About Us

Introduction

Tseyu International Trading Co., Ltd. is a well-established manufacturer and marketer in Hong Kong for over 40 years. Our holding company Shen You Holdings Limited is listed on the Hong Kong Stock Exchange (Listing Number: 8377) since December, 2017. We specialize in manufacturing high performance sewing threads. Today we have already evolved into a market-driven and service-oriented organization supported by a strong manufacturing base in China.

Tseyu at Present

Tseyu is one of the largest thread manufacturers in Hong Kong with the highest number of colours (more than 1,500 colours) available for customer choices. Our mission is to exceed your expectation. To achieve this we are committed to the principles of comprehensive quality control to assure the best quality standard that guarantee excellence.

Manufacturing Process

Process and Inspection Point For Thread Production
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Toray and Tenjiin Raw Material
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Ring Frame
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Yarn Count Strength Test
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Doubling and twisting
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Temperature and Wear Resistance Lubricant
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High Temperature Cone Dyeing
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Soft Cone Winding
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Twist and Strength Test
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Color Matching
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Fastness Test
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Thread Winding and finishing
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Final Test Packaging and Storing
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Customer

Strict Quality Control

Toward our product’s quality, we undertake strict control over all raw materials. Today our factory – Guangzhou Xinhua Thread Co., Ltd has been found to conform to the Quality Management System Standard: ISO 9001:2015/GB/T 19001-2016.
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Dyestuff
As a means of achieving brilliant and fast colours, all our dyestuffs are of high quality and imported from many advanced countries.
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High Temperature and High Pressure Dyeing Process
We ensure high temperature and high pressure dyeing machines to assure the colour fastness and the washing fastness is up to the international standard.
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Advanced Winding Machines
For the aspect of sewing thread machinery, we have installed “VOLKMANN” twisting machines and the winding machine “THREAD KING” to wind the threads in cone form automatically.
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Consistently high quality inputs
We steadily increase spending on computerizing the manufacturing process. We apply special emulsified lubricants in dye bath, which contributed the thread with better sewabilities.
By using these superior machines and dyestuff, all our thread quality is well assured and up to the international standard. Our certification with the Oeko-Tex Standard 100 HKB 17829 Testex is a good proof.

Environmental Protection

Besides all other factors, responsible and comprehensive environmental protection, maximum safety, high product quality and optimum commercial efficiency are equal priorities for Tseyu.

Certificate Guarantee

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