About US

About Us
Your best choice of overlocker
About Us
TSANG YU INDUSTRIAL CO.,Ltd

is a sewing machine manufacturer based in Taiwan, established in 1992. With an in-house sewing machine factory to develop and produce high-quality household overlock machines, multi-functional overlock & cover stitch machines, computer sewing machines, felting machines with punching designs, and accessories over the years. TSANG YU INDUSTRIAL CO., Ltd has specialized in providing ODM services for internationally renowned brands and marketing our products as Merrylock brand name to global markets.

With extensive experience in developing innovative technology and securing invention patents, the company has established itself as a reliable ODM supplier for leading global household sewing machine brands. Its commitment to innovation and quality has been recognized with prestigious accolades, including the National Design Award, Innovation & Creation Award, and Innovation Research Award in Taiwan.

Merrylock's in-house sewing machine factory
 
Quality, Innovation, Practicality, and Harmonization
Are Guided by our sustainable development corporate philosophy. TSANG YU provides innovative products, competitive prices, and establishes long-term & trusty partnership with customers.
 
 
Vision
Pioneering efforts towards top-notch quality and developing innovation to become the world’s leading sewing machine manufacturer. Mastering global trends, and satisfying the holistic demands of our customers with sustainable value creation to establish trusted partnerships.
 
 
Mission
Our mission is to continuously drive technological innovation, lead the development of the sewing machine industry, and deliver products that exceed user expectations through continuous innovation and invention.
 
 
Philosophy
Quality is our guiding principle and the cornerstone of our business. We focus on our core business, continuously innovate and strive for sustainable operation. Integrity and pragmatism make us a trusted partner to our customers. Teamwork, responsibility, diligence, harmony, and sharing are our values.
History & Milestones
Now
 
 
2025
-Tawian Excellence Gold Award
Merrylock MK6070
Household Air Threading Overlock and Coverstitch Combo Machine
-Reddot Design award 2025 (Product Design)
Merrylock MK6075
Household Air Threading ft. auto-tension Overlock and Coverstitch Combo Machine
 
2022
Tsang Yu 30th anniversary . Celebrated the expansion and moved the headquarters to Nantou city with a sustainable, green facility. Growing with the fruitful achievements in the past and prospect to the future.
2019
Awarded the Taiwan Excellence Award.
2018
Qualified with ISO9001:2015 Quality Assurance System
2015
Qualified with ISO9001:2008 Quality Assurance System
2010
Implemented the ERP system.
2003
Awarded the 10th Enterprise Innovation Research Award
2002
Gold Medal Award of the 11th National Invention Award Individual Category
1999
Model MK740 won the prize of National Design Award (Product Design Category)
1996
Quality, innovation, pragmatism and harmony leads our brand, Merrylock worldwide.
1994
Model MK500 and MK600 series launched, cooperated with the Swiss company- BERNINA, and Japanese company- JUKI (Baby Lock)
1992
Established in Dali, Taichung, as a company specializing in the design and manufacture of household overlockers, sewing machines and felting machines.
 
Certifications and Awards
0
Inquiry