About US

ABOUT MERRYLOCK

Who We Are

Established in Taiwan in 1992, Tsang Yu Industrial Co., Ltd. specializes in ODM manufacturing of premium household sewing machines. With over three decades of experience, we partner with leading global brands to transform innovative ideas into reliable, high-quality sewing solutions.

Backed by strong engineering expertise, flexible customization capabilities, and advanced manufacturing technology, Merrylock has earned the trust of customers in more than 70 countries worldwide.

30+
Years of Experience

20+
OEM / ODM Partners

70+
Countries Exported

OUR CORE VALUES

Driven by Purpose

Quality, Innovation, Practicality, and Harmonization define who we are. They guide every product we develop and every partnership we build.

品質

Quality

創新

Innovation

務實

Practicality

和諧

Harmony

Vision

To become a globally trusted sewing machine manufacturer by continuously pursuing innovation, superior quality, and long-term value creation.

Mission

To develop innovative sewing technologies and deliver reliable products that exceed customer expectations while supporting sustainable growth.

Philosophy

Quality is our foundation. Through integrity, teamwork, innovation, and continuous improvement, we create lasting value for customers around the world.

History & Milestones

Now

2026

D&B Taiwan Top 1000 Elite SME Award

2025

Merrylock MK6070
-2025 Tawian Excellence Award (Gold Award)
-2025 Golden Pin Design Award (Best Design-Product Design)

Merrylock MK6075
-2025 Red Dot Design award (Product Design)

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 worldwide brands.

1992

Established in Dali, Taichung, as a company specializing in the design and manufacture of household overlockers, sewing machines and felting/embellisher machines.

CERTIFICATIONS & AWARDS

Trusted Worldwide

International certifications and prestigious awards reflect Merrylock's commitment to quality, innovation and manufacturing excellence.