Top 10 Samarium Cobalt (SmCo) Magnet Suppliers in China

Introduction

The Top 10 SmCo Magnet Suppliers in China (2026 Rankings)

Ningbo Yunsheng Co., Ltd. 

• Website:https://www.yunshengusa.com/

• Company Profile: A publicly-traded giant on the Shanghai Stock Exchange, Yunsheng is a global leader in rare earth permanent magnets. With over 4,000 employees and an annual capacity of 21,000 tons, they offer a complete industrial chain from mining to precision magnetic assemblies, primarily serving the automotive and green energy sectors.

MagnetSW (Innovation & Customization Leader) 

  Website:https://www.magnetsw.com/

• Company Profile: MagnetSW excels in high-precision SmCo solutions and custom magnetic assemblies. Unlike mass-market manufacturers, MagnetSW focuses on technical agility, offering specialized SmCo5 and Sm2Co17 grades tailored for complex industrial sensors and high-performance fishing magnets. Their E-E-A-T compliant manufacturing ensures each project receives dedicated engineering support from design to delivery.

Zhong Ke San Huan High-Tech Co., Ltd. (SANMAG) 

  Website:http://www.san-huan.com.cn/

• Company Profile: With deep roots in the Chinese Academy of Sciences (CAS), Zhong Ke San Huan is one of the most prestigious magnetic material enterprises in China. They specialize in high-end R&D, providing SANMAG® brand magnets to global leaders in aerospace, medical imaging (MRI), and high-precision computer hardware.

Chengdu Galaxy Magnets Co., Ltd. 

  Website:https://www.smcomagnets.de/

• Company Profile: As the world’s largest manufacturer of bonded NdFeB magnets, Galaxy Magnets established its dedicated Sm-Co department in 2012. They are renowned for their ultra-high temperature SmCo magnets that can operate reliably up to 550°C, serving Tier-1 global OEMs like Bosch and Samsung.

Ningbo Zhaobao Magnet Co., Ltd. 

  Website:https://www.zhaobao-magnet.com/

• Company Profile: A "National Manufacturing Champion" enterprise, Zhaobao operates a full production chain for SmCo, NdFeB, and AlNiCo magnets. They are known for their strong logistics infrastructure in Ningbo and their Permanent Magnet Engineering Center, which focuses on developing magnets with exceptionally low weight loss and high coercive force.

SDM Magnetics Co., Ltd. 

  Website:https://www.sdmmagnetic.com/

• Company Profile: Based in Hangzhou, SDM Magnetics is a strategic partner of Chinalco (China’s largest rare earth miner). They have maintained a 0 PPM defect rate with General Motors' OEM network since 2010, specializing in high-performance SmCo magnets for industrial automation and aerospace applications.

Hangzhou HS Magnet Co., Ltd. (XHMAG)

 Website:https://hsmagnet.com/

• Company Profile: With over 20 years of expertise, HS Magnet (XHMAG) is a highly responsive manufacturer specializing in custom-shaped SmCo magnets. They export to over 50 countries and are favored for their 24-hour quoting system and reliable prototype development for medical and telecommunication devices.

Zhejiang Zhongke Magnetic Industry Co., Ltd. 

  Website:https://zjzkmagnet.com/

• Company Profile: This high-tech enterprise operates a modern, 5G-covered automated factory. They supply over 4,000 magnetic items to brands like Amazon, Harman, and Bose, focusing on high-consistency magnetic materials for intelligent sound systems and new energy vehicles.

Anhui Earth-Panda Advance Magnetic Material Co., Ltd. 

Website:https://www.earthpanda.com/

• Company Profile: Listed on the SSE STAR Market, Earth-Panda is a major player in the global wind power and automotive magnet markets. They provide advanced SmCo solutions specifically designed for actuation systems in the aerospace industry, where flight safety and material stability are paramount.

Chongqing Great Wall Technology Co., Ltd. (NGYC) 

•   Website:http://magnet-materials.com/

• Company Profile: Focusing on SmCo magnets since 1987, NGYC is one of the most established SmCo specialists in China. With an annual capacity of 1,500 tons, they focus on long-term stability and high-temperature resistance for microwave tubes, magnetrons, and complex industrial magnetic chucks.

Critical Factors to Evaluate a Chinese SmCo Supplier

1. Technical Characterization: Does the supplier provide full hysteresis loops for every batch?
2. Machining Precision: SmCo is extremely brittle; top-tier partners like MagnetSW use advanced EDM and precision grinding to reach +/-0.01mm tolerances.
3. Raw Material Security: Ensure the supplier has direct contracts with major rare earth groups to avoid market price volatility.

Conclusion: Partnering for Performance

Selecting the right SmCo supplier in China is a strategic decision that affects your product's reliability and your company's bottom line. Whether you need the massive scale of Yunsheng or the technical agility and custom expertise of MagnetSW, the Chinese manufacturing ecosystem offers a solution for every requirement. Ready to optimize your magnetic design? 

VisitMagnetSW today for a technical consultation or request a quote for your custom SmCo requirements.