Precision-Driven Innovation,
Partnership-Built Excellence.
SJ – More than precision manufacturing. We are your strategic partner on the journey of product innovation.
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39
Years Precision Manufacturing Excellence -
4Integrated Business Clusters
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45000
㎡ Smart R&D & Production Base -
500
+ Global Partners
Industrial & Others
Medical
Packaging
Consumer Electronics
Automotive
Built for Innovation. Powered by Precision.
SJ since 1987 – one-stop smart manufacturing across five industries.
Your innovations get faster launch, higher quality, and greater supply chain agility.
39 Years. Six Principles. One Promise to You.
After 39 years of accumulation and precipitation, SJ has gradually formed its own cultural philosophy, consistently adhering to the core values of "integrity, pragmatism, responsibility, rigor, efficiency, pursuit of excellence, embrace of change, and mutual achievement". These are the fundamental beliefs and principles that all members of the company uphold in pursuing their goals.
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Integrity -
Ownership & accontability -
Precision & Efficiency -
Excellence -
Enbrace the change -
Mutual Success
Milestones
1987
Wing Lo commenced his career in the plastic mold industry in 1978 and subsequently founded WAILAM Mold Factory in 1987.
2004
On July 19, 2004, SJ Group was established
2008
In 2008, SJ successfully entered the packaging
industry, specializing in thin-wall packaging
and precision molds for multi-cavity bottle caps.
2013
SJ obtained the "National High-tech Enterprise" certificate.
2014
On July 1, 2014, SJ established its branch in Germany and began expanding into overseas markets.
2015
SJ established 4 stable after-sales service centers in US.
2017
SJ established a medical subsidiary: NOVOS BIOTECH.
In 2017, SJ entered the field of liquid silicone rubber and focused on products for mothers and infants as well as sealing products.
2018
SJ partners with multiple universities to build an industry-education integration ecosystem, driving sustained innovation through talent strategy.
2019
SJ obtained the "High-Growth SME"certificate.
SJ won the Honorary Certificate of “High-growth small and medium-sized enterprise” in Guangdong Province“ in 2019.
2021
SJ completed construction of a Class 100,000 GMP workshop.
SJ contributed to key research on rapid test chips for epidemic control and received a thank-you letter from China’s Ministry of Science and Technology in 2021.
2022
SJ was rated as “Guangdong Province Preci- sion Mold & Molding Engineering Technology Pro- cessing Research Center”in 2022.
2023
SJ won the honor of “Specialized and Sophisticated SMEs".
2024
Hong Kong Mould & Die Council 35th Anniversary
Celebration Operational Excellence Award (Design
& Manufacturing Technology) – Won by SJ.
2025
SJ established a wholly owned subsidiarysubsidiary: ShenJun ChuangXin (Shanghai),and deepened industry-university-research collaboration in the healthcare sector by partnering with several renowned medical universities and leading experts, continuously driving the incubation and realization of innovative medical projects.
2026
SJ adopted "Integrity and Innovation" as its core value, leading organizational and business restructuring and transitioning from traditional manufacturing to a dualengine "Technology + Service" strategy.
Corporate Honors
AAA credit rating
National high-tech enterprise
Specialized and competitive small and medium-sized enterprises
Crafted in China. Delivered Globally.
SJ has 2 innovation centers, 3 production sites and service centers in 7 countries.
We put our innovation at your doorstep — from Shenzhen to Stuttgart, from Shanghai to São Paulo.
Not a supplier far away. A partner right beside you.
US
Mexico
Brazil
Germany
Czechia
Russia
Wuxi
Shanghai
Chongqing
Shenzhen
Japan
Innovation Centers
Production Base
Service Center
Trusted by Industry Leaders
We partner with Fortune 500 companies and global market pioneers — and we’re honored to earn their long-term confidence.
